STRAIGHTEN wonky walls with BondingCoat Plaster | 4 simple steps

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IN THIS VIDEO
LEARN HOW TO STRAIGHTEN A WALL WITH BACK COAT PLASTERS SUCH AS BONDING, HARDWALL AND SAND & CEMENT IN 4 SIMPLE STEPS!
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kirkjohnstone.co.uk

[@Onthetrowel]

Get 15% off Carly with code "TROWEL " when you click - bit.ly/OnTheTrowel_Carly_Offer

[@m.c.SHoppIng.cenTrE]

as a tiler, whenever someone says 'we have a plasterer coming in first to get the walls ready' i always shudder, 90% of the walls i'm given are nice and shiny and are never flat enough to even stick small tiles on, let alone these massive 900mm tiles that are popular at the moment, well done mate on highlighting the right way to straighten up wonky walls .. :) cheers bud

[@Lemon-squeezer]

That’s because the tight arse customers only want you to skim it they don’t want you dubbing out as it costs more and they all ways say its just for the tiles to go over

[@ksmith7611]

And you shouldn't tile onto skim neither

[@muhammada5178]

@@ksmith7611no mate you can. You can’t tile onto bonding or hard wall. You’re just limited to 20kg/sqm weight with plastered walls which is pointless is walls are boarded well, as the plasterboard holds 32kg/sqm before the skim!

[@m.c.SHoppIng.cenTrE]

@@muhammada5178 in 25 years of removing tiles i've found that tiles on bonding is better than skim, although removing them will take the bonding off the wall with it if sealed correctly, often back to the brickwork. but i agree that plasterboard is the best for large format & porcelain tiles , unfortunately Tile shops are selling tiles to the public that are unsuitable for average housebuilds in the U.K.

[@m.c.SHoppIng.cenTrE]

@@Lemon-squeezer this is why many customers either get a massive shock when theyre told the walls are unsuitable and require levelling again, or end up with a really crap tiling job. next time a customer says that to you, explain how important it is to get a nice finish from the tiler, it will save them alot of heartache in the end.

[@Dutchy8ball]

Respect there mate as a Plasterer for 40 years bathrooms are the worst jobs of all I’d say, no room to swing a cat, bathroom installers and tilers all think you can plaster them in a few hours and work you do doesn’t get seen at the end of the job as it’s all behind the tiles, well done good vid 👍🏻

[@m.c.SHoppIng.cenTrE]

i know, us Tilers get most of the praise on completion, but i always appreciate the chaps who prep the room , it's the most important of the process, except maube the Plumber, LOL

[@stevelopez372]

Plasterers prepping walls for Tile. Never heard of it in California. Old tilers took care of prepping their own walls. The Building Code allows up to a 1/4 variation in 4-5 ft. Straight edge for exterior plastered walls. No good for tilers. However in UK or other countries it’s interesting that plasterers would do that prep and understand what’s necessary for tile work.

[@marklundeberg7006]

Fun mathematical fact: if you darby a surface horizontally and darby it vertically over and over again, until straight both ways, it doesn't mean it is flat. Rather it can be a "bilinear surface" - look that up. So checking at odd angles may be important.

[@TRMNNYC]

Some years ago, I began learning three coat plaster in the wake of a disaster involving joint compound on old plaster walls. Entire first floor of a house and an orbital sander with a serious grit to reverse the mistake. It hurt. Finding no one in the NY metro area to at least give me pointers, I embarked on my own trial and error program-do I really have to say mostly error?! Recently, I decided to attempt a screeding concept using metal corner beads. Yeah, kinda pathetic. But how to achieve those elusive flat walls that I just could never get? Well, I own a feather board and a Darby, but I was uncertain just how to use either? This video has provided the next steps of my learning process that would have taken a lot more time without it. I really appreciate your instruction. Thank you so very much for your time and your effort.

[@markobrien4940]

Great work kirk your a legend to the plastering game and such a nice down to earth genuine guy .😊

[@lazylad8544]

Ive learnt loads from your videos and advice. Thank you. You have saved me a fortune. Thanks again.

