PDA

View Full Version : What type of acid


Grzube
09-14-2008, 10:24 PM
We've been pressure washing alluminum & vynal siding for 5 yrs now, and have been passing off on brick homes. What type of acids and methods should we use, and I know that the windows and frames and painted surfaces must be covered by thick plastic wrap. Any advise would be appriciated, thanks!