Accidentally mixed slow and medium hardener. Any ideas?

Builder's Forum
1

I used up the original jug of slow hardener and had to order more. CLC was out of the slow and sent me the medium hardener.  As I started to run out of the small bottle of medium I wasnt thinking and combined the 2 jugs and put a coat on the hull bottom.  Any ideas if this will be a disaster?

2

not a problem, assuming that it is all the same *brand.* The only thing that changes is cure time --  In fact, one can intentionally mix two different speed hardeners (e.g. fast/slow) to change the cure time.

Here's  the FAQ on the Mas epoxy website that discusses that:

http://www.masepoxies.com/Epoxy_School_/Tech_Support_FAQ.html##24

 Julie K.

3

Don’t worry. as earlier answer providing same brand. I add combo quite often. can really help in fair weather.   painters have been doing it for years. good luck

4

In fact, that's the only way to make medium hardener for Silvertip - mix equal parts fast & slow.

Laszlo

 

5

Gosh, I do that all the time ON PURPOSE.  With the MAS brand, you can mix hardeners willy-nilly for a custom cure time.  As long as the ratio of resin to hardener (two-to-one) never waivers, you're good with any blend of hardener.