had problems with uni-mould-vinylester-tooling-gelcoat


had problems with uni-mould-vinylester-tooling-gelcoat
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Mr. Gromis
Mr. Gromis
Mr. Gromis
posted 5 Years Ago HOT
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tooling-gel coat ate through the clear paint and primer underneath so my question is which paint can I use that won't be eaten by-tooling-Gelcoat? help
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Mr. Gromis
Mr. Gromis
Mr. Gromis
posted 5 Years Ago HOT
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Posts: 4, Visits: 216
 
Warren (Staff) - 10/7/2020 9:28:32 AM
I assume they are rattle can sprays?  You may still have problems as most 2k sprays are still solvent laden.

2k through a professional spray gun is the way to go ideally if you use paints.

yes this vid I show   that acetone didn't strip  the paint  thank you  for pointing me to 2k paint I will run a test first and post it here

Edited 5 Years Ago by Mr. Gromis
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had problems with uni-mould-vinylester-tooling-gelcoat
Gromis - 5 Years Ago
     The tooling gelcoat is polyester based with hight styrene content, basically it acts like a paint stripper. The only coating suitable for these kind of gelcoats are 2k, basically paint with hardener....
torstenker - 5 Years Ago
             so i bought EASTWOOD'S 2K AEROSPRAY™ CERAMIC CHASSIS BLACK and EASTWOOD'S 2K AEROSPRAY HIGH-GLOSS CLEAR on the internet net its 2k thank you for pointing me in the right direction
Gromis - 5 Years Ago
     I assume they are rattle can sprays? You may still have problems as most 2k sprays are still solvent laden. 2k through a professional spray gun is the way to go ideally if you use paints.
Warren (Staff) - 5 Years Ago
             yes this vid I show that acetone didn't strip the paint thank you for pointing me to 2k paint I will run a test first and post it here
Gromis - 5 Years Ago
     Yeh, unfortunately still a lot of traps to run into, even with 2k. Ideally you would do a thorough bake at 80° for 2 or 3 hours to fully cure the paints, and even then some of them are just vulnerabl...
Hanaldo - 5 Years Ago
     Generally we would advise people to avoid paints where possible because of these kinds of issues. And sometimes even 2k paints will come off in the mould, not because of release issues but because th...
Warren (Staff) - 5 Years Ago
             Yeh I agree; personally I use Scott Bader's Primecoat and Glosscoat, which I believe will be extremely similar to your coating system. Unfortunate for people that don't have access to these systems.....
Hanaldo - 5 Years Ago
     It makes me think that Mr. Gromis used was or PVA or a combination of both as release agent before using the mould, same as I tried That wax wax then attacked by the polyester gelcoat. I mentioned...
torstenker - 5 Years Ago
     PS: here is the image what the boat prototype looked like when applying the 2k primer without hardener thats what it looked like after using the release agent stripping it and sanding it down...
torstenker - 5 Years Ago
     Hello, I'm just about to make some Uni-mould moulds straight off some brand new car panels. The panels have been factory painted but the finish is really soft! I'm guessing that I'll run into...
benji82 - 5 Years Ago

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