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Showing results for tags 'electrolysis'.
Found 4 results
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Ralph had a big dent on the drivers side grille so that the hood would not close fully, so being I had it apart it got painted. The white powdery substance on the cleaned side is residue from phosphoric acid used as a metal prep. -
Okay, for full disclosure this is actually for my '58 Airstream International Overlander, that I boiled at the time I was repainting my Cranbrook rims. It looked to have 5 or 6 coats of paint but not much rust on the outside. The process even dislodged the decades old residue and rust from a can of "fix a flat". This took a few days because my process only leans about 70% of the rim at a time. Next time I redo a set of rims, I'll use a plastic 55 gallon drum and do four at once. I don't mind letting them boil all day, because I can be doing other things in the mean time, and when thoroughly cleaned, the residue comes right off with a power washer, or simply a garden hose and scrub brush. -
The cast iron was pretty clean on the outside, because heavily rusted metal leaves a brown foam. On the left you can see the bubbles in motion before they reach the surface. The star washer made a good bite from the cover plate to the pump itself because really rusty nuts and bolts won't conduct enough current to clean anything. The object is to keep your alligator clip out of the solution otherwise it will clean it so well that it will rust up over time. -
The metal to be cleaned is grounded just like welding. Get it backwards and the object becomes the sacrificial anode. The vat in the background is actually for stripping rims, and I welded up a rack out of 1/2 steel rod that has a line of sight to all angles of the submerged part of the rim, so it just needs to be rotated to do all the work. You can see the water line where the pump was dipped. I flipped the plate on the other two bolt on the opposite side in order to get the part that wasn't submerged in the washing soda.
