resin questions?

[thefishingfreak]

What is the working time of laminating resin?{max time to recoat}

Can i lay up a piece then put it outside for a week and recoat it without sanding?

Also, will it ever harden? can I use laminating resin as the finished product? or does it have to be finished off with a finish resin?

[MakoMike]

Laminating resin should stay tacky even when fully cured, it is not for use as a finished product ( unless you're making flypaper). You'll need to finish the piece with "regular" resin.

[Slipknot]

is this polyester resin or epoxy resin

huge difference


The cure times vary depending on brand, some have fast set, medium and slow hardners


I would never wait more that 12 to 20 hours to recoat without sanding between coats.

temp. has a lot to do with this stuff

sounds like a finish resin is gelcoat
I guess you must mean polyester resin then. That is nasty stuff Mike, all kinds on dangerous solvents in it, takes your breathe away if you don't have a tight fitting mask with the correct filters.

Epoxy resin is more money but I think it makes a world of difference for the do it yourselfer.

[thefishingfreak]

polyester resin.
there's laminating resin and finishing resin with wax in it to make it cure.

I was wondering for the stringers layup. I don't want the bilge to remain tacky forever.
I guess if it's dry enough to sand it I'll just sand it. and use finishing resin on parts I know wont need a second application.

[MakoMike]

Originally Posted by thefishingfreak

polyester resin.
there's laminating resin and finishing resin with wax in it to make it cure.

I was wondering for the stringers layup. I don't want the bilge to remain tacky forever.
I guess if it's dry enough to sand it I'll just sand it. and use finishing resin on parts I know wont need a second application.

If its true laminating resin you can sand to your heart's content and it will still be tacky. Its made to stay tacky so you can make a laminate (duh!) and has to be finished off with a final coat of resin. If I were you I would use an aerobic cure resin to fisnish and skip the wax part.