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This topic comprises 3 pages: 1 2 3
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Author
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Topic: Bizarre projector mount
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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001
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posted 01-18-2006 07:41 PM
OK
Here is some info about powder coating.
Phil thinks that powder coating is more expensive than conventional paint. Answer: yes and no. If you have your equipment powder coated something like a conventional black or industrial grey, there might be the possibility that the powder coater can gang your job with other similar jobs thereby drastically reducing your cost.
Different powder coaters might also have different takes regarding castings. I have known some powder coaters that prefer not to coat older cast iron pieces, as lubricants and impurities can solution out thereby compromising the ability of the coating to adhere. These shops might recommend an epoxy type coating.
Also remember that powder coated parts are baked in an oven. You should be familiar with the type of part you are coating, so as not to upset dimensional tolorances or change metallurgical properties.
Powder coatings might also have different heat range applications. On one occasion I had a new water pump powder coated Ford Engine Blue on a Ford "289" restoration project. The powder coating shop failed to tell me that the coating was for low temp applications only, and as soon as the engine heated up, the coating blistered off! The shop did apologize and righted the wrong, but it was still an inconvient pain in the ass having to disassemble the engine for a second time!
Powder coatings can also come in a variety of finishes, including wrinkle as used on Simplex and Century projectors.
You should also be aware of what chemicals you regurally use to clean a powder coated surface: the incorrect type cleaner might stain a coated surface.
One powder coater also told me that like white paint, white powder coating will yellow over time when exposed to oils and heat on a regular basis.
Quality of powder coating can also vary from shop to shop. Like paint, if carelessly applied runs, dust, orange-peel, etc can occur.
Finally, anyone that utilizes Earl "BONDO" Scham should be "SHOT AT DAWN"!
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This topic comprises 3 pages: 1 2 3
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