Ep016 Foam core installation on Catamaran Hull Sides

[@cristsiebenaler]

Wow, how well did that go?!?! Even with all the cooks in the kitchen. This reminds me of every major project with my family, you can have everything worked out perfectly, and then friends and family will come in and try to tell you a better way to do it. Overall great result as usual. So amazing to see this. Thanks for bringing us all along.

[@youtubynotme]

We have bobcats here in Idaho too. I did not know they were capable of breaking boards. Gotta new repect for them, i have.

[@jmalte4702]

Amazing..... never would have thought one could do this. It’s all in the spray gun.....

[@LifeOnTheHulls]

It is an incredible piece of equipment.Thanks for watching.Ross

[@bronco351mal]

Fantastic informative videos! Just spent a hot Brissy Sunday indoors watching every single video! Amazing effort!

[@LifeOnTheHulls]

+Todd 'n Nancy. Hey guys.I can think of a million things I would rather do than spend sunday with Rossco.Glad you enjoyed the vids.My cat mould came from near you as it was once the hub of yacht building in Steiglitz and Coomera. Stay tuned it's gonna get messy.Cheers Rossco.

[@bronco351mal]

Hey Rossco, that particular Sunday was bloody hot up here so stayed inside in the air con and came across your videos which as a house builder renovator i found them fascinating as to how the fiber glassing is all done! Know Coomera area well, we launch our boat from Horizon Shores now and then. Rudi Mas hasn't changed in 50 years I reckon, we are sure we can hear banjo's playing every time we pass it in the boat!! (-; Keep up the good work!!

[@johnchallinor2990]

I worked in the boat building industry about 40 years ago. Instead of grinding the foam core, I used an electric planer. It saved about 3 days of grinding.

[@LifeOnTheHulls]

Where were you when I needed you most Johnny.Hah.Great tip will be doing this on the the deck build for sure.Legend.Cheers Ross

[@rustie4242]

G'day Ross, happy new year..great to see your progress, it's looking good. Cheers Russell.

[@LifeOnTheHulls]

Thanks Rustie, hows your baby going, such a monster effort you must be nearly there. All the best Ross.

[@nickcooper14]

Great to see you back into it..

[@LifeOnTheHulls]

Thanks Nick, haven't really stopped but certainly slowed up with the warmer weather and a lot of Sea Kaykaing going on. All the best buddy, many more episodes to come. Cheers Ross

[@panther105]

Twin heat guns....That has to be a first on KZbin!!!. Brilliant....

[@LifeOnTheHulls]

+panther105 Haha.I actually saw this year gun idea on KZbin just can recall which foam core cat it was that it was used on.All the best Rossco

[@mickcoomer9714]

The adhesive you used for the foam is similar to the stuff that we use on kit cars for bonding on panels. We refer to it as “ baby poo” 'cos it gets everywhere. I’ve had it in my eyebrows.

[@LifeOnTheHulls]

I too have had the stuff everywhere, I can totally relate. Cheers Ross

[@18twilliams]

Thats some serious strong construction!

[@LifeOnTheHulls]

It certainly got the strength and the effort that it took to bond that friggin foam was eye opening, but I worked it out and had a better run on the Port side.Next episode buddy, cheers Rossco

[@deanwinsbury]

Enjoying watching you work ... awesome attention to detail and so many different skills needed. I totally underestimated what this would take to do, good luck with it all, looking forward to the next installment.

[@ArcticSeaCamel]

Excellent work! Can’t wait to see more!

[@LifeOnTheHulls]

There is always more, about 4 months behind , deliberately don't want to bare my cards all at once, then I would be under too much pressure to satisfy the insatiable demand, ( I wish ). All the best Rossco

[@bobboo1319]

Excellent videos. Thanks

[@Rooneycgs]

Love what your doing from 🇬🇧

[@LifeOnTheHulls]

Thanks Rooney,good to know you are tuning in. My wide is a Brit, I wish she loved what was going on here, never fast enough progress, Janet just wants to go sailing, but I may have a short term solution for that , stay tuned Buddy. Cheers Rossco..

[@bophoto]

Great vid, been looking at modern foam-core yacht's and wondering what exactly that means, now I know exactly. and learned so much. laughed out loud when you wiped the latex gloves in the t-shirt before handling the foam board, clearly a trick of the craftsman. Bigger question, where ya get the mold, rental? Hmm should probably be watching some of the earlier episodes. PS sorry bout ya shed pole, glad it could be fixed.

[@LifeOnTheHulls]

Bo Lorentzen Thanks for the comment Bo.Funnily enough the t shirt is a Melbourne Storm Rugby League footbal team so no great loss.I support the local St George Dragons.There is no reason why there should be a League team in Melbourne Victoria.lol

[@doppler3237]

just great videos, thank you so much

[@LifeOnTheHulls]

My pleasure, such a long time ago now, feels like an age, actually it was an age ago!!. Cheers Ross

[@CombatFlying222]

Alright! New year, new video! Cheers!

