I have several cans of ultrapoxy and super poxy here. What is the rule on these 2 paints. Can you use ultrapoxy part B on Superpoxy part A . Can you use Superpoxy part B on ultrapoxy ?
Also what is a good thinner to use with these paints. K and B thinner is hard to find. Thanks Greg

What you have is coveted by many. You will not be able to intermix the Ultrapoxy and Superpoxy products.

There are sources for thinners-- I have used lacquer thinner -- it works, but the finish takes longer to become "bulletproof". Hobbypoxy thinner works beautifully if you can find it. Hobbypoxy also is sold under a marine name by Pettit paints. They have a website. The thinner is listed there as Old Salem Thinner if I am not mistaken.

A few others have suggested other hardware store thinners that I have not tried. A search of RCU will reveal these options.

Lastly, do you have any black or satin catalyst that you would part with?

Jeff

I've never tried mixing old and new formulas but I have used Klenk's Epoxy thinner with pretty good results,

mixing the superpoxy for spraying used to be one part paint/ one part catalast/one part thinner.
the ultrapoxy tends to be thicker and requires more thinning to spray, experiment with small batches and see what happens
the paint goes a long way.