Hi Guys
I hot coated my epoxy board with no hardner and jsut additive F, the guys who sold me the epoxy labled the hardner bottles wrong and it actually had plain epoxy in it. How do I recover from this.
Help please
Quote:
Hi GuysI hot coated my epoxy board with no hardner and jsut additive F, the guys who sold me the epoxy labled the hardner bottles wrong and it actually had plain epoxy in it. How do I recover from this.
Help please
Lots of denatured alcohol someplace with good ventilation.
good luck
Does the entire board have a finished laminate layer, top and bottom? If so, I would just try to wash and scrub off the bad hotcoat. But only if the foam is completely sealed with glass and lam layer.
RR hardener is noticable in thickness. Much runnier than resin.
I’ve heard some of those orange cleaners work well for cleaning up epoxy, but have never used them and don’t know the effects it might have on the board.
but at this point you don’t have many options.
good luck.
you should be able to scrape and rub it out with lots of towels spatula etc etc.
you may want to contact a reputable marine supplier or large repair facility and ask them if there are special cleaners for that…my supplier seems to have a product for just about anything. I hear MEK is a strong cleaner but its a toxic chem so you need total protection…gloves, respirator etc.
I once rubbed off a polyester gloss coat that didn’t kick- with foam dust off of my shaping room floor. Just like as if it was wax. Don’t know how it would work with epoxy though… try a corner first. -Carl
I had a similar experience not too long ago late at night when I shouldn’t have been working, and mixed a ratio that didn’t kick on a hot coat. I talked to Sammy from RR and he suggested scraping it off with a razor blade using denatured alcohol to soften the gelled resin. I used a window scraper (with replaceable blades) and it worked but took a ton of time and patience. It sounds like you should be able to fix your problem easier with the denatured alcohol, since you didn’t have any hardener. Good luck!
If you’re going to use alcohol to wash it off be careful not to get any on your skin. I tried to clean some too slow setting epoxy off with isopropyl alcohol from Maplins and ended up with a big allergic bump on my arm the size of a golfball. Scary stuff, should have been more careful.
Don’t use MEK, I’ve used it in the print industry for years. It has a habit of making your cock fall off! (where printers use it, go to the toilet and don’t wash there hand before handling the old fella) Got really bad blood poisoning from it once as well.
Cheers Joe
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It has a habit of making your cock fall off! (where printers use it, go to the toilet and don’t wash there hand before handling the old fella)
joe did that happen to you???
Alas no. I still have the burden of a monster!
HI Guys
Thanks for your help
Wel I scrped the epoxy off and the then used alcohol to clean of the excess. I then re-hotcoated the board. It all looked fine so I set the FCS fins sanded the top and then sanded the bottom. But alsa the hotcoat started to peal in places and gum up the sandpaper. So the board is a stuff up. It was for someone else so I can not sell it on as it might peel at a later stage. Well I guess my supplier ows me some epoxy, fins and a blank
Swifty you still in the Uk at the moment,
Should be fine to clean up that way, what temp did you glass in, sounds like you started sanding too soon, a post cure may help, or even just bring it into the warm for a few days.
Hi Woody
Yup till end of this year.
I glassed it at about 23 degs. I event took a hard brush to try and mix it into the old layer. Then let the board stand for 2 days inside the house before I started to sand it.
Vinegar is a great cleanup agent for uncured epoxy, honest, cheap and cheerful, won’t ignite and washes off with water. Better for the and your environment! OK smells like a chip shop but no really nasty fumes…