Posted 2017-03-15 7:57 AM (#169580) Subject: Acid wash left powder and streaks... HELP!
I acid washed the outside and inside of my featherlite trailer. Now it has a powder all over it on the inside and it appears to have pitted it with tiny tiny dots. The outside after we hand polished it has streaks. Any thoughts on why both of this happened and how to fix and prevent it in the future?
Why did I get a powdery mess all over the inside that I am now sanding down and what are the streaks from? I have photos but dont know how to add them.
Posted 2017-03-16 4:40 AM (#169583 - in reply to #169580) Subject: RE: Acid wash left powder and streaks... HELP!
It sounds as if the trailer wasn't sufficiently flushed with water after the acid bath. It may have to be rewashed to remove the residue. Try an RV wash with a power washer, aggitating it with a stiff bristled brush. If that doesn't remove the granules, it will probably have to be acid washed again. This would be faster and less labour intensive than buffing the whole lot.
Acid washing painted aluminum will eventually erode and destroy the painted surface, It is recommended that the painted panels be citrus washed instead.