Easiest technique for professional-level surfboard repair! Links to materials in description.

Steps: Sand, fill, sand, laminate (patch), sand, hotcoat, sand!
Laminating Resin:
fiberglasssour...
Sanding Resin:
fiberglasssour...
Q-cell Filler:
fiberglasssour...
MEKP Catalyst
fiberglasssour...
Fiberglass (4 oz)
fiberglasssour...
Hey Los Angeles/Orange County:
Upload a photo in the Rogue Wave app to get free quotes for ding repair, pay through your phone, and see a list of partner shops where you can conveniently drop off and pick up your surfboard!
www.roguewaver...
List of tools and supplies I use can be found here:
www.roguewaver...
Follow me on instagram :
@rogue_wave_LA

[@dr.jamesmunro]

This video was very helpful in that it taught me to not pretend i could ever do this and to bring my board to a professional 😂 Awesome work! You have incredible skill.

[@boscobaracus1823]

I got a tip for ya with the acid brush bristles. I use those things a lot for work too being a plumber. Whenever I get new brushes I run a thin cyanoacrylate glue down at the base of the bristles to keep em from screwing up my solder joints! Not sure how that glue affects the resin you're using but it works wonders for what I do. Best of luck!

[@Rogue_wave]

Nice I appreciate the tip, will have to try it out!

[@Branman345]

I love this and if you don't like that you can still see it you can just slap a sticker over it and it is still fixed. Very helpful and interesting at the same time. I would love to learn how to become a shaper.

[@jaceklanger7735]

The repair turned out great. And i find it a great video to display how to easily fix a deep ding on the board which is not on the rail, even though that would be rather similiar. There is one thing I don't understand. Why do you/we opt for a filler made from resin and foam pearls while fixing a Polyurethane-Foam board (if it is one). Wouldnt it make more sense to use Polyurethane to fill the gab, the density should be rather identical. Using a homemade mixture holds the risk of beeing more dense and much harder than the original material. We actually would compromise the internal structure of the board and may unbalance it ever so slightly. Would appreciate a qualified answer. ( You can buy white Polyurethane- in spray cans)

[@Rogue_wave]

I’ve always used it because its the industry standard. But I always like to try new materials (especially if they cure faster) does the polyurethane tube material expand and harden? I’ve used expanding insulating foam to fill big holes in EPS (on SUPs) and had great results.

[@jaceklanger7735]

Thank you for your fast response. I can't tell for certain. The traditionel yellow foam does harden to a point where you'll be able to cut it with a knife ( same as the board blanks). So i assume it would be the same for the white foam. Suppose you'll have to try it out first. Best to try it out on a piece of pu-foam, so you get some insight how the result would look like and how well it will stick.

[@lalaboards]

I always yes foam on foam . Resin and filler gets heavy after a while , but it’s fast and easier like he said .,

[@garrettkitchen8622]

Best repair videos I've found. The pneumatic sander sounds like I'm at the dentist, haha.

[@Rogue_wave]

Thanks dude! Glad you liked it. Don't forget to floss.

[@dudeleboski2692]

Rounding the edges on those patches will facilitate the sanding process

[@jeanann80]

Amazing skill you have. You are a perfectionist.

[@BananaEskimo]

Oh wow! You slather that on there big boy! I’ll be doing mine in a parking lot- you’re a lord

[@Rogue_wave]

It puts the resin on the skin of else it gets the sandpaper again

[@the_citoxe]

This was both helpful and interesting to watch. Thanks!

[@danielbiven434]

Good work, i like to tape off the patch to minimize adding weight and reduces time sanding. Your patch still came out perfect though!

[@Rogue_wave]

Thanks Daniel!

[@dmac5678]

When you lay the fiberglass patch down, how do you sand the patch flush without sanding through the patch?

[@Rogue_wave]

You feather the edges to make it look flush, then add another layer of resin and feather that too. It’s never actually flush, but to the human eye it appears like it is.

[@planofthenets]

Can I use sanding paper for all those times you had a machine

[@Rogue_wave]

Yep

[@geoffreyl_]

This video was super helpful. Thank you!

[@geoffroyhatty2567]

beautiful & satisfying

[@rdsrf]

Nice work really enjoying the vids! Glad you are staying safe with some good PPE while working. I like the flight suit...Pilot is your day job? Is there a reason for not adding resin to the edges of the glass patch? Does that make it easier to feather the edges?

[@Rogue_wave]

Nope I got that at an army surplus store 😂 thanks for watching

[@Gwosts]

Have you tried Solarez products, they require no mixing

[@fabriciodart]

Thanks for that! So I got a problem, when I put the filler, the original polystyrene are melting, a small hole turning a big empty hole! Tho fix if I had to put an expanding foam, but I got a delamination!