[@LifeOnTheHulls]

I am trying to bash some more out but time is critical factor with 4 project running simultaneously, more on that in future episodes. Cheers Rossco

[@bluebassboy32]

M8 many happy New Years to you and tha fam...glad yr back to puttin up vids...hope to see ya finish tha yatch this year bud...whats her name SV bloody long to go?? Or maybe a little accadacca...long way to top..🤣

[@LifeOnTheHulls]

Marcus, I simply can't name her yet,she has no character yet, just a lot of my skin, have had a crazy period with christmas and the Sea Kayaking "off the chain" lately. Can't complain I have the two best jobs in the world. Hows your plans going, any movement yet. Cheers Rossco

[@daedster1]

Mmmmmmmmmmmm S/V Skin.....?

[@cory0702]

Man its going to be strong

[@thaiiexpat10]

What is the added value of the foam to the inside of the Hull? - Structural? - Vibration & Sound deadening? - Insulation? I ask this because the insulation becomes a divider between the interior dividers and the exterior of the Hull. Right? Seems like all structural connections should go from interior bracing to exterior layer of the Hull Fiberglass. No?

[@LifeOnTheHulls]

Hey buddy.Foam is a structural component as it forms a bridge between laminates thereby increasing stiffness whilst reducing significant weight. It further adds to insulation both thermal and noise and provides a rot proof core for added longevity.Cheers Rossco

[@dudeleboski2692]

Mate, that looks really laborious. What do you charge per hour?

[@chikobato7217]

Hello again, good work and very good "how to.." videos. One question on this one, why would you glue the foam boards, they are not going anywhere as they will be embedded in glass?

[@LifeOnTheHulls]

Chiko, Thanks for the comment. The foam core is required to be adhered in all cases as it is required to be held in place before any lamination can occur. In my case as I working alone, to simply place the foam in place would guarantee movement or dislodging by the time I get around the laminating over the top of the surface. Even in an infusion process the foam is held on with a film of spray glue that hold vertical surface foam and contoured foam and the placement is absolutely critical for correct engineering. That said, Australian Maritime Safety authority requires the foam to be glued with a specialised paste ie sealite, as well as hot coated with 300csm and resin catalysed at between 2 and 2.5% to set off both resin and sealite guaranteeing a secure bond or the foam would simply lift off. I was able to glue down foam and leave for extended periods until I got around to completing the covering layers, which then formed the penetrating spikes and grid score resin attachments for the upper surface.Compression roller then consolidates the csm and sealite into the foam perforation ensuring a mechanical and chemical hold. All in all it has worked out to be labour intensive but perfect result with zero chance of delamination. Cheers and thanks again for joining in the fun. Rossco

[@icelandviking1961]

I think I missed this one first time through. Adverts watched.

[@mattiassandelin9874]

Hello! are you using vinylester with wax in it every layer, exept the last layer, or is the wax always inn? and why do you use vinylester instead of polyester?? in sweden the polyester resin is much much sheaper than vinylester, can I use that insted?

[@JCrook1028]

He used the vinylester because it is stronger and more resistant to water osmosis.

[@clarkd1955]

I like it a lot!

[@LifeOnTheHulls]

Good stuff David, appreciate your feedback, having fun making the vids and the boat.Cheers Rossco

[@cw3339]

No protection suite? I get the itches just watching you work with fiberglass!

[@LifeOnTheHulls]

I only need the suit when spraying and sanding substraas the itch only occurs when the glass is airborne as it is sanded or ground. There is no itch when laminating stitched cloth until one comes to sand or grind it, that when the fun starts and I am paranoid about the itch. Cheers

[@rainmaker3700]

I use to spray 2 part poly for tank waterproofing. What is your gun set up and what ratio are you spraying?? Thanks

[@LifeOnTheHulls]

Thanks buddy, really appreciate you watching my series, The gun sprays saturated polyesters and vinylester resin including gel coats.Ratio is between 1 and 4 precent catslyst which I can adjust dependant humidity or temperature.Resin is catalyzed approx 1nch from gun nozzle to reduce clean up and ensures accuracy and longevity of product. All the best, Rossco

[@rainmaker3700]

@@LifeOnTheHulls Thanks for the response! I found your tech video, Graco is the best in the business. Cheers!

[@blake3888]

Did you end up using the heat guns? Or were the clamps sufficient enough?

[@olivercarlin2650]

theoretically if you were speeding at around 60 mph and landing on water with a catamaran hull with foam core, Do you think it would survive the impact? weird question i know but there's method in the madness

[@olivercarlin2650]

The reason i asked was, I wanted to build an ekranoplan catamaran hybrid, check it out, definately get you over the seas quickly.

