Talk Composites - The Forum for Advanced Composites

EL2 Laminating epoxy with slow hardener is not curing

http://www.talkcomposites.com/Topic22897.aspx

By Drew - 3/10/2017 11:47:55 AM

Hi, I have used EL2 resin with slow hardener to coat the inside of a moulding with the intention of sanding and polishing it to give it a nice finish on both sides, its been 4 days now and the surface is still not hard enough to sand.

When I have done this before with the fast hardener it is good to sand after 24 hours or so,

Is it just a matter of leaving it for longer, or have I messed up somehow?.

Any Ideas,




Drew.
By Warren (Staff) - 3/20/2017 11:49:07 AM

Hi Drew,

You can seal the surface with GlassCast rather than need 2 separate resin systems.  The GlassCast has better UV resistance than the EL2 overall.