A lot of great information on here about alternative fabrics that work well when vaccum bagged. Looking for fabric that can be done by hand. I've dug through all the modern laminates threads. Has anyone discovered a cloth that works well hand laminating that isnt fiberglass? I have recently discovered I have a pretty gnarly alergy (beyond just the normal itch) to fiberglass cloth, so looking to explore other options that dont require a bagging setup.
One of our regulars was working with nyon 6,6 in his layups with pretty good results. He'll probably comment here.
You can do vacuum bagging pretty cheap if it comes to that. It doesn't take a big complicated rig to do it.
https://www.sanded.com.au/collections/surfboard-fibreglass/products/100-...
www.sanded.com.au
Nylon or Hemp are a couple.
That which can be assorted without evidence was read in an illegal magazine.
with nylon, is there a certain strategy for hand lam? Should it be fully wet out prior to being laid down?
Yes
Most "cheap" plastic fibers like nylon, diolen etc.. Have low stiffness modulus and high elongation to break, should be use with elastic resin that have also lower stiffness. Ended with a flexible, stretchable stiffless skin, tough but soft so you need something to give some stiffness to skin to prevent buckling and over denting. A strategy could be to make a thicker multilayer skin with those fibers to gain flexural stiffness by thickness, each time you double thickness you increase stiffness by 8, but ended on heavier side.
Plastic fibers are light so they want to float over resin and they have lower adhesion to resin, easier to work them in vaccum bag.
Hemp, flax, cellulose fiber, basalt are more "like fiberglass".
...a point to consider is that with Nylon and similar sheets you will not obtain a perfect fade when you are doing a repair.
I agree with Lemat you need to stiffen the board with some of the alternative cloths. I also saw a video where someone on youtube did a "poorman's" vacuum where you just use release ply taped tightly over the finished laminate to squeeze out excess and hold down the cloth.
I would like to see that video. Can you link it or steer me in a direction to find it?
That which can be assorted without evidence was read in an illegal magazine.
It's video of Jimmy lewis that make a custom sup. He lam tightly a thin plastic at the end of fiberglass lam. When cured he pull of the plastic so fiberglass lam is flatter, need less finish.
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