epoxy lam make up

General Discussion
1

I’m intending to use epoxy as my lam resin on a paipo I’m building. I’m looking at 6oz glass over a pu blank cut from a sheet of insulating foam I had left over from a building project. I’ve used epoxy before in sheathing ply, whilst converting my 1972 Soling sailboat, so I’m ok with the priciples, but I have a question.

Whilst laying up do you use the epoxy neat or is it wise to thicken it up somewhat with silica/ballons?

BTW I’ll either be using SP resins or WEST system resins, as they are the only ones available in my area.

thanx

2

No need for colloidal silicas since you are not doing any gap filling. You can use SP-112 straight out of the bottle, right onto the cloth and P/U blank. In fact, it will be easier to work and soak into the fabric. The molecule size is such that it will not soak too far into the foam if it is 2 lb/cu. ft. or more. Too bad you don’t have a line on Greg’s Resin Research products… Life gets real easy especially between coats prepping.