One of several process applications I was/am considering is a deep seal for EPS. Or an XPS bonding sealer/coat.
However, I am wondering if this TotalBoat Penetrating Epoxy (below) would be a better choice for EPS (polystyrene foams) rather than the water-based epoxy.
https://www.jamestowndistributors.com/product/product-detail/97636
It look like a thin epoxy. Probably work for what you want to do. Some years ago i try to saturate deep eps with epoxy like bufo (hydroflex) done. I try that with my lamination epoxy more or less thinned. Can add lot of weight finnaly i came back to old school epoxy/microsphere seal. Deeper this slurry go stronger seems the board.
I’m not so much looking at it for strength in EPS.
For EPS, I was thinking of it as a way to minimize water penetration from dings.
Also for improved mechanical bonding to the foam.
Anyone tried thinned epoxy to hide or deal with sanding burn throughs? Effective?
Pretty glass jobs are not my specialty.
Maybe somebody else will give you a useful answer.
It could work but recoat with epoxy can be funky sometimes with fish eyes and others resin folds. In general paint with solvent works better for that so maybe epoxy with sovent to. May be for thin with acetone could work best, but be carefull to not be in contact with epoxy thinned with acetone.
The guy I talked to said the 50/50 mix penetrates about an inch into the foam. I plan to try it the next time I do an EPS board, but that may be a while from now.
Thanks Harry.
I’m thinking about trying the TotalBoat Deep Penetrating resin (formula for Cold) on EPS and another project with a heavy fiber, paper-like product.
I’m a little concerned about the quality of DNA available locally.