Jay,

I dumped some leftover System Three SilverTip Laminating resin (about a quart)into an empty West System 205 resin can with a West System pump on top.

Then I used West System 205 Fast Hardener in it's own can with a pump already on it, and mixed a batch by pumping out of the West System can's, putting one pump of resin and one pump of hardener into a yogurt cup. It got tacky, but it never cured to any kind of hardness.

So essentially, I used a resin with a "normal" 2:1 ratio, with a hardener that is "normally" a 5:1 ratio.

I've mixed RAKA 350 Hardener with System Three Laminating Resin before and got a full cure, and they're both 2:1 epoxies, but never a 2:1 resin with a 5:1 hardener. Thinking out loud, that's probably the problem.

Whadaya think Jay? By the way, still love watching the "1st Roll." Thanks for a great video.

--Brad

: You dumped a two to one hardner into a 5 to one hardner - correct?

: I've mixed two to ones but not what you did. The only thing you can do is
: some test batches to see how it works. Many times they will kick but the
: final hardness will be compromised. If you put too much hardner in a two
: to one mix, it hardens kind of rubbery and not rock hard. So it's anyone's
: guess. I like experimenting. Give it a try. But give it several days to
: make sure whatever youÊdo hardens to a sandable hardness.