TENNESSEE EQUIPMENT MODERATED NEWSGROUP AND LIST > East Cost
> Massachusetts
> Manufacturers
> Why should i use epoxy powder coating primer? gray coat
Why should i use epoxy powder coating primer? gray coat
Q: Why should I use a primer under powder coating???
A: Why go through all the work without maximizing the corrosion resistance of your powder coated parts and projects? A primer is recommended for applications that are exposed to the element such as rain, snow, road salt, and salt water(*). Powder coating Primer is simple to apply: First apply the primer just like any other powder and cure the primer for 7 minutes at 400 deg F (metal temp). Then apply the top coat just like any powder and fully cure the top coat following recommended cure schedule for the top coat. A primer is usually not required for indoor applications. On the other hand, I would not consider powder coating any of the following parts without using a primer: car frames, motorcycle frames, car suspension parts, boat parts, trailer parts, motorcycle parts, ATV parts, snowmobile parts, etc. etc. *A zinc rich primer is recommended for salt water marine use. This is a zinc free epoxy primer.
1 pound of Gray Epoxy Primer powder coating. Please note that epoxy powders need a topcoat for outdoor use and for indoor applications where they are exposed to non UV-filtered sunlight. Made in the USA. Virgin powder, not recycled or reclaimed powder.
Gloss: Approx. 50% Gloss @ 60 degrees (ASTM D-523-94)
Recommended bake: 10 minutes at 400 degrees Fahrenheit metal temperature.
Exterior durability: Not recommended for outdoor use without a UV resistant top coat.
Quantity: 1 lb (0.454 kg) Larger quantities sold at a discount.
Notes: 1) The chemistry is epoxy, so this powder is not recommended for outdoor use without a UV resistant top coat. Not recommended for indoor applications with exposure to non UV-filtered sunlight without a UV resistant top coat. 2) If using without a top coat, cure 10 minutes at 400 degrees Fahrenheit metal temperature. When using with a top coat, cure 7 minutes at 400 degrees Fahrenheit metal temperature, apply top coat, and cure top coat at the recommended cure time and temperature for the top coat. 3) Minnesota residents are subject to 6.5% sales tax. 4) Due to differences in monitor settings and many other factors, the color of your completed part can differ from the sample in the picture.
We use dual 4 mil thick resealable poly bags (thick plastic 'zip-lock' type bags) for 8 mils of protection.
Please help us improve! Please let us know what powders you would like to see added! Please let us know as much as possible: color, gloss level, texture, etc. (Example: dark green, medium gloss, smooth/no texture). Please also let us know what items you are powder coating. Best of success with all of your powder coating projects! Thank you very much for your help!
