Re: Can you mix brands of epoxy
I'm no scientist or chemist, but I'll take a crack it.
Unless its a very oddball epoxy you won't have any problems with a different brand of epoxy bonding to it. Oddball as in a specialty product that you most likely wouldn't be able to buy easily.
As far as mixing different brands (parts A and B)...yes you can...but you need to know the chemistry of each to know if they're compatible, so you?re better off sticking to one brand. Unlike the polyester industry where catalyst suppliers are separate from the resin manufactures, epoxy and the hardener tend to be marketed as a set by the same company, although most epoxies do allow you to use different hardeners for different applications.
What?s odd is that there are also many different catalysts for polyesters and VE?s that can speed up or slow down the cure almost like they have with epoxies, but you rarely see them for sale in the retail market.
None of the retail suppliers make their own epoxy, some are formulated especially for them, but none that I know of make it themselves. There are a few that custom blend their own, but they still buy the bases and just mix it together themselves. And like everything else in life it?s a trade off between quality, performance and cost.
