I got a lot of steel panels, and constructed a large (32' x 40') structure out of two 40' containers. I used a lot of painted Fabral MightyRib panels, but had to use some galvanized ones, because I got a killer deal on them. Now it is time to paint the whole thing. For the galvanized, what is the best way to prep the surfaces so the paint will stick? We get blazing hot temperatures in the summer, upwards of 150 degrees surface temperature, 110 plus air temps, and 130 plus inside the containers. Winters bring weather in the 20-40 degree night time temps.
A friend of mine a long time ago, who was a professional painter, used some common vinegar to paint some for me similar to these. It was for a commercial job, and I never did go back and look at how it aged. I never got a call from the company that there was anything wrong with them, so just plain don't know if they did good or not.
Besides vinegar, is there any other treatments? Estimated 150 square feet, uneven vertical surface.
Thanks.
Steve