ORIGINAL: joco1
so let me ask this im glueing together the wings on a sky raider m 1 would i be better off to get 3 hour epoxy to be sure of a better hold also is it a good practice to always put milled fiberglass in your epoxy? and lastly do you always mix your epoxy 50/50 or a little more hardner or a little more resin? starting to build my first plane so sorry for the kinda simple questions but i just want to be sure!!!
First of all, you don't have to use 3hour to get excellent results from epoxy. It's kewl to use it and ought to penetrate better than 30minute, but that's about it. Somewhat better. But both are hugely better than 5minute.
As for putting milled fiberglass into epoxy to give it a better hold, it doesn't. Glass, kevlar, carbon fiber, and the likes are used to produce structural support or provide additional surface thickness. The glue is what holds things together.
You mix epoxy exactly the way the instructions say. As well as you can, get the proportions sized according to the instructions. Anything else wastes epoxy and can cause problems. The two parts are two different materials that are produced at the factory to cure perfectly if you get their proportions close. They won't do better mixed incorrectly.
It's good stuff. Use it the way the instructions say and it'll do wonders for you.