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Author Topic: De-greasing prior to painting.  (Read 207 times)

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Offline emjaybee

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De-greasing prior to painting.
« on: May 26, 2019, 06:42:45 PM »
Has anyone got any suggestions for de-greasing plastic models prior to spraying with acrylic rattle cans?

I've spent a LOT of time on a particular piece and if I male-chicken it up on painting I  reckon I'd probably do myself some permanent damage.

 :-X
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Offline class37025

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Re: De-greasing prior to painting.
« Reply #1 on: May 26, 2019, 08:07:22 PM »
I tend to just wash / scrub with washing up liquid and warm water, rinse well and then leave to dry.
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Offline emjaybee

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Re: De-greasing prior to painting.
« Reply #2 on: May 26, 2019, 09:32:12 PM »
I'm wondering about wiping it down with IPA ( not the beer), this doesn't seem to have any adverse effects on a test piece of plastic with 'bits' glued to it.

Anybody got any thoughts?
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Online RailGooner

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Re: De-greasing prior to painting.
« Reply #3 on: May 26, 2019, 09:49:17 PM »
I'd go with 37025. The important thing is don't touch it with bare skin after washing, as skin releases natural oils.
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Offline emjaybee

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Re: De-greasing prior to painting.
« Reply #4 on: May 26, 2019, 09:57:09 PM »
I'd go with 37025. The important thing is don't touch it with bare skin after washing, as skin releases natural oils.

The complicating factor is that I have to mask up to spray.

I'm not going to be able to mask up without touching the part I'm going to spray, which is why I'm trying to find a way to degrease without washing.
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Online RailGooner

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Re: De-greasing prior to painting.
« Reply #5 on: May 26, 2019, 10:32:05 PM »
After the final wash and rinse ready to paint, I'll try never to touch a model again with bare hands. I wear Nitrile examination gloves. They can be a bit frustrating until you get used to them as masking tapes love to stick to them.

I get mine from work. Which reminds me I'm going to have to stock up before I leave! In lieu of gloves, wash and rinse your hands thoroughly and keep contact with the model to a minimum. Wherever possible try to use some form of barrier: paper tissue; cling film; a square of masking tape where you want to place your fingers.
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Offline woodbury22uk

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Re: De-greasing prior to painting.
« Reply #6 on: May 27, 2019, 08:47:25 AM »
After reading a suggestion elsewhere from Only Me I have been using Swarfega for degreasing all manner of things prior to painting. Found it particularly good for removing any residues from 3D printed items.
Mike

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