Painting polyurethane issues

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Emperis

New Member

• May 27, 2018

• #1

Hi guys,

I have recentley started casting with polyurethane and i'm having problems getting the paints (acrylic) to stick to the surface? Whne I sprey after with Mr super clear the surface still scratches and the paint comes of ? I am sure you guys will have the answers for me. Thank you in advance, William

 

M

memyselfi

New Member

• May 27, 2018

• #2

Could be a couple of issues, first suggestion would be to wash the parts with hot dish soap. particularly if you used a release agent. I have had several castings that sweated for a couple days, due to mixture being off slightly, either by the 1:1 ratio, or not shacking the part A, and part b container enough before mixing. if you are using a spray release agent, try coating mold with baby powder. that will also give parts better paint adhesion. But to the point clean before painting

 

division 6

Master Member

• May 27, 2018

• #3

Do you primer your pieces?

And yes do make sure to clear them before painting.

 

bbwolf

New Member

• Nov 11, 2018

• #4

Anyone got any ideas for which products to use please?

 

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Waketrail

New Member

• Nov 12, 2018

• #5

I know that Mr. Color has a spray can specific for resin models. (Mr Resin Primer Surfacer)
Its a red can with grey cap. I've never used it before and don't know how well it would work.