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Bleed through....

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Posted · Report post

I understand what it is... but what is happening?

And why would they produce parts in red plastic and then expect us to paint it white?

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Posted · Report post

I understand what it is... but what is happening?

And why would they produce parts in red plastic and then expect us to paint it white?

solvents in the paint reacting with the plastic, I coat mine in future then hit it with tamiya white then business as usual.

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Posted · Report post

I understand what it is... but what is happening?

And why would they produce parts in red plastic and then expect us to paint it white?

Not everyone paints their models, and depending upon which kit you're talking about, some kits (say the Revell Snap-Tite '57 Chevy Bel Air hardtop) were marketed to less experienced builders-- builders who would likely not paint the body.

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Posted · Report post

I understand what it is... but what is happening?

And why would they produce parts in red plastic and then expect us to paint it white?

When you paint the plastic, the piant solvents loosen the outer most layer of the molded plastic, this allows the plastic to leach into the paint and almost mix with it, causing your paint to have a pinkish red tint to it. There are some good primers out there that will help stop that. Grab a few and see what works for you.

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I have followed a few lengthy threads on this subject here and on other forums, and Lownslow's observations about using Future as the first barrier seem to reflect the majority of responses. This is something Donn Yost could add to.

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Posted · Report post

Yep-it works.

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Posted · Report post

If you prime, then spray flat black, then prime again you will never have bleed through, the flat black eliminates it.

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