[@slashermcgurk2191]

Worth the watch for the Carly advert alone 😅 some top acting, you sure you weren’t on Brookside back in the day?

[@eddjordan2399]

fantastic work as always dude.

[@markhannan4712]

Great job love watching your skills

[@user-ym1ff1vg8c]

Cheers Kirk You're the "Plaster Master" ❤ I love you're videos Look forward to your next one Take it easy

[@lewisriggs6596]

Lovely work been doing some this this week

[@peterphillips9785]

Brilliant video. Cheers Kirk

[@dccowell56]

good work, you are right about modern plasterers for example l rendered my mate's house on the outside he could not do it on his own he is a PLASTERER, but still he helped me and learnt a lot, keep up the good vids

[@Matt-yl2ok]

Well I won’t be devil floating and having to scrape down anymore cheers mate 👍🏻 been plastering 15 yrs 38 now 😅 always put a key in to be honest in the past

[@Mazzeha]

Brilliant, thank you!

[@tkilla1202]

You're an excellent teacher, thanks.

[@smellypunks]

This is the best video yet, full of great info.

[@ernestogonzalez17]

great work Kirk

[@Mateus-sz4je]

👍Sometimes i'd dab/level up 3" wide strips of plasterboard floor to ceiling in 1mtr bays, float up bays in no time using the strips as guide for straight edge then pop them out and fill in.

[@michaelfoley1080]

Great tutorial pal. Cheers from Dublin.

[@funcleandwuncle]

I'm off to Denmark to do a friends bathroom for him (plumber) and he has breeze block walls which i know ill have to sort out so this video is very helpful. cheers Mate for the guide how to not have a tiling nightmare. I will of course be tanking sealing everything...

[@joebruniges6478]

Spot on Kirk quality work as always mate 👌🏻

[@Onthetrowel]

Thank you mate

[@cadjet37]

He's bloody good

[@Verinoplastering]

Nice work

[@shodan198]

Stunning mate love the video hope u and the family r well

[@Onthetrowel]

All good my friend thanks for asking. Hope you are doing OK 🙂🙏

[@shodan198]

@Onthetrowel I'm 💯 percent mate back on it and feeling good

[@tonydalton6756]

What a great video pal.

[@petemoring67]

Regarding the Devil-Float? .... Your Dad is Right! ... Most! Plasterers think it's all about KEY! ... It's NOT! .... Thistle/Siraphite/Statite would ALWAYS stick to Sand & Cement Render whether 'keyed' or not! ... The purpose of the Devil-Float is primarily to get the surface 'Flat & Closed' ... Rather like using a 'Cross-Grain' as the No2 Float in a 3 x coat finish .... When you can lay a render wall on pretty flat anyway, you don't need a rule - Just a GOOD Devil-Float and it'll come out Perfect!! 👍🤠

[@danfenton89]

Anthor good video and top work mate 👌

[@Onthetrowel]

Cheers Dan mate

[@poohpot4462]

Really liked this one Kirk. When is the vid with screeds coming out? Can't wait!

[@7heavenfist572]

Excellent videos, outstanding work. 👍👍👍Thank you. U earned my subscription.

[@Onthetrowel]

Awesome, thank you!

[@geoschickencity788]

ya bois editing skills moved up another level

[@bernardbrown4880]

Good stuff

[@whippetRalph]

Cheers, just ordered a Carly.

[@Onthetrowel]

You can do all sorts with them, I've done a few little modifications to her car with it

[@ianking4713]

Best plasterer on KZbin

[@Onthetrowel]

Thankyou

[@DlStreamnet]

Top video. Spent the day "joint and taping" an overboard of a lathe and plaster ceiling. I said to my mrs half way through the job, Kirk would have had the entire room skimmed by now!! It is as proper science + art in one.

