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Painting

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Garry Coles25/01/2020 10:36:49
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55 forum posts

Hi, I'm going to be priming some of the parts of my 2 in scale D & NY Traction Engine that i'm building. Some of the sheet steel plate has a grey finish to it, and is very hard to get off. I was wondering if this has to be removed before I prime. (The primer I am using is Phoenix Precision 2 pack etch primer.) It seems to be part of the protection for the steel plate when it comes out of the foundry. Can anyone advise me please.

Garry

vintage engineer25/01/2020 11:07:37
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216 forum posts
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Sounds like zinctec steel.

Garry Coles25/01/2020 11:21:25
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55 forum posts

No, it's just ordinary sheet steel that EKP supplies. No zinc involved.

Jeff Dayman25/01/2020 14:09:07
1719 forum posts
45 photos

Might be wise to ask EKP what it is, to make sure the paint you use is compatible. Just food for thought.

Neil Wyatt25/01/2020 14:26:41
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Posted by Garry Coles on 25/01/2020 10:36:49:

Hi, I'm going to be priming some of the parts of my 2 in scale D & NY Traction Engine that i'm building. Some of the sheet steel plate has a grey finish to it, and is very hard to get off. I was wondering if this has to be removed before I prime. (The primer I am using is Phoenix Precision 2 pack etch primer.) It seems to be part of the protection for the steel plate when it comes out of the foundry. Can anyone advise me please.

Garry

If it is standard rolled steel plate it is just an oxide film that can be left, or you can get it off with brick cleaner.

Neil

JasonB25/01/2020 16:08:22
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17035 forum posts
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Yes as Neil says just a thin mill scale, probably a bit of S275 steel. If I'm doing a lot of work on a part I will strip it off with brick cleaner(acid) first if not just leave it on as it adds a bit of texture which often siuts teh fabricated "castings" that I make.

Garry Coles26/01/2020 07:40:23
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55 forum posts

Thanks everyone.

Derek Allum26/01/2020 09:16:40
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34 forum posts
13 photos

Hi

you don’t have to etch steel as today’s primers have very good bonding to steel .

Dell

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