<
We tried composite glass fiber, denim and resin.<br>
Here’s two glass fiber that have different density.<br>
We made three different test coupon that have different layers like this.<br>
To make test coupon we made frame with pink foam like this.<br>
And we put gesso to prevent heat. And wax as release agent.<br>
Then mix epoxy resin part A and B.<br>
Hardener and main material mixing ratio is 13:100 by weight.<br>
And put first layer and resin on it with brush.<br>
And repeat put denim or glass fiber and resin on it.<br>
After overlap every layers done. We put anvil on it to give pressure.<br>
We also tried 3D shaped composite.<br>
Carve pink foam with trimmer and put 5layers like denim-glass fiber-denim glass fiber-denim.<br>
After all the layers done, we use vacuum bagging to stick well. we did it like this.<br>
It cured well and has hard surface.<br>
These are the outputs.<br>
Three test coupon have different layer each.<br>
And they have different rigidity.<br>
Yongwoo’s coupon is strongest, followed by Sunghyun’s and Seunghwan’s.<br>
But there is variables at proficiency and we think that’s more important fact.<br>
]]>