[@Onthetrowel]

It's tedious work isn't it mate. Glad you got it done though

[@nigelparker5886]

@@Onthetrowel Although you do have to wonder what a lathe was doing on the ceiling anyway!? I do know that they did use lath and plaster years ago! Tee Hee! Cheers

[@tonydavis8916]

Got to say i am not tradesmen but absolutely luv your videos great work

[@johnjtplastering6991]

Watched lots of his videos class plasterer but very surprised he's using bonding in a bathroom big mistake bonding turns mushy in bathrooms

[@pat9859]

Nice work pal, I also prefer sand & cement

[@philgrant83]

Back to your bathroom renovation at last Kirk. Looking good, another great video, top fella.

[@Onthetrowel]

I've been busy with work but got to get a bit done when I can 🫡😂

[@philgrant83]

I know how it is, work comes first. I always say happy wife, happier life😂😂

[@johnturrell942]

Great demonstration Kirk. You are a true skilled tradesman. However as its a bathroom I would have lined it out with insulated tile backer boards.

[@tomybino1426]

Like the vid - good tips. I did like that in my bathroom. Actually, I have enjoyed it. Quite relaxing :)

[@ThriveTalesTV]

like .very informative

[@paulhiggins9492]

Plumb not level pls drives me bonkers.

[@geneva760]

CHEERS from AUSTRALIA

[@damianbodally5006]

Great info for a avid DIY-er like myself thanks matey she’s gonna think I’m a legend when I mess the bathroom walls up 😂😂 but talk like I know what I’m doing 👍👊

[@Onthetrowel]

Yeah but it will be a good story for the pub... joking aside. Just take your time. It's hard to get it wrong if you seal the wall and scratchcoat it

[@meejhgggg]

I have watched your video in past and u was saying don't need scratch b4 skiming😊

[@Onthetrowel]

That's correct mate

[@johnwarwick4105]

Funny I was thinking why bother with the skim coats if you are tiling it anyway, reading the comments some say that they won’t stick to bonding coat, can’t understand why as that tile adhesive sticks to most things 🤷‍♂️🤷‍♂️

[@anemone9895]

Did a massive wall yesterday

[@elliotcarter6907]

Kirk, can you do some solid wall plastering. Particularly internal exterior walls like window walls and how to combat them. Im facing an issue where i cant baton and foil back the board due to the style of window and unsure on rendering and skimming without stopping damp etc. Quite new to the game. It would be great to see. Your content is great. Elliot

[@peterfitzpatrick7032]

Just as well ya left the loo there... those pot noodles'll go right through ya !! 🙄😂 Whilst I really appreciate you demonstrating the process here, as a 66y.o. DIYer myself, restoring a 100y.o. farmers cottage, I prefer to do other work and leave this stuff to those who have the years of experience, playing to your strengths is important. I simply don't have time to build experience but I DO like to understand the process...been subbed a good while now too ! 😎👍 One job I did do here was to rout out the old lime mortar between the stone using a cordless drill & a 1/2" masonry bit to almost 6" depth ( doing sections at a time so it didn't collapse in on me !! 😮) and re-pointing every single sq. inch of the inside of the exterior wall surfaces... the old stuff was virtually just sand, spilling out... 🙄 No DPC in the floors so I put a layer of 25mm rigid insulation down followed by poly followed by 22mm flooring ply and laminate flooring on top (vinyl laminate in the kitchen /bathroom) I would have liked more floor insulation but was limited by the internal doorway heights... Speaking of doorways, when re-pointing the walls over the doors, I found old tree branches used as lintels !! 😂 they crumbled when I just looked at them ! 😮... new concrete lintels were installed, heavy work on yer own .. 😤 I lowered every ceiling by a foot, dry-lined, plumbed and re-wired ... and filled it with rigid foil-backed insulation , 8" in the ceilings, 3" in the studded walls ( I built 3 x 2 studded internal walls stepped an inch away from the old stone external walls to allow for breathing up into the vented loft area) and 38mm insulated drywall over that for a 100% thermal break... Thank you for your channel, its hard work, I'm sure... but it is appreciated !! From the West of Ireland 😎👍☘️🍺