[@dudeleboski2692]

I hope you catalized the resin before adding the qcell

[@nadeemal-khafaji8138]

Do you sand a dip in the filler before applying cloth? what stops you sanding all cloth off?

[@Rogue_wave]

No dip needed. The fiberglass patch is always going to be a tiny bit elevated in the end, but shouldn't be noticeable if you are using 4oz cloth. The key is to sand the edges of the fiberglass flush with the board, without sanding into the original fiberglass.

[@siddude]

thank you, this is amazing.

[@user-qj2wp7xg4z]

Wet out all of the cloth, to avoid having to sand away dry cloth later!! Way more dangerously fine airborne glass particles than sanding wetted cloth that's cured. Those fine dry cloth sanded fibres will hang around your work area.

[@floridamike75]

Great job thanks man!!!

[@highcotton02]

You gave a pro tip that sanding resin is just polyester resin with paraffin wax added to it. Do you have a wax to resin ratio that I can use to make some sanding resin?

[@Rogue_wave]

Glad you caught that! It doesn’t have to be very precise. Just a dash of it in an oz of lam resin will work

[@KawikaDowney]

I thought I was the only one that used wax. Sometimes I use rubbing compound first then wax.

[@bipedalhominid6815]

Do you ever have issues using polyester resin to fix boards originally made with epoxy resin? I have multiple issues with the way you went about this lol. Good job tho !

[@Rogue_wave]

Oh ya. You cannot use polyester resin on EPS foam. Sorry dude everyone makes that mistake once! I have a full video on what resin goes on what foam if you want to make sure you don’t do it again.

[@theresaukaj1745]

I need to fix my Paddle boarding what should I use I have a big space empty inside please can you just help me what kind of thinks I should use thank you I’m going to send paper and stuff I just don’t know what kind of material should I use it

[@Rogue_wave]

Great question!! If it's a big hole, do NOT fill it with resin of any kind. Doing so will melt more of the foam! Instead, fill the hole with "Great Stuff Gaps and Cracks Insulating Foam" (can buy at home depot or on amazon). Sand it to the shape you need, apply a patch of heavy duty (6+ oz) fiberglass and epoxy resin. Once it cures, it should be rigid (you should not be able to make an indent by pushing your finger into it) if its not, apply another patch of fiberglass and resin.

[@Dogface1984]

Thanks 🤙🏽

[@jimelliott33]

Using a block instead of fingers and some guide powder would have avoided the lows but otherwise excellent video

[@aidanmyles2138]

Maybe explain what a block is, or what part your talking about, or what guide powder is, or what the lows is, and then it will be a helpful comment cause I have no clue wtf u just said

[@jimelliott33]

@@aidanmyles2138 a block would be a flat block in which to adhere the required grade of sand paper or wet and dry paper, guide powder or panel black is a black chalk that when rubbed on the surface you are flatting it will highlight the low areas enabling you to effectively sand down from course grade to fine grade and visually see the scratches so as not to not to sand down unevenly or blow through the applied glass epoxy layer

[@FourLeafGroverRL]

Do you sand it down below the fiber glass line before you put fibre glass on so it’s smooth?

[@Rogue_wave]

No, I sand the filler flush.

[@CorentinAuffret-carlo]

Hello ! how do you dose the microballoon in your first mix? I often feel like it's random. Have a good day,

[@Rogue_wave]

Just dump it in until you get the consistency you want. It’s not an exact science. Btw it’s qcell, slight difference between that and microballoons.

[@CorentinAuffret-carlo]

@@Rogue_wave thanks a lot for your response

[@Woopass90]

I found keeping PU resin in plastic bottles not the best option. I have steel bottles now with no issues. Great vid however.

[@Rogue_wave]

Thank you, will try!

[@dmac5678]

Not talking about the color but around the edge of the qcell there’s a distinct border. Almost where it tapers off, is there a way to blend it in or will you always see a hard edge?

[@Rogue_wave]

Good question, it depends on how abrupt the cavity starts. Filling a dent will leave a soft edge, filling a gash will leave a hard edge.

[@mylesmccarthy9210]

I've seen recommended to use a waxed poly resin for filler, and an unwaxed for laminating. Which do you use, and have you found the other necessary at all?

[@Rogue_wave]

Laminating resin + qcell for filler

[@chrism4334]

hay man nice vids i learn a lot from them. one question , when you lay the glass matt down you only wet the center of the matt, is this to keep the resin from running or easier to sand etc?

[@Rogue_wave]

Hey Chris, I find it keeps things tidier without using tape.

[@chrism4334]

@@Rogue_wave thank for replying, ok nice I'll give it a go on my nexted board and see how it goes for me. thank you.

[@Cuisinenomade1]

Is there a particular reason why you leave the edges of the cloth without resin?

