DanMcG
Promoted Users
Is that ready to spray epoxy? Thanks.Epoxy: 241 oz.
Is that ready to spray epoxy? Thanks.Epoxy: 241 oz.
Yes, for sure. Now that I think about it more, the front end was done in all epoxy but the roof, doors, cab sides and a spot on the back panel got both epoxy and urethane primer. The back panel did not get stripped and primed complete, most of it was fine having been shaded by the bed its whole life. This truck had the big bolted on urethane flares in front, that increased material a little.Is that ready to spray epoxy? Thanks.
Okay, thanks. The Everglass stuff says it's waterproof, so I figured I was good to go there, plus the instructions for the SPI epoxy say to put fiberglass filler on bare metal, but not plastic filler.Next time around don't put any filler on bare metal, their directions are simply to prevent return of their product and are not best practice for longevity. Fiberglass reinforced fillers are porous and not weather resistant, so the metal underneath them will not be protected in the long term.
As to your question, it's generally fine to put filler on sanded epoxy outside the recoat window, unless it's really aged epoxy, then you'd want to block the old stuff and spray another couple coats to start fresh. A couple of weeks to a month is no problem, but the epoxy definitely has to be well sanded to get adhesion at that point.
P.S. If when you are sanding, you might go to metal, in which case best practice is to re-apply epoxy and wait to apply filler.
Why wouldn’t you just use lacquer thinner or urethane reducer ?Here's a little side note: I spilled a little bit of the epoxy on my garage floor. Which has been coated with epoxy for years, and that stuff's impervious to pretty much everything. But I didn't want it stained. So I tried Prep All. That got the drops up, but the part that was starting to dry on the floor was still there. Then I tried the waterborne SPI. Didn't do any better.
Had a can of brake clean right there, tried that and that melted it right off immediately. Easily.
So if you ever spill any and you need to get it off the surface, brake clean might be a good choice.
Had the brake cleaner right there and tried it. And it's a lot cheaper than reducer, lolWhy wouldn’t you just use lacquer thinner or urethane reducer ?
You're correct! I never received this years manual. I only have last year's. My apologies.Page 12 of the tech manual under fillers says; Fiberglass filled fillers or other structural products are used before epoxy primer.