[@boris100ish]

More quality work very well explained. Obvious to see your pride in your profession. Nice to see your daughters car getting sorted too 🤣All pays the bills. 👍. Thanks for taking the time to film and edit. All the best Pete

[@SamuelRowlands-sh8zl]

Good job Kirk can we see a video on the island

[@Onthetrowel]

Of course mate... when I get around to it though 😉

[@yfelwulf]

I only plaster at home every few years just replaced some heaters watching you I realise I'm a far too harsh Critic of my work. I get frustrated at how long it takes me to get a good finish. Cheers me up when AC installers and the original fitter said I can't see any sign of the Hole I made and was there a heater here. Still hate plastering.

[@adamreaney6651]

My mate Joe loves you kirk ❤️ just a little bit go in neat 😂

[@petermc1743]

Nice video thanks, but what next? If you cant skim it for a few days, presumably you're into sealing it (with SBR?). Then will multifinish key to it ok?

[@stevengordon2145]

Float & set .... finally mucka Been busy hope ya good & family doing well. Darby & devil float are out he's not messing 👍

[@Onthetrowel]

We need some nice big m² so we can run some screeds and really get into it.

[@stevengordon2145]

@@Onthetrowel I know bud biggest .. issue is time and finding the right job. all to often clients don't wanna hang around so ya gotta board it out. I enjoy float work finish goes on lovely. Asked a lad to dub out a ceiling he looked at me like was from Mars 🤣

[@Onthetrowel]

There's no solid plastering being done anywhere now, most of Europe is just tape and joint. It's a shame but nobody will have a clue in another two generations

[@stevengordon2145]

@@Onthetrowel I know bud sad really. my kids got absolutely zero interest in taking up the trade... When I started the plasterers on site were real spreads. None of this I can use muilt or board I was part of 3 man gang. You earned ya money ya cover all aspects of solid plastering. floating in the morning finish after 10.30...we never used to lay on after midday unless on private work. Still have nightmares about trying to start the mixer on a cold morning and can't be arsed.

[@user-yf9uh8hb4m]

Hi kirk Great work as always pal👏 just curious to know are you planning on insulating the exterior wall with a thermal boards? I have recently seen diathonite being used and was very impressed with its thermal performance.. Just thinking it be right down your alley as it is a plaster 👍

[@Onthetrowel]

I wasn't planning on it mate. To be honest the only tome I would be inclined to use insulation is if we didn't have a cavity. I'll take a look at the boards you've mentioned though. Thanks mate. Have a lovely weekend

[@richardlewis5316]

As a bathroom fitter (not tiler!) if the whole wall is uneven I simply fix plaster board to the wall for tiling or a skim coat of plaster. Could this have been done in the bathroom in the video?

[@conzinho1905]

These new videos are class

[@Onthetrowel]

Do you mean you prefer my new style of editing mate?

[@conzinho1905]

@@Onthetrowel basically yeah 🤣

[@Onthetrowel]

Thanks mate. I'm trying to get straight to the point with the videos now. Think it's a better experience for people who want to know

[@conzinho1905]

Yeah I’m an apprentice plasterer been watching your videos for a while now and they’ve been quality but the newer ones really feel like I’m soaking in all the information. Top man for putting all the effort in to help the young lads out 👍

[@Onthetrowel]

It's a pleasure mate and it makes it more worthwhile when people like yourself take the time to leave a nice comment. Have a good week mate

[@derek876544]

Been watching your vids you havn t covered the plasterers radio yet 😂

[@wr.carpangler]

It's the vermiculite in the bonding which allows you to skim straight over it without a key

[@BrettSucks]

He shouldn’t even be using bonding in a bathroom

[@rosco7280]

I would have put a thin coat of bonding over all that the straighten it with hardwall its alot to work woth than bonding i think personally 👍

[@peterphillips9785]

Hey Kirk....could you tole straight onto the bonding coat if flat? Cheers...

