Hi all, We just got a mural job decorating a galvanized barn. Would appreciate any advice on preparing the surface. Vinegar? washing it? we plan to use DTM paint. Thanks!
Troy and Ellen
Posted by Preston McCall (Member # 351) on :
DTM? Whaz that? Sherwin Williams Metal Latex sticks well to galvanized metal, I hear. Have tried it, but really studyied it. Ask them about it, otherwise you might have to go with a zinc chromate primer? Might try theior website. I bet they have instant info about the issue, there.
Posted by jack wills (Member # 521) on :
XIM 300 clear, Sherwin Williams, has it...
Posted by Sonny Franks (Member # 588) on :
Sherwin Williams DTM (Direct-To-Metal)works great - no primer necessary. If it's a hot day. put some Floetrol in it.....
Posted by Troy & Ellen Hendricks (Member # 6687) on :
Yes, Sherwin's Direct-To-Metal. Hunting around on the internet for more info, we are formulating this plan: power wash with diluted Dawn dishwashing liquid, then power wash with diluted white vinegar, then power rinse with water. Draw and paint.
Thanks for your responses! what do you think of this plan?
Posted by Bill Diaz (Member # 2549) on :
I've never seen a galvanized barn -- silos, yes --but never a barn, and we're surrounded by barns. Can you post a pic of it?
Posted by Donald Miner (Member # 6472) on :
On smaller projects, I have washed with copper sulphate mixed in water, let sit over night and then washed with vinegar. After allowing it to dry, rinsed with water. Wiped down and spray painted with XIM and immediately sprayed with background color, while XIM was still tacky. Had excellent results. Old school, but it worked! I suppose that some newer paints should do the job, but I have little experience with them. Personally, when I'm in doubt, I go for the tried and true.
Posted by Troy & Ellen Hendricks (Member # 6687) on :
This barn is 70' long and 8.75 feet up to that ridge. Plan to start in the morning. Don't see how to post a photo.. ? looking....
