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HARD clear top coating, preventing tarnish etc, on chrome
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Author:  Tail Air Gunner [ Wed May 05, 2021 10:06 am ]
Post subject:  HARD clear top coating, preventing tarnish etc, on chrome
Hi All

Just wondering if any or you REPLICA collectors, or air-gunners have given this subject any thoughts.
Curious to know what you have done.

I have a few all steel, and in some cases pot ash replica air guns that I have sanded and polished to a mirror finish.
As you may or may not already know, these metals will tarnish to a dull grey in time.

I happen to have a PH balance in my sweat, that caused metal to tarnish faster.... and I do mean FAST!! :oops:
So on my polished pistols, I tried a museum used product called Renaissance © micro crystalline wax.

It's great as a coating to stop natural tarnish on artifact behind glass that never gets touched.
However I found that after a short time, my sweat and oils simple ate thought it.

I think I may try using a hard coat crystal coating spray.
I found that spraying some into a separate container revealed to me that the liquid was of low viscosity
and made for a more even coating when applied with a brush. No brush strokes or sag were visible after drying on a test.

Anyone else have ideas on this subject?

Tks
T.A.G.
Author:  jckstrthmghty [ Wed May 05, 2021 12:05 pm ]
Post subject:  Re: HARD clear top coating, preventing tarnish etc, on chrom
The stuff in spray cans are all urethane clears. Same stuff that they spray on cars, just without the hardeners. It's plastic. Clean your surface of all oils using a solvent. It'll dry very hard over time depending on the environment. 2-3 weeks to fully cure. Chrome? Shouldn't need any of that. Chrome is the protectant. Should just be able to wipe it clean. If it does tarnish then it's the metal underneath. Or a pretty craptacular chroming job.
Author:  Tail Air Gunner [ Wed May 05, 2021 12:53 pm ]
Post subject:  Re: HARD clear top coating, preventing tarnish etc, on chrom
jckstrthmghty wrote:
The stuff in spray cans are all urethane clears. Same stuff that they spray on cars, just without the hardeners. It's plastic. Clean your surface of all oils using a solvent. It'll dry very hard over time depending on the environment. 2-3 weeks to fully cure. Chrome? Shouldn't need any of that. Chrome is the protectant. Should just be able to wipe it clean. If it does tarnish then it's the metal underneath. Or a pretty craptacular chroming job.


So what do you suggest for non chrome?
Author:  jckstrthmghty [ Wed May 05, 2021 4:20 pm ]
Post subject:  Re: HARD clear top coating, preventing tarnish etc, on chrom
I think the spray urethane would be fine on non chrome surfaces but it were me I would maintain the surface the same way I would with any other firearm, a rub down with gun oil after use. Actually lately I've been using frog paste.
Author:  Hawk-I [ Sun May 09, 2021 7:52 pm ]
Post subject:  Re: HARD clear top coating, preventing tarnish etc, on chrom
Tail Air Gunner...
I hope I can answer your question:
to protect and top coat (seal) bare metal whether it is polished steel...chrome...or brass I've used this:
DOMINION SURE SEAL - Instant Clear Coat that gives 2K performance with an Ultra Brilliant Hard finish.
It is available at most NaPa or CarQuest outlets. The product Code is: 24042.
You might be able to also find this in the automotive Paint section of Canadian Tire.
Follow the instructions and I recommend using a Pro grade Wax and Grease remover first to wipe all metal parts to be top coated. Do not use mineral spirits or paint thinner to wipe metal or other painted parts before applying Instant Clear Coat.
This is tough stuff.
Good luck.

Hawk-i
Author:  pistolero [ Mon May 10, 2021 9:13 am ]
Post subject:  Re: HARD clear top coating, preventing tarnish etc, on chrom
I have use an acrylic clear coat on a can to a 2240 polished barrel, it looks fine for 3 years now, urethane clear coat would actually be tougher and would last longer.
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