+x

 

Hanaldo - 9/6/2018 3:43:27 AM

Not all epoxies are the same and they dont all play nicely together. Before the X-Preg system, I tested co-curing several brands of pre-preg together in an attempt to find a unidirectional material I could use with EasyPreg. Not one of them worked. They all cured fine, but they all delaminated from each other. You could peel the various brands apart like they had release film between them.

There's no hard and fast rule for this sort of thing, but it is always safer to assume that they will not be compatible and do some tests. I highly doubt the manufacturers will know what other systems theirs may be compatible with, theres just too many variables to know that - the reply will always be "we dont know, you'll need to test it yourself". You may get lucky and find a combination that works, but nobody is going to be able to tell you for sure - you need to test it all yourself and be comfortable with the results you get.

+x

 

Steve Broad - 9/6/2018 8:20:15 AM

+x

 

Hanaldo - 9/6/2018 3:43:27 AM

Not all epoxies are the same and they dont all play nicely together. Before the X-Preg system, I tested co-curing several brands of pre-preg together in an attempt to find a unidirectional material I could use with EasyPreg. Not one of them worked. They all cured fine, but they all delaminated from each other. You could peel the various brands apart like they had release film between them.

There's no hard and fast rule for this sort of thing, but it is always safer to assume that they will not be compatible and do some tests. I highly doubt the manufacturers will know what other systems theirs may be compatible with, theres just too many variables to know that - the reply will always be "we dont know, you'll need to test it yourself". You may get lucky and find a combination that works, but nobody is going to be able to tell you for sure - you need to test it all yourself and be comfortable with the results you get.

You learn something new every day :-) I can only base my comments on my own experiences and agree with you that testing is the only way to find out. We need to ask the OP why he needs to mix epoxies? Probably best not to as even testing, unless under long term laboratory conditions, will tell you the actual bond strength and longevity of the bond. My mix was on a non critical car interior panel.