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 Post subject: What lacquer for brass trim?
PostPosted: Sep Wed 11, 2019 9:17 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3255
Location: Nr London, England, SS1 3PT
I need to lacquer for some cleaned brass trim, only small pieces, so I'm reluctant to buy yet another can of a specialised product.

I have both acrylic and cellulose sprays: will either of those do the job and stay on and last?

thanks Gary


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 Post subject: Re: What lacquer for brass trim?
PostPosted: Sep Wed 11, 2019 2:41 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 14018
Location: S. Dartmouth MA 02748-1225 USA
Cellulose...

Do so when the humidity is low.

I have found acrylic to be consistently cloudy to some extent and has a faint glow of blue in sunlight, (uv reaction). Did not adhere well to the metal either...

If you have transparent toner lacquer, that could be interesting if applied heavy and low areas get thicker coating. It should cause a burnished look with high areas having less shading than the low areas.

If not, easy clean off with thinners...

YMMV

Chas

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 Post subject: Re: What lacquer for brass trim?
PostPosted: Sep Thu 12, 2019 10:33 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3255
Location: Nr London, England, SS1 3PT
Thanks Chas

Have plenty of Mohawk lacquer so will use that.

Gary


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 Post subject: Re: What lacquer for brass trim?
PostPosted: Sep Tue 17, 2019 7:29 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 10700
Location: Baguio City, Philippines
A couple of tips: Rinse the brass well with water and dry making sure you don't touch the surface. Oils from your skin will hasten the lacquer failing in the future.

Set the parts in direct sun on a warm day for several minutes before spraying them. This allows the brass to expand before the lacquer film is applied, preventing microscopic cracks occuring as the metal is subjected to varying temperatures in the future, which will allow the formation of microscopic cracks in the surface, hastening tarnishing.


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 Post subject: Re: What lacquer for brass trim?
PostPosted: Sep Tue 17, 2019 7:56 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3255
Location: Nr London, England, SS1 3PT
Good tips, thanks Alan

Gary


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