Quote:
Originally Posted by Tom Wesenberg
That's the drawback.
I wonder how molasses would work? I've used it to derust some other parts, and it did a good job.
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Tom, I put a flathead V8 in a 55 gallon plastic barrel that was filled with water and one gallon of agricultural molasses for three weeks. As the scum came to the top it was scooped into a 5 gallon bucket. When the bucket finally dried out completely there was a layer of solid rust residue about 3" thick in the bottom. The block came out looking like new iron.
I have tried electrolysis, phosphoric acid, muriatic acid, Evaporust, vinegar and a couple other solutions. All of them give good results but none were better than the molasses. It works, it is safe and it is the only method I use now.