View Single Post
Old July 16, 2012, 02:52 PM   #13
Join Date: March 4, 2005
Location: Ohio
Posts: 11,374
Good point. In general, the more filler you have, the less shrinkage there is during curing. Once cured, the cross-linked molecules in a clear epoxy theoretically should keep their shape, but the reality is that the small amount of shrinking that occurs during curing puts the hardened resin under a certain amount of stress that will tend to relieve itself over long periods presenting as additional shrinkage.

Also a common mistake is thinking that epoxy that has set is nearly cured. Very often an epoxy that takes just a couple of hours to set will take a week before it's fully hard, and you don't want to be shooting it before then or it will be prone to loosening up and failing prematurely.
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member
Unclenick is offline  
Page generated in 0.04264 seconds with 7 queries