David_Nelson
Well Known Member
This is not meant to be a primer/paint debate entry. I'm only passing on the results of a simple experiment that I performed to see what would be more durable: aluminum w/ GBP-988, or a roughed up surface.
For some time, I've been thinking about what color I wanted my interior paint to be and I find the beige colors quite appealing. So, as an experiment, I went down to the local home improvement store and purchased a can each of Rust-Oleum #7770 Almond Gloss, Rust-Oleum #210372 Biscuit Appliance Epoxy Gloss, and finally Rust-Oleum #7758 Almond Satin.
I proceeded to make six samples out of alclad aluminum sheet (a former elevator skin), three cleaned and prepped w/ Sherwin Williams Self Etching GBP-688 Primer, and the other three scotch brighted and cleaned. All the samples were cleaned w/ laquer thinner just prior to any primer/paint.
After about 5 weeks to dry/cure, a simple "thumb nail" test was used to see if I could lift the paint from an edge or corner as this is where chips would normally start. Would you believe that all the samples that used the GBP-688 stuff failed! However, I was unable to peel any paint away on all the samples where the surface was roughed up, cleaned, and then painted. Go figure.
Now the question is, glossy or matte?
Here's hoping this helps somebody down the road....
For some time, I've been thinking about what color I wanted my interior paint to be and I find the beige colors quite appealing. So, as an experiment, I went down to the local home improvement store and purchased a can each of Rust-Oleum #7770 Almond Gloss, Rust-Oleum #210372 Biscuit Appliance Epoxy Gloss, and finally Rust-Oleum #7758 Almond Satin.
I proceeded to make six samples out of alclad aluminum sheet (a former elevator skin), three cleaned and prepped w/ Sherwin Williams Self Etching GBP-688 Primer, and the other three scotch brighted and cleaned. All the samples were cleaned w/ laquer thinner just prior to any primer/paint.
After about 5 weeks to dry/cure, a simple "thumb nail" test was used to see if I could lift the paint from an edge or corner as this is where chips would normally start. Would you believe that all the samples that used the GBP-688 stuff failed! However, I was unable to peel any paint away on all the samples where the surface was roughed up, cleaned, and then painted. Go figure.
Now the question is, glossy or matte?
Here's hoping this helps somebody down the road....