[@tbonemccabe4203]

All the bags of adhesive say tile onto finish coat only

[@williamyates4196]

100% graft this lads really hard and mentally harder than it is physically 😂 I'd sort it for a days wages £230 including materials.

[@muhammada5178]

Hi Kirk, as my brother who has taught me a lot about plastering. Since you’ve helped me become a better plasterer, as a bathroom specialist myself. I just thought I’d mention that you should have used Sand and Cement instead of the bonding and tiled straight onto that, this would have allowed you to put any tile onto the wall.. Whilst your method is also correct you are now limited to 20kg per sqm in tiles and adhesive and grout once you skim the walls this is again if tiling the walls meaning your safest bet is to use a ceramic wall tile and not porcelain as it would be too heavy. Regards Shiv. Hopefully this comment reaches you before you get to tiling. If you would like me to do it for you for free pls give me a message id be honoured to help you.

[@muhammada5178]

Also Kirk you will be ok regarding tile on plasterboard as it’s 32kg per kilo. It’s recommended to tank shower area also

[@raj080288]

Why is the bonding grey? Thought it should be pinkish?

[@davidharding3058]

Hi kirk You said sand and cement. On block brick. What would be your ideal ratio first second coat. If you where on the sand and cement route. What would you do pva or the tride and trusted. Cheers kirk. 🏴󠁧󠁢󠁷󠁬󠁳󠁿👍

[@Onthetrowel]

4:1 / 5:1 and no need for any sealer also pop some waterproofer in the topcoat and it will make it nicer to skim.

[@davidharding3058]

Sound thanks 🏴󠁧󠁢󠁷󠁬󠁳󠁿🍻

[@bobfish7699]

Cavety Closers? Can you talk about installing and then covering these with plasterboard.. I need to do this in my kitchen..

[@Onthetrowel]

Sure, not much to them really mate, you just cut it to the right size and nail them in. Try a d push them ontthe outside skin when nailing them to the inside skin as you can only fix one side so by pushing it you basically wedge it so it can't flap around

[@bobfish7699]

@@Onthetrowel Fantastic. As soon as you mentioned them on the video my ears pointed north. I didn't know these existed and still figuring out how to close the gap. Thank you so much for replying so quickly. Bacon sarny on me!

[@halstirrup]

Which Darby are you using . Looking to get one but reviews in Screwfix and tool station are negative.

[@Onthetrowel]

Doesn't need to be anything fancy, just look down it and make sure its straight. The negative reviews will likely be from people that struggle to use them. I'm sure mine is a "benson hand tools"

[@halstirrup]

@@Onthetrowel cheers mate!

[@garywheeley5108]

Ive a 6ft x6 " derby always struggled with it and used a straight edge instead how big is yours i m thinking mines to big thoughts please Craig..🤔

[@Onthetrowel]

You will get a better job with a bigger Derby. I'm using a 4ft in the video but only because I was working in a shoe box 🤣

[@8evvied]

My Dad was a plaster for years and as a kid I’d go help him on small weekend jobs and get paid in sweets on the way home, I haven’t ended up plastering myself and he’s since stopped too as he’s getting a bit older now. Watching your videos is fascinating, it gives great insight into the trade and highlights how skilful it actually is….but I have one question though - Are you a red or a blue ⚽️haha?

[@Onthetrowel]

I don't follow football my mate, sorry to disappoint

[@8evvied]

@@Onthetrowel Haha nah it’s better than being a red

[@Onthetrowel]

Haha, oh and thanks for the lovely comment, it was nice to read. The good old days eh 🙂

[@andreyutzu9421]

Hi. Is there a reason why you wouldn't put sand and cement on low suction backgrounds? As in applying SBR, let it dry and then S&C. Thank you.

