SUPER GRIP BLACK

Sorry to hear you are having to redo some recent projects. To clarify, there is not a single powder that has to have a primer applied below. We do recommend it in some cases and in fact, there are some coatings that should not have a primer. This decision has to be made by the applicator based on many factors.

Rust coming through a powder has nothing to do with the powder you applied but more with how that powder was applied as well as how the part-metal was prepped. There are also some tricks to help with preventing areas that are difficult to coat and can retain moisture causing rust issues down the road.

For outdoor projects the decision has to be made by the applicator whether or not the use of the product being coated should receive a primer or not. For example: If I'm coating iron patio furniture in Florida then I am definitely applying our Zinc-Rich Primer ESS-10171 first because as an applicator I know the potential issue that could come from not applying this primer in this environment. However, I am also taking steps to prepare my project by not only sand-blasting but also outgassing and perhaps even additional steps. If I am coating the same project in Phoenix, AZ then perhaps less part prep is necessary but as an applicator I always want to error on the side of success and sometimes quoting that job accordingly is important.

Veins and Artery finishes have high and low spots once cured, these lows spots if not applied heavy enough can lead to substrate exposure.

Included are some links that highlight what I am referring to and I will send you a direct email with images and other links showing a couple of tech tips that can help.