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by rynhardt
Tue Jul 17, 2018 10:34 am
Forum: Hydrofoil Builders
Topic: Cutting a new mold for a foil
Replies: 12
Views: 546

Re: Cutting a new mold for a foil

I've used Smooth-On Ease Release in the past but didn't like it. I found it too slippery for hand layup as the wetted fabric moves around very easily and doesn't cling to vertical areas and slides down.
by rynhardt
Mon Jul 16, 2018 10:38 pm
Forum: Hydrofoil Builders
Topic: Cutting a new mold for a foil
Replies: 12
Views: 546

Re: Cutting a new mold for a foil

I have used PVA. The problem with PVA is its hard to fix mistakes. Any runny spots, or a bubble, or a piece of dust that lands on it is there for good. I like waxes because I can buff out any mistakes. For sure, a polished wax surface will give a slightly better finish, depending on how nicely you ...
by rynhardt
Mon Jul 16, 2018 6:38 pm
Forum: Hydrofoil Builders
Topic: Cutting a new mold for a foil
Replies: 12
Views: 546

Re: Cutting a new mold for a foil

A good mould release schedule on a gel coat mould would be 6 layers of carnuba wax (wax on/wax off) and then a layer of pva release agent. On HDPA you may need less layers of wax. The pva forms a thin sacrificial skin which dissolves with water when you remove the cured piece - highly recommended if...
by rynhardt
Sun Jul 15, 2018 9:15 pm
Forum: Kitesurfing
Topic: Trouble finding board after crash
Replies: 19
Views: 1089

Re: Trouble finding board after crash

Hey guys , another newbie question. So yesterday on two different occations on very minor crashes I had a tough time finding my board, in choppy water its tough to find a board thats upside down , luckily both times I was fairly close to shore so I body dragged in to shore, spotted the board and th...
by rynhardt
Sat Jul 14, 2018 6:48 pm
Forum: Kitesurfing
Topic: Concave or Flat for Lakes
Replies: 5
Views: 528

Re: Concave or Flat for Lakes

Remember that on a flexible board the rocker will flatten more under load. You'll get a more realistic idea of the rocker by standing on the board on a flat surface. Unless you have a really deep concave, it will have negligible effect, apart from stiffening the board. For a softer ride, flex wins e...
by rynhardt
Mon Jul 09, 2018 5:25 pm
Forum: Kitesurfing
Topic: Question about boots & progressing
Replies: 10
Views: 2683

Re: Question about boots & progressing

Hey guys, quick question about boots, im currently riding a cab xcal 141x43 with straps at about ~80kg/175lbs, it seems hard at times to hold the edge/go upwind consistently. Haven't been kitesurfing that long, started earlier this year, but i've been riding wakeboard at cables since ~2009. Anyone ...
by rynhardt
Sun Jul 08, 2018 9:12 pm
Forum: Board Builders
Topic: Board infusion timelapse
Replies: 14
Views: 6340

Re: Board infusion timelapse

I've finally gotten around to filming the core prep.. here's a short boring video :lol:

by rynhardt
Sun Jul 08, 2018 6:22 pm
Forum: Hydrofoil
Topic: Need suggestions for repairing a carbon fiber wing
Replies: 4
Views: 2923

Re: Need suggestions for repairing a carbon fiber wing

Looks like the wing was made in two parts and have split on the seam. Just put a bit of epoxy in the crack and clamp the two parts together again, wipe off the excess. For a stronger result you can put some reinforcement over the seam. Either glass or carbon or maybe even aramid if you want toughnes...
by rynhardt
Wed Jun 27, 2018 2:22 pm
Forum: Board Builders
Topic: Lightwind kiteboard build, planing ahead
Replies: 17
Views: 5147

Re: Lightwind kiteboard build, planing ahead

First .. decide why you want to build your own board. If you enjoy the construction process, great. You will get the opportunity to work with new materials and build new skills. You may or may not end up with a great board. If you just want a different board, it will be cheaper to just buy one or ev...
by rynhardt
Tue Jun 12, 2018 11:23 am
Forum: Board Builders
Topic: Acrylic spray paint question
Replies: 2
Views: 1757

Re: Acrylic spray paint question

Your grey paint is probably fine, especially if you did the abrasion with 300 grit and then cleaned it. Primers generally provide better adhesion to low energy surfaces, and they seal porous surfaces. If your grey paint looks smooth and you can't scratch it off with a fingernail then it's most likel...

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