Quote:
Originally posted by WebMasta33:
Ok, I just bought my radiator from Autozone  Anyways, I don't like the way the fitting are done, they pinch off at the connection. I wanna pull them off and put fittings in the other side.
So should I just solder a copper plate over the old holes? Or should I use some sort of epoxy?
--Second, I'm building a res tank for my water. What thickness or plexi or lexan should I go for? Should I just use pure silicone caulking?
--Third, I'm building my own waterblocks. Should I just tap out screw holes and seal it using screws with a oring? Or should I try to epoxy it?
Any answers are greatly appriciated 
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Epoxy in general is very brittle & will crack with continued thermal stress. Use a catalyzed urethane adhesive, or or find an epoxy that has a decent flexural modulus. Any slow setting, casting epoxy that you can find in most hobby shops will work. The JB Weld that most people use because it's cheap and easy to work with will fatigue and crack over time with thermal cycling.