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Old 04-06-2015, 10:27 AM   #1
projectjordan
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Sticky primer?

Hi all.

I have re-primed a sculpey original piece ready for paint. But for the second time, the primer at the bottom of the piece has failed to dry.

I re-primed it, because this happened in the first instance as I assumed the clay at the base of the piece was too thick and hadn't cure/baked completely, and the solvents in the sculpey were reacting with the primer.

I removed all clay in this section, bulked out further with foil, and tried again. Leaving it a little longer in the oven and longer before I attempted to prime it.

This has happened now a second time.

I am using acrylic based auto aerosol primer. That I have used without issue many times before. And the rest of the piece is fine.

Any ideas

Cheers

Ryan
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Old 04-06-2015, 12:23 PM   #2
Vince-Vell
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2 things come to mind

did you test the primer on anything else? some other resin items, metal, wood, cardboard etc..

sometimes a primer can be bad and bottom of the primer is ok then once it gets to the bad part can cause a ton of issues, had it happen to me before.

other thing is its reacting to your item. best to show pictures to see whats going on.

krylon primer seems to be tacky, same with the super thick rusoleum 2x paint primer.

Primers i never have issues with is Duplicator filler primer and reg.


also what clay? sculpty? regular clay?
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Old 04-06-2015, 02:52 PM   #3
projectjordan
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Hi

It's Sculpey original. The terracotta stuff.

The primer is Carplan, don't think it's the primer itself as it's worked fine on the upper part of the sculpt, even additional coats applied after the reaction at the base.

Pics to follow.
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Old 04-06-2015, 02:58 PM   #4
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https://www.facebook.com/photo.php?f...8&l=91a5f475ff
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Old 04-06-2015, 04:43 PM   #5
Vince-Vell
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im seeing cracks in your sculpt, could be the sculpty inside is not sure and fumes reacting to the primer, but thats my best guess atm.
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Old 04-06-2015, 05:52 PM   #6
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I would remove the primer one last time.
Then get some stuff called 'wax and grease remover'
Scrub the sculpt with the remover ( I use an old toothbrush)
Then wipe it off with a clean rag before the remover dries. ( it dries really fast )
Then when it's time to prime again, hold the can further back from the sculpt and just mist the primer over it.
Let that dry and then another layer just misting again.
Repeat until you are satisfied.
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