Make a fiberglass fan shroud
(→General Comments on Fiberglassing) |
(→General Comments on Fiberglassing) |
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The woven materials come in a confusing array of weights and weave patterns, all with a special purpose. | The woven materials come in a confusing array of weights and weave patterns, all with a special purpose. | ||
| − | '''Woven Roving''' looks like your great Aunt's front door mat. It is woven with very coarse strands in a 90deg pattern and it's purpose is to build bulk fast while providing superior strength compared to chopped strand mat. It is quite thick and due to its weave and big strands doesn't lay around corners and doesn't bond well to other layers. It also loves to print through its weave pattern to ruin gel coats. It should be used in boat hulls, not car parts. If you insist on using it for building thikc parts, always | + | '''Woven Roving''' looks like your great Aunt's front door mat. It is woven with very coarse strands in a 90deg pattern and it's purpose is to build bulk fast while providing superior strength compared to chopped strand mat. It is quite thick and due to its weave and big strands doesn't lay around corners and doesn't bond well to other layers. It also loves to print through its weave pattern to ruin gel coats. It should be used in boat hulls, not car parts. If you insist on using it for building thikc parts, always lay it w/ alternate layers of 2oz mat to improve bonding. |
'''Woven cloth''' is the star of strong FRP construction. It strangely is sized in ounces per square yard instead of square foot and comes in weights from 1/4oz/sqyd to 10oz/sqyd. It comes in '''plain weave, satin weave, 8-hs weave''', other?, patterns. Get the plain, it's plenty strong and cheaper. I usually use 1.5oz. This is what you want for 99.99% of your high strength layups. | '''Woven cloth''' is the star of strong FRP construction. It strangely is sized in ounces per square yard instead of square foot and comes in weights from 1/4oz/sqyd to 10oz/sqyd. It comes in '''plain weave, satin weave, 8-hs weave''', other?, patterns. Get the plain, it's plenty strong and cheaper. I usually use 1.5oz. This is what you want for 99.99% of your high strength layups. | ||
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