Hi,
What would be the best fiberclass cloth/mat for molding a hull from scratch?
Since there is lots of different fiberglass types, I need help choosing. (Weaves, density, ...)
I am planning on using vinylester resin and my plug will be made of wood.
Thank for your help
This is a scaled down version of what you are trying to do. Same process built thicker.
http://x-h2o.com/index.php?threads/baby-jet.179924/
A lot of work goes into a plug. Rather than scratch, might I suggest modifying an existing ski that is close to the size and shape you want yours to be.
You mold should be twice as tick as your part, give or take. If you decide your part is going to be 3 layers of 1208, your mold should be around 6 layers.
If shrinkage isn't a major concern, you can save a few bucks on the mold by using low profile poly resin over vinyl ester.
I prefer 1208 for just about everything, but I use just about everything as needed. a layer a 3/4oz chop can be a good 1st layer to ensure you don't get any air between the gelcoat and the glass causing the gelcoat to crack. After that, you can use anything. Lighter fabrics are more pliable. You might start with a layer of 3/4, then a layer of 1-1/2 or 1208, then bulk it up with some 24oz cloth.
As for the part, I can't say. I haven't build a hull. It also matters if you are going to vacuum it and if you are using core materials. Hopefully someone can chime in, but most of the hull builders consider their layup proprietary and will not share that information readily.
