I undercoated over it, and that combination has held up pretty . loose powder and wipe down with Mineral Spirits before painting. Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. Put it on thick. Note: Pipe Braces set in mixed soils are set 5'6" deep in concrete, with the minimum diameter of the hole being 12". The acidity of the vinegar will react with the metal, treating the surface to promote paint adhesion. GALVANIZED - Where appearance is important, apply one coat of OSPHO, let stand for approximately thirty minutes or until the metal is etched. Concentrated Phosphoric Acid vs Commercial products - School Bus I am preparing the shell for paint and reassembly, which will first entail an application of an epoxy primer coupled with 3M 2K seam sealer and Everwood's spreadable seam sealer and a minimal amount of body filler. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. http://homesteadadvisor.com/Properly painting a pipe fence (or any rusty metal surface) will require that the correct steps are followed. If it has a heavy rust that flakes off your going to have to prep The metal. My wood french doors stick badly when it is rainy (which is. Unless the instructions say otherwise, and I don't think they will, I'd apply the cold galvanizing directly to the Ospho and to any clean areas whether galvanized or bare. CLEANING AND ETCHING METAL - Where appearance is not important, one coat of DEPENDING ON TEMPERATURE AND HUMIDITY. I would like to apply one coat of primer and that's all. Put the metal back in the oven for 20 minutes to allow the wax to smooth out. Q. I have used OPSHO for years. oxygen cannot attack the metal. If the dried phosphoric acid is left on the surface any coating will fail unless it is a self etching primer because these primers have phosphoric acid in them but then you need to put a special sealer over that before any coating will adhere. Link Dry with compressed air. Answer 7: Flush your eyes with water for 15 minutes and seek medical attention. We use it in the boatyard all the time. Answer 4: Ospho begins working immediately. 2023 Maroon & White LP. Advertisement. http://www.txcourts.gov/media/1438003/140979.pdf, In-Home Visit: Tristan Jernigan becomes A&M's fifth 2024 commitment, 2024 Tupelo LB Tristan Jernigan knew A&M was home after first visit, Jim Schlossnagle emphasizes 'sense of urgency' moving forward, Baseball Thoughts: Texas A&M enters May with back against the wall. Should degrease as a first step, and then use Ospho as the next step, and then wash and dry? I used 3 gallons of Ospho surface prep to remove the rust and 24 hours later painted with white 702 Barn & Fence paint for a beautiful fresh look. Or should I consider a latex based primer to prime the well weathered galvanized areas and the Ospho treated areas? Metal Treatment Rust Primer - Ospho Metal Treatment | Fisheries Supply I am now working on my old Land Cruiser. OSPHO is recommended to thoroughly coat and etch the metal. Wear gloves, eye protection and long sleeve shirts. I'm not sure where to start?