Painting black styrene with white Polly Scale

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wifly - 28 Jan 2010 07:25 GMT

Hello again,

I need to paint a dark piece of styrene with White Polly Scale .
What would you suggest for the underCoat? I cannot use Oil based
(Health) and
PolyScale doesn't make a primer Or do they?
Thanks a lot.

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Wolf Kirchmeir - 28 Jan 2010 15:19 GMT

> Hello again,
>
[quoted text clipped - 3 lines]
> PolyScale doesn't make a primer Or do they?
> Thanks a lot.

Wash the styrene thoroughly in dish detergent to eliminate mold release
agent. Then spray a couple light coats of grey primer from a spray can.
And I do mean light! You don't need 100% coverage, just enough to
provide tooth for the Polyscale.

OTOH Scalecoat make a primer for plastic that protects the styrene from
their paint. It's also good as a primer for other paints. You might want
to try that.

HTH
wolf k.

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David Nebenzahl - 28 Jan 2010 18:29 GMT

On 1/28/2010 7:19 AM Wolf Kirchmeir spake thus:

>> I need to paint a dark piece of styrene with White Polly Scale .
>> What would you suggest for the underCoat? I cannot use Oil based
[quoted text clipped - 4 lines]
> And I do mean light! You don't need 100% coverage, just enough to
> provide tooth for the Polyscale.

Yabbut the OP said they didn't want to use oil-based paint for health
reasons. Unfortunate, since this really is the best way (actually the
only effective way that I know of) to prime styrene for water-based paint.

I'd suggest to the OP that maybe they can use this method (spray paint
primer) safely by just observing some simple precautions: spray in a
well-ventilated area, and wear a mask or a respirator (always a good
idea for anyone).

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Bruce Burden - 29 Jan 2010 05:33 GMT

: I need to paint a dark piece of styrene with White Polly Scale .
: What would you suggest for the underCoat? I cannot use Oil based
: (Health) and
: PolyScale doesn't make a primer Or do they?

    I think the best primer is still the Floquil grey primer,
but you say you can't use that.

    That probably rules out the Tamiya spray primer as well,
as it is synthetic lacquer based acrylic paint, as it is
also a good primer, for a rattle can. :-)

    Testors (Model Master) offers a white primer in the Acryl
line of acrylic paints. PolyScale and Model Master Acryl are
produced by the same company, which is why PolyScale non-rail
road colors (green label) paints are discontinued. Snarl.

                            Bruce

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the OTHER Mike - 29 Jan 2010 08:15 GMT

> Hello again,
>
[quoted text clipped - 3 lines]
> PolyScale doesn't make a primer � Or do they?
> Thanks a lot.

buy white styrene ?

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Model Forum / General / Railroads / January 2010

Painting black styrene with white Polly Scale