To much resin

[Cannibal]

i was under the impression that there should only be enough resin to saturate the fibers. When i was glassing a sub box that molds to my trunk i used more resin then needed to saturate the fibers and it turned out super solid but brittle and very heavy. When i added a layer of glass to a wakeskate project im working on, i used a roller and soaked up any extra resin and it felt the same weight wise but was super flexible still.

You are correct. In fact there is an exact amount of resin needed to wet out x amount of cloth. People who make a profession out of this will calculate the amount of resin needed for that amount of cloth and use no more. You want the least amount of resin possible to get the job done.

 

[blaster4life]

where is Trinity.... he will tell ya whats up

 

[mattrocket]

Had to lay just a bit more glass tonight so I should be turfing in the morning.

 

[cleetus]

the ratio of cloth to resin should be 1:1 for best strength/weight. So if you use 300 grams of cloth, you should use 300 grams of epoxy...

 

[WaveDemon]

i was under the impression that there should only be enough resin to saturate the fibers. When i was glassing a sub box that molds to my trunk i used more resin then needed to saturate the fibers and it turned out super solid but brittle and very heavy. When i added a layer of glass to a wakeskate project im working on, i used a roller and soaked up any extra resin and it felt the same weight wise but was super flexible still.

if that was true you could make a boat with one layer of 8oz and a whole lot of resin. you make strength with multiple layers of cloth. you can weigh out the cloth and resin ahead of time to get the proper ratio.

 

[NathanMoore]

I also beleive the ratio is 1:1.

The way I do it is this...First I take a peice of vacuum bag plastic (or any other plastic film I have around) and lay it over my work bench as big as needed. Then I take another peice the same size and with a sharpie draw out the shapes of all the peices of cloth I need. Then I cut a sheet of cloth big enough for all the peices and weigh it and lay that cloth down on your plastic covered work bench. Next measure an equal amount of resin. Pour the resin equally over the cloth, and lay the other sheet of plastic over it, making sure the side you drew on is up. Now take a plastic autobody squeegee and squeegee it untill every stand of cloth becomes completely transparent. You do not want ANY white strands. It usually takes a very long time and is a big pain to fully saturate all the glass with a 1:1 ratio, so I usually mix a tad bit more resin and just squeegee the extra resin out of the edges after all the glass is saturated. Now once the glass is perfectly impregnated, with a sharp pair of scissors cut out your pieces. As you need to lay the pieces down you can easily peel the plastic off both sides without any or very few loose strands.

Makes for a super strong composite ratio, and very very little mess. I dont even bother taping off surrounding areas because your not dripping resin everywhere.