[@Onthetrowel]

So bonding coat is light, sand and cement is fairly heavy. I'm not saying it wouldn't stay on if it was thin but I wouldn't like to guarantee it. Probably not worth taking the chance. It's the same with hardwall, it would probably be OK but we have a product that is specifically for it. Don't fancy taking any chances when my tiles have cost a small fortune 😂😂

[@andreyutzu9421]

@@Onthetrowel I think I understand by what you mean with low suction background. I've DIY my render on bare brick and blocks and applied SBR but did not let in fully go dry. I applied S&C on the fairly wet SBR so I could get a better adhesion. I've also done my render mix with water and 3 parts SBR. Hopefully nothing wrong with that and the render won't start falling. I also thought about the whole thing falling which is why I'm going to stick XPS boards on top of the render with adhesive in the bathroom and mechanically fix each board with multiple concrete screws. I just wish I knew some tips when I first started but the internet is so big that I don't know where to go for information. Wish I had someone like you I could ask haha. Thanks for replying

[@davejohnwilliams1]

We need an update on the bathroom progress please 😊

[@Onthetrowel]

This is it... this is my bathroom mate 🙂

[@davejohnwilliams1]

@@Onthetrowel Sorry didn’t realise 😂 Are you anywhere nearly finished. If your wife is anything like mine she hates any mess and would expect it all to be done in a day 😩 It took me 6 months to do the kitchen, nearly got divorced 😂😂

[@Onthetrowel]

@davejohnwilliams1 me an you are very similar 😂 My wife is constantly on my case... the plastering always takes me forever to do because I hate doing it on my own house for free 😂😂😂

[@gorringeman]

Why do you work from right to left is it the same principle as rendering? Do you dig into the plaster a bit when ruling off? I'm an old fk'r now but was never that comfy doing this. I always tried to do this in one hit and would get tearing every now and then, you've given it method, great video mate

[@Onthetrowel]

Thanks mate. Yes, right to left to help maintain thickness and not drop as much. I dig in on the first. Two passes with the rule but the second two should just be a very light pass over mate

[@gorringeman]

@@Onthetrowel Will you do a video with a one hit? I don't think this is covered enough

[@petespencer5260]

Look forward to the video on that ceiling feature Kirk 😀

[@rockroll456]

👌👌👌💪🏻

[@burt93]

I always thought you wasnt supposed to use bonding where ever there is alot of water traffic. Take it its fine then 😊

[@Onthetrowel]

It's all gypsum based plaster my mate. So that includes if you skim your bathroom. Or even if you use plaster board. All you need to do is use a shower tanking kit before you tile. Which by the way is standard. That said though, if water was getting behind my tiles then I'd be more worried about that than anything else. Hope that makes sense mate. The other option is to use sand and cement as it will withstand water but as I said if the water is actually getting through to the wall then you have already got a bigger problem mate

[@burt93]

@Onthetrowel yeah suppose if all jobs done correctly then water should not be touching the bonding 👍

[@nachobanditchannel]

If you decided to do bonding on the window wall instead of boarding it, would you just bond straight over the lintel too?

[@Onthetrowel]

No mate, I will blue grit first. I will still have to grit it though for the boarding adhesive

[@nachobanditchannel]

@@Onthetrowel nice one, cheers Kirk 👍

[@galahad6001]

Layton .. is full of beans ah 😅😂

[@Onthetrowel]

He's full of something mate 🤣

[@jamiemartin1953]

NEVER use bonding in a bathroom or any area with high moisture. It becomes damp and causes issues

[@Onthetrowel]

NEVER pay attention to someone who doesn't know what is happening on the job. All gypsum based products will get damp in wet areas unless they are waterproofed with a shower tanking kit. So that's also, hardwall, board finish and multi finish to add to your list aswell as plaster board 👍

[@Danme1987]

Never seen grey bonding coat?

[@Reaper954]

Hello Kirk that looks like your bathroom ??

[@Onthetrowel]

Correct 🙂

[@ianturner8459]

Scratch with Bonding then float with hardwall . Much nicer to use if you don't mind the smell of eggs 🫢

[@Onthetrowel]

I like your thinking mate 👌👌 that bathroom has smelt worse than a bit of hardwall 😂😂 trust me 🤮😂😂

[@ianturner8459]

@@Onthetrowel 😂

[@martinaxford47]

Why is your bonding grey? The thistle bonding I've always used is pink closer to multi in colour. It can't be longer than a year since I've used it have they changed the colour?

