i had a bit of a issue with a epoxy fill coat not curing over the weekend, not to sure why but im not geting to hung up its no big deal i just want to sort it and move on and learn from it.
ive serched on here but no luck only finding why it may not have cured and one thing saying some one scraped it off and used a citrus cleaner and then re aplled.
so far i spent most of the day scarping the un curred resin of the hole bottom of the board (its a 8’10 so a fare bit) and given it a good scrub with as many diffeernt citrus base cleaners as i could find in the house but it still has a certain amount of tack to it were it is in the weave of the glass. as i said i have been uing a blade to scrape it off and im still geting a tiney bit of i guss as i scrape back the weave at the same time but i dont want to odviosly go to far.
can i start to think about re aplying the fill coat now or im i going to have to just keep scraping back at which point i probably wont need a fill coat, ps it still seams to clog up paper prity quick if i try and use it.
any advise would be great to help me try and get over this one i guss on the plus side it wasnt durng laminating
I had an epoxy fill coat do that to me. Started on a nice warm, sunny day. That evening an Artic cold front hit. The epoxy would’nt harden. I did it the same as you. I scraped it off with an old knife after wasting a bunch of sand paper. It took a long time. When most of it was off I did another coat and the board was fine. It got some yellowing in places where the first coat was, but the board was solid. Surprisingly, the epoxy goo on the old knife did finally harden. Mike
I have had the same thing happen as well. You can lam another light layer of glass (2oz) over it and start from there or just try another fill coat. Try the hotcoat out on a small section first and see. I ended up using MEK to help strip off the old hotcoat. Make sure you take all the necessary precautions though.
Never had that problem, but white vinegar is the best solvent I have found for uncured epoxy–never had any luck with orange based cleaners. The vinegar is cheap and an easy cleanup for your squeegee etc.
Cheers many thanks I did use some vinigar as well but just could not get rid of the tackyness I re did the fill coat last night very thin I have to admit it didn’t look that great as it had a little orange peel thing going on we’re it odiously didn’t like the remaining resin still there, hopfuly it was all covered in the end. I’m going to do some art over the top so not to worried about discolouring
I put it in the house today to try and get a really nice solid cure then will give it a sand when I get home this eve hopfuly it should be ok and. It’s actually been my first fullcoventunal glass job although I’ve done a lot of epoxy stuf before so it’s been a big learning curve which I have enjoyed a d looking forward to the next one
You poor fella Charlie, I'd start by crying for a day or two and then start a thread here for assistance. I fuck up in small ways and get mad so I have the greatest sympathy for something big that goes astray.
Looking forward to seeing how you pull it together.
good news it sanded down just fine and all seams ok now, yes it doenst look perfect but realy not to fussed more consurrned about fountion over form at the moment. got the poscas out this eve and started playing around but still have the fin boxes to put in only thing being i realy cant deside were to put the (quad) boxes will post a pic when its a little more finished.
i think if it wasnt mixed properly which i recon was probably the case although i cant realy see why then no amount of heat would cure it unfortunatly.