[sdiy] products for rust removal - the joys of phosphoric acid

[Paul Perry]

A better way to remove rust, is to soak the rusted object for a couple of 
weeks in a mixture of molasses with four pars of water. This is what the car 
restoration guys do.
I didn't believe it would work, but I tried it with a blob of rust that I 
found on the roof - it turned out to be an old double screwdriver.
Apparently the molasses has a compound that chelates the iron in the rust. 
The advantage is that the metal iron is not attacked at all. Cheapest place 
for molasses is the stock feed store. Most expensive is the organic health 
food place.

paul perry Melbourne Australia