[@scott2386]

Depends where it's mined that's all

[@Onthetrowel]

Different British gypsum plants put out Different colours of bonding coat, it's either pink or grey, just depends on where you are in the country pal

[@martinaxford47]

@@Onthetrowel ok that makes sense I'm down in Cornwall

[@tobybarker6808]

when its time to skim those walls, I presume it still needs PVAing?

[@Onthetrowel]

So if you skim it the same day then it's fine and you can get straight on with it. (This is the best way) If you leave it for more that 6 hours then good chance it will need sealing again because it will start to dry out and the when you put plaster on the wall it will take the moisture from your plaster

[@allenmccormack24]

Always listen to ur dad

[@allenmccormack24]

I dont really know the difference between sbr and pva tbf,I know one sits longer that's it

[@whippetRalph]

Did it vacuum it?😂👍

[@UncleNewy1]

When you showed that the walls had set at different speeds because of the dirty water, the wall with the shower fittings didn't have a key, but then the next day, it did. Why?

[@Onthetrowel]

I let my apprentice have a go at floating up as he'd never done it

[@pauledgar6086]

Perfect kirk but your to young for old school lol good job mate

[@scottfisher661]

Always key gypsum base coats British gypsum says a light key must be applied prior to skimming it says on the installation guide for plaster finish will not stick to non keyed base coat seen it too many times steam paper strippers will bring it off if not keyed and before anyone says I’m wrong look it up yourself

[@Onthetrowel]

Is that you dad 😂😂😂

[@Onthetrowel]

This man is partly correct. If you download the white book installation guide then it will say to light key (devil float not wire scratcher) but that section of the book hasn't been updated. They used to say it on the old bags but they changed what they said when they updated the bags as they since released its not necessary (they must be watching my videos 😂😂) So in the above instance thus man is correct. Now when it comes to delamination (finish coat coming away) I've done a few tests on this as me and my dad constantly argued over this. I will do another test and film this at some point. The reason it for the delamination is all to do with how long you have left the bonding coat to dry. You need to skim over it the same day or make sure you have soaked it to control the suction, or sealed it. But if it's pulling in then that's what causes bond failure. I hope that clears it up abit for you, like I said, I will make a video to demonstrate this in the future. One though to leave you with. When you apply bonding over a painted background or a smooth concrete, how does it stick? There's no key... the suction has been controlled. That's is how you keep it on the wall. Suction control is essential. Even with a key, if you skim it and it's to dry then it will come off easily as you have said. That's the problem mate

[@scottfisher661]

You are right it does say on bag to smooth with a wet trowel. But this didn’t sit right with me I’ve been plastering 35 years used to teach it for a few years as well and I’ve seen delaminations occur when removing tiles and stripping wall paper when base coats haven’t been properly keyed. Finish doesn’t stick to smooth bonding you may get away with it sometimes. So I contacted British gypsum today and they said 100% bonding base coat needs to be devil floated with a key before finish is applied . What it says on bag is just to flatten it before key is applied . I will admit it doesn’t say this but you’ve interpreted it as a key isn’t needed . Which they assured me it does . Sorry if I’ve come across as a bit of an ass but when a lot of young inexperienced plasterers watch your channel and take your word as law I felt it necessary to check to see if I was in the wrong when all my experience tells me all base coats need a key .

