tigers
[Top] [All Lists]

Re: Home Powdercoating, by Joe

To: theo.smit@dynastream.com, tigers@autox.team.net
Subject: Re: Home Powdercoating, by Joe
From: Drmoonstone@aol.com
Date: Tue, 8 May 2007 03:44:17 EDT
Theo's results are not typical of most home applied powder coatings. We have 
to admit that he is skilled at most things he does. The general info   is 
good. Powder coating casn be applied at temps higher than 400 degrees, some 
higher 
than 800 degrees. The limit for home has to do with the easy bake ovens max 
temp and the market these products are being sold. The key to the results is 
the prep of the surface. The first thing that should be done is to "burn off" 
any oils and contamination It
then must   be blasted to create a surface that will hold the product, this 
requires a somewhat agressive approach such as 120 mesh cracked steel shot at 
ptessures that do not overheat or stretch the metal. Next blast with an alu. 
oxide to even the surface texture. At no time should the parts be handled by 
bare skin or any glove that has silicon or talc. An appropriate electrical 
contact must be made and the part should be hung before powder application. 
Application needs to be done in an manner that the powder is applied evenly (it 
can be 
somewhat forgiving on this point). The part is then heat to around 425 
degrees for approx. 40 to 60 minutes depending on how well the oven retains 
heat and 
how even the temp is in the oven. Removed and cooled. I would never recommend 
saving powder recovered from the application booth, can cause finish problems 
and damage the gun. Finally, wear a good small micron mask! 

Also, powder coating is not for headers and will come off at the temps it was 
applied. 

Good article Theo

Moonstone


**************************************
 See what's free at 
http://www.aol.com.




<Prev in Thread] Current Thread [Next in Thread>