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"Hard Plastic - is Washing Necessary" Topic

15 Posts

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1,398 hits since 10 Jun 2015
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Comments or corrections?

Sevastopol10 Jun 2015 6:55 p.m. PST

About to assemble a few Perry Cuirassiers. Do I need to wash the plastic first to remove the releasing agent or does that only apply to soft plastic figs?



Personal logo Pictors Studio Sponsoring Member of TMP10 Jun 2015 7:04 p.m. PST

No. I've literally assembled thousands of them and I have never washed them.

Coyotepunc and Hatshepsuut10 Jun 2015 7:57 p.m. PST

Depending on the primer you use, it can be helpful, but definitely not required.

jowady10 Jun 2015 8:27 p.m. PST

I've been building styrene plastic models now for 50 years. I have never primed or washed any of them and I happen to have the first model I ever built and the paint is perfectly intact.

Personal logo Editor in Chief Bill The Editor of TMP Fezian10 Jun 2015 9:14 p.m. PST

Doesn't hurt! grin

Martin Rapier10 Jun 2015 10:34 p.m. PST

No, and there is a risk you'll damage (or worse, lose them down the sink) any small parts.

JezEger Inactive Member10 Jun 2015 11:16 p.m. PST

Never washed plastic figures from any of the main manufacturers, Perry, WGF, Victrix or Warlord. Never had any issues.
I don't wash model kits either.

Lonkka1Actual11 Jun 2015 2:31 a.m. PST

Never done so, but they do say that you should do so.

If you are afraid of losing small parts, wash while the parts are still in sprues.

ZULUPAUL Supporting Member of TMP11 Jun 2015 2:46 a.m. PST

Never have, never had any problem using acrylic primer & paints

Personal logo Flashman14 Supporting Member of TMP11 Jun 2015 3:55 a.m. PST

I wash everything. Oils from assembly. I just want the best potential primer bond I can get.

nazrat11 Jun 2015 6:17 a.m. PST

I'm with everyone else-- I've never washed any plastic models. I rarely wash resin stuff, either,although that has bitten me a few times…

Sevastopol11 Jun 2015 6:17 p.m. PST

Thanks for all the responses! Think I'll just add primer and go from there. :)

Personal logo Ditto Tango 2 3 Supporting Member of TMP Inactive Member11 Jun 2015 10:30 p.m. PST


XRaysVision12 Jun 2015 11:16 a.m. PST

The mold release/lubricant used for styrene molding is water soluble. The amounts used with modern molding methods are far less than back in the old days.

I have been a plastic modeler since the 50's and the progression of technology has been huge. Suffice it to say that, today, primers and water based paints will mix with any remaining release on styrene (this NOT the case with vinyl, i.e. "soft plastic" figures).

It does no harm, and may provide some benefit, to wash sprues in warm, soapy water though. The way to do that is to simply immerse them in the sink or dishwashing tub and move them around a bit, then rinse. I wash all mine. If you do, will notice that the sprues are much more shiny before than after.

When I was modeling, I was constantly washing my work to get rid of dust before priming. Priming provided two things then as it does now. Priming provide a uniform finish that allows you to spot imperfections and correct them before painting. Secondly, a good flat primer provides a consistent base color for the paint and the proper roughness, or "tooth", to pull the paint out of the brush. For these reasons, I always prime.

So washing – a marginal yes, but probably not needed these days

Priming – a resounding yes and use a good one, but not really needed for adhesion (for styrene) as much a base coat and facilitating/easy painting.

I hope this helps.

Sevastopol14 Jun 2015 6:06 p.m. PST

Thanks again!


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