[@Onthetrowel]

They are just trying to cover their own bums mate. When you reskim a wall do you have a key? I bet if you ask British gypsum then they will say you need to use thistle bond it because PVA or SBR isn't good enough. But we know it is. Don't worry, there's more than one way to skin a cat. I always leave it smooth and my dad always keyed it. I've done hundreds of jobs like this and never had an issue. I wouldn't worry about a it of damage caused when removing tiles because I've never seen anyone take tiles of and the job not need plastering. I appreciate you have taken time to be diligent and check specifications etc... I also recommended everyone to start using sbr as a primer/sealer even though it's not designed for that. That works a treat aswell 😃 Oh if I might add one thing always always key sand and cement when your skimming over it. That will just fall off. This I did learn the hard way 😂🙈

[@Mitzy-0409]

Kirk Am I colour blind or is that grey bonding coat??

[@john_knee_pee]

exactly what I thought, unless it is a different type of bonding? I notice how he kept saying bonding coat lol

[@electronbox]

Grey & Pink bonding are essentially the same product but from different quarries

[@Mitzy-0409]

never new that, top work as always Kirk very well explained

[@zlock97]

Nkt sure how true it is but bondings not meant for bathrooms/ wetrooms?

[@Onthetrowel]

It's fine mate, the walls will be waterproofed with a kit before tiling so they will never get wet 🙂

[@m.c.SHoppIng.cenTrE]

Bonding coat is fine, only on outside, single skin walls is it a problem with drawing in moisture from outside

[@Onthetrowel]

This man knows the script ☝️☝️☝️

[@rustybrownstein8985]

So do I, plaster is Hygoscopic.

[@m.c.SHoppIng.cenTrE]

@@Onthetrowel this would make a good topic in one of your livestreams mate, my customers have looked on in horror as i've started hacking away the corners of their newly plastered room before i can start tiling, it would be a pleasure to come in after yourself bud. :)

[@lolnatt4583]

44 years a spread and Im with your dad on the devil float argument 😁

[@Onthetrowel]

He'll be made up 😂 Us younguns are always trying to cut corners, that's all he says 🫡

[@lolnatt4583]

@@Onthetrowel great videos mate! Keep it up. We never stop learning. Great that you are teaching the tricks of the trade and passing your knowledge on. 👍

[@Onthetrowel]

Thanks mate

[@FreddysHamster]

​@@OnthetrowelSame old guys that used to say lager was a p...fs drink and bitter was the thing lol 😂 When at the time carling was about 4.1% and Tetley's 3.2 😂😂

[@scottfisher661]

We are going to have to agree to disagree 👍 thank you for the reply’s

[@Onthetrowel]

And that is how adults handle disagreement. We both think we are right but we haven't fallen out, called names or tried to belittle the other. Scott I believe you are a good man and a good tradesman. I appreciate your advice and although we don't agree it's been a pleasure talking on the matter. I'm sure we will have more conversations in the future on perhaps things we do agree on or things that maybe we don't. Either way I look forward to having the interaction. Have a great week mate a d thanks for supporting my channel 😃👍

[@scottfisher661]

that is something we both agree on too much hate when communicating online have a good week also

[@pauledgar6086]

Give me 2mins il be there in a minute lol😅

[@waterboy8999]

Top quality work Kirk. Now introduce your daughter to the Dyson.

[@Onthetrowel]

They just tell me that's farm life. It's shavings and hey from the stables. Just lazy mate. I keep my van cleaner and it's constantly full of plaster dust 💁‍♂️😂

[@waterboy8999]

@@Onthetrowel haha! I now, mine used to be wood dust mostly but I kept the cab clean, plaster dust is whole different story! Love the channel mate, wish I had a wall to plaster. Is universal one coat still available? That's what I learned on 20 years ago, I'm a joiner.

[@MARTINA-gc3tq]

Tobacco flakes or biscuit crumbs……

[@davidmorris6278]

Just had a so called Plasterer in the rectify some wonky walls and. I'll send him this because his work is joke.

[@apollocreed85]

Can you let me know at what point i eat the pot noddle before i rule

[@Onthetrowel]

Life of a spread, eat on the go

[@apollocreed85]

Was the best bit of the video I find hardwall gets me hungry.keep up the good work brother

[@Onthetrowel]

Cheers mate

[@cag9284]

They don't teach fu*k all these days, silly little 4-5 day college courses..worth shit.