Michael Barclay Posted October 17, 2024 Share Posted October 17, 2024 This is a huge subject about which a great deal has been written. Once these resins have fully cured, it is not possible to get a chemical link. You can achieve a mechanical bond, but the strength of the bond will depend on the quality of the workmanship, the area of the mating surfaces, and stresses to which the joint will be subjected. As a rough example, if you were to thoroughly abrade two pieces of cured epoxy fibreglass, each with an area of a foot square, you should get a decent mechanical bond. If, on the other hand, you tried to join two pieces of carbon fibre tube end to end, then without some form of reinforcement the resulting joint would have little if any strength. I hope my rather crude example shows that the design of the joint is as important as the resin used. For practical purposes in model making, I would always use epoxy resin for bonding to epoxy or polyester surfaces, but the design of the joint needs thought. 3 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.