Can I use additive F with poly resin?

General Discussion
1

Just wondering.  My sand resin went bad and I have some Add F from doing some epoxy.  Can I mix with the poly lam resin?

2

Haven’t heard of compatiblity issues with xylene and poly resin. Should work. Try a small, test batch to be sure.

3

Sure!  Why not?  OR— better yet;  Why would you???

4

…

5

I don’t have any surfacing agent and need to do a hotcoat.

6

Unless a trip to the supply store to buy actual surfacing agent requires a genie, a griffin, some hobbits and a large greying wizzard, I’d say just go buy some surfacing agent… No reason to rush and do a hotcoat with the wrong materials just because you don’t have the right ones on hand - that’s the same logic tweakers use with meth

7

I believe its primary Parafin in Xylene while PU surfacing agent uses Styrene and wax.but I do’t know the mixing ratios

It’s here on sways somewhere cause I remeber someone maybe Kokua talking about making his own surfacing agent before.

I guess you don’t use sanding resin just laminating resin?

I know the cheaper guys do that but I usually usually have seperate laminating, sanding and finish resins when I do poly.

8

I had sanding resin but it was super old and went bad.  I found another thread that stated epoxy will stick to poly (but not vice versa) so I just did epoxy hot coat.  Making a set of plywood fins and just wanted to seal my lam job.  Thanks!

9

Embodied in that statement is the concept of ‘‘A thing worth doing, is worth doing well.’’     As well as correctly, I might add.