[@Rogue_wave]

It keeps everything tidier. Essentially, it's easier to see where to grind and feather the edge of the patch. Plus it saves time and money as an alternative to using tape.

[@aidanmoran1016]

Do you still use Q-cell if its epoxy resin? Like is everything supposed to be the same, people just use epoxy sometimes because the have PU foam?

[@Rogue_wave]

Yep you can still use qcell with epoxy (I do, regularly).

[@bean3280]

Just wondering what you would charge for a repair like this?

[@Rogue_wave]

$50 on PU $70 on EPS

[@Rk29th]

Awesome thanks. Quick question, do you bother washing the brush with acetone or just throw away after one use?

[@Rk29th]

Also the drill attachment looks super useful, any details please?

[@Rogue_wave]

Hey Ron, yes I rinse brushes with acetone. Try using three separate buckets to clean your brushes. Bucket 1 = very dirty acetone, 2 medium and 3 is somewhat clean. By the time you rinse your brushes in all three buckets it should be clean enough to reuse. I'll get 3-5 uses out of a single brush.

[@Rogue_wave]

@@Rk29th www.amazon.com/NYXCL-Zirconia-Sanding-Removal%EF%BC%8CSurface-Conditioning/dp/B086Q3JLBG?pd_rd_w=8GGO7&pf_rd_p=61b537df-f2d9-4e2e-a3c3-e285057df2ab&pf_rd_r=91CGZGZMY6GVZ0RYV5T3&pd_rd_r=b511f184-f3c7-4e46-8c0c-67f6f89dd302&pd_rd_wg=kEXTb&pd_rd_i=B086Q3JLBG&psc=1&ref_=pd_bap_d_csi_bia_sims_prsubs_5_i

[@jovenray8771]

Great video! And what kind of material you used for filling the ding?

[@Rogue_wave]

Thanks Jovin! It's laminating resin mixed with Q-cell. Links to those products are in the description

[@patrick4625]

Nice.... 🤙

[@teanuir7201]

Hi, thank you for this helpful content. May I have the doses to prepare the hot coat please ? Thank you

[@Rogue_wave]

It's sanding resin and MEKP. Ratios can be found here: greenlightsurfsupply.com/pages/surfboard-building-information-sheets

[@tobyk3680]

hey what kind of respirator filters you use?? and nice video!

[@Rogue_wave]

fiberglasssource.com/collections/respirators-facemasks/products/half-mask-resperator-3m-7503-large fiberglasssource.com/collections/respirators-facemasks/products/3m-6003-organic-vapor-acid-gas-cartridge fiberglasssource.com/collections/respirators-facemasks/products/dust-filters-3m-pink-2-pack First is the mask, second is the filter I used to use for everything, until I learned that the dust filters are better for sanding (3rd link).

[@andreyflat]

$?

[@richarddavies-scourfield8413]

I never understand why people don't put resin on first and then the glass patch, stipple and apply more resin on top. Much better composite practice.

[@Rogue_wave]

Good point!

[@ogiepazzibugan2820]

How long does it take to repair it

[@Rogue_wave]

Can finish it in a day!

[@ogiepazzibugan2820]

@@Rogue_wave how many days to dry up waterlogged?

[@aidanrichards6046]

you have balls of steel using a drill with sandpaper on a board with that thin of glassing

[@Rogue_wave]

Now I use a pneumatic tool that spins even faster than the drill 😂

[@yakeparsons]

Tell me about that sander? Looks like a dentist's tool.

[@Rogue_wave]

Hey Jake! It's just a cheap pneumatic tool from harbor freight. www.harborfreight.com/air-tools-compressors/air-tools/air-angle-sander-93629.html

[@simonblower7280]

Never cut a square patch...

[@Rogue_wave]

Why?

[@simonblower7280]

Easier to sand?... Your ding looks perfect so maybe not making a difference..Does anybody else know?... Hey , great job..Its a thumbs up!.. I m just a hairdresser!₩

[@djizzah]

could have done it in a way that looked better and much quicker using q cell , solarez with some tint and you wouldnt be able to see it, your method is only necessary for structural points, rails tails noses, not on a large flat area on the bottom, didnt need all that and the repair was very obvious, with color matching you wouldnt notice it

[@Rogue_wave]

Interesting, I'll try this! Thanks.

[@randomschittz9461]

Where’s your video buddy?

[@95ern]

Eh I disagree. Solarez almost always cracks overtime. Not to mention color matching white is a pain in the ass and not always exact, especially with resin tinted board. If your board is glassed clear your almost always going to notice even if it’s color-matched because the tint is above the glass. IMO a large patch where there is a lot of foam missing is always a necessity.

[@ajdahun]

Solarez is what you use when you ding it on a surf vacation, and it's all you have/can find...

[@djizzah]

@@ajdahun done properly solarez can last quite well