[@LifeOnTheHulls]

Oliver, I am not convinced it wouldn't handle the landing as the foiling catamarans are carbon foam core and they are cruising at 60mph at their fastest. Check out the sail GP site and superfoilers and they seems to be ok, I live close to the superfoiler builders and they are capable of speeds almost as high as that. I believe the rigidity is fine , the actual laminate would be the critical factor and reinforcement under tension as the inside of the structure would be prone to delamination due to the impact and compression on the other hull. Ross

[@olivercarlin2650]

@@LifeOnTheHulls Wow Thanks Ross, I could definately use the help of an engineer on the materials, I was thinking of using densified would which removes lignum from the wood reducing size and weight while also producing steel like strength, it's a relatively new method, then using a mix of fiberglass, carbon, kevlar or basalt as the last couple provide better impact resistance, i also thought wood does well when the fibers attempt to compress, I might be completely insane though and thinking nonsense.

[@olivercarlin2650]

@@LifeOnTheHulls something like this www.hypercraft-associates.com/Resources/Hoverwing%20HW2VT.jpg

[@LifeOnTheHulls]

Oliver.Emirates Team NZ have developed a foiling hydrogen powered chase boat that can do 50knots,check it out, that shows what is the future.I do worry for the marine life on the surface with foiling technology and the resultant damage to foils tendering them useless.Ekranoplan look very interesting.Definately carbon kevlar to balance rigidity with impact strength.I love carbon kevlar and use regularly.Ross

[@tomharrell1954]

Oh by the way that was a good dissertation on fiberglass assembly technology at least Masters Degree add a little vacuum bagging and bada bing Ph D level. LOL

[@LifeOnTheHulls]

Thanks Thomas , guy like you are certainly keeping me on my toes. All the best.

[@russellesimonetta3835]

This is a basically one man project! He has said bagging needs a crew of ten or twelve to do correctly. Each phase of construction is being signed of by the authorities.

[@markgotham5372]

....(someone switched the Spec's with a 300 Ton ...).....Just kidding Rossco....Lookin Really Good... ;-)

[@LifeOnTheHulls]

haha funny boy Mark, diggin deep in this one. Cheers

[@dejayrezme8617]

Seeing all this work I want to build a really big 3D printer than can print and mill foam and print using fiber reinforced resin.

[@LifeOnTheHulls]

Surely there will be 3d printed boats shortly in the future.Laminating although hard work is so satisfying.Cloth and liquid to form a structure still blows me away to this day.Cheers Ross

[@latitudeash]

You need to paintent that heat gun contraption 😂🤪

[@jayfixesthings]

I’m a dummy by what’s the foam for?

[@jacksbackable]

Jay Rummage strengthens the build, google foam sandwich construction, core between 2 laminates.

[@Guardian-oq6df]

I want to build a 32'-36' Catamaran, much like the 1988 crowther spin drift 38'. any tips on how I can get information on how to build a hull? I was thinking of just doing some thing in the video I linked with 5 lb vinyl foam that i linked. kzbin.info/www/bejne/haikc42KZ9V8pJo The hull won't be able to walk all the way up and down. only about 12 (3.6576 meters) Feet of the outer hulls you will be able to stand in and access from the cabin. The cabin will be smaller too about 12 feet long (3.6576 meters) and 8 feet wide. The total width of the boat Beam will be about 14 feet (4.2672 meters) Now my concern is if I can get the hull strong enough using the technique as follows. I figured I wouldn't need as much material since my boat would only be half the size of yours. inner Chopped Strand Mat: 1 1/2 ounce 42.5243 g Woven roving 18 oz or 510.291 gram (for flattest areas on the hull) Chopped Strand Mat: 1 1/2 ounce 42.5243 g 36 oz - 1200 gr/m^2 Triaxial fiber glass Chopped Strand Mat: 1 1/2 ounce 42.5243 g Foam core 3/8-1/2" Chopped Strand Mat: 1 1/2 ounce 36 oz - 1200 gr/m^2 Triaxial fiber glass Chopped Strand Mat: 1 1/2 ounce 42.5243 g Chopped Strand Mat: 1 1/2 ounce 42.5243 g outer I also want to Design a super structure through the hull like a skeleton. Combining old techniques with new. To hopefully reduce the costs of building a cat. www.fibreglast.com/product/Chopped_Strand_Mat_1_1_2_ounce_00250_1/Fiberglass_Mat www.fibreglast.com/product/Woven_Roving_223/Fiberglass_Fabric www.fibreglast.com/product/vinyl-foam-5-lb-density/Foam kzbin.info/www/bejne/haikc42KZ9V8pJo or if you have ideas on cutting costs with better sources that would be cool too. If all else fails ill find a $20k-$30k cat and fix it up haha. I guess building one I can buy the parts little by little. Instead of all at once.

[@tomharrell1954]

Mate what are you going to do with the mold when you get the boat out?i I would like to rent it, for one boatl

[@LifeOnTheHulls]

Hey Thomas, I am canvassing a lot of options and have basically committed to a fews years of storage whilst I decide whether to go again, make a parts kit, lease out the mold, or a couple of other ideas are coming across my desk over the past few months. Whatever it would be likely to be local, diue to the logistics, but certainly want to see it in use. All the best Rossco

[@63256325N]

Well done. Thanks for the video.

[@LifeOnTheHulls]

Thanks Duncan.