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Is primer really necessary for acrylic paint?

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Disco58

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Jan 15, 2006, 1:19:15 PM1/15/06
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I'm painting some vinyl tracks for a tank. Is primer really necessary
under the acrylic paint I'll be using? Also, is primer necessary on bare
styrene under acrylics? FWIW, I use Testors acryls.

Charles Fox

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Jan 14, 2006, 7:53:18 PM1/14/06
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Primer is always a good idea. Most paints are made to use the "tooth" of
primer to really hold onto the surface.

On vinyl tracks, primer is probably absolutely necessary. And don't wiggle
'em around too much after you've painted them.

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frank

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Jan 14, 2006, 9:34:53 PM1/14/06
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There's a flexible body primer, for flexible auto body parts available,
sometimes at WalMart. It's clear & in a spray can, that you prime a
flexible plastic part, like vinyl & then paint it using whatever finish
paint you want & the paint flexes, not flakes. I've used it on vinyl &
polypropolene (milk jug) plastic & used any paint I've had over it with
great results.

Kevin(Bluey)

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Jan 14, 2006, 10:41:02 PM1/14/06
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Wash the vinyl tracks in warm soapy water , and let them dry apply a
coat of future, them paint them .
Never tried this , but remember reading it as a tip on a website somewhere.

Milton Bell

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Jan 15, 2006, 4:30:12 PM1/15/06
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I've not painted any vinyl tracks (not an armor builder as a rule) but I
don't use a primer under PollyScale or Model Master acrylic. Just be sure
the model styrene is clean before you use any paint on it, even primer.


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