Q. I sprayed Rust Free™ on my Table Saw and after I wiped it off the surface has darker blotches? A. What’s happened is the Rust Free™ was left on a little too long and began to form an iron phosphate coating where the rust used to be. The way to clean it up is to go over the surface with a Scotch-Brite pad on a random orbit sander, using a little T-9 for lubrication. That should make it look like new. Q. The heavy rains and a leak in the cabin on my boat left me with a bag full of rusty tools. I’m considering Rust Free™ to remove the rust, then T-9 to protect the tools? A. Rust Free™ should help remove the rust, but you may have to also do some scrubbing with a Scotch-Brite pad. Once clean, a thin coat of T-9 will give the protection you need. Q. I am using your Rust Free™ product to clean light rust off some machine parts prior to repainting. I was able to wipe most of the Rust Free™ off but there was still a whitish residue on the parts afterwards. Will that interfere with the primer and paint? A. That white residue is an iron phosphate coating which is an excellent base for most paints. You should have no problem painting over it. Q. I received your product and my husband is very happy with it. If you could, please remove my name and address from your mailing list? A. We don’t keep a mailing list, but I appreciate your concern. Q. I have successfully used Rust Free™ on a variety of metals. I would like to use it for cleaning my boat’s aluminum mast and spars but I am afraid it may discolor the finish. Can it be safely used on aluminum? A. Rust Free™ is phosphoric acid based and should not be used on aluminum, since it will remove the outer anodizing and could attack the base metal as well. For heavy oxidation on aluminum it is best to use an abrasive pad such as Scotch-Brite, with a little Boeshield® T-9 as a cutting oil and subsequent surface protector. Q. Can Rust Free™ be safely used on gun surfaces without removing the bluing? A. No, It will definitely remove the Bluing. |