Quote:
Originally Posted by sixt9rsx33
I have done three driveshafts with good results.
I have also done steering gear in a wall paper hanging bucket.
I have basically done three car restorations using this stuff, and some spot work on other cars. What I have found is that if you leave zinc coated parts in ER too long it will pull the zinc off the part. It will also remove paint from parts. This is usually not as big of a problem as the zinc lifting. When you reuse it the color turns black and will leave a residue on parts but it can removed with water and light scrubbing. But when you do that make sure you dunk the part in fresh ER otherwise it will flash rust quickly. I really like to dunk the just treated part in fresh ER and let it dry to protect it further.
|
Agree as once it’s used a few times it looses its effectiveness and when doing larger parts new or lightly used worked best and eliminated the black coloration you mentioned. For protection I’ve had excellent results using Resto Guard Dry, a spray on and it dries leaving part natural looking, and Rust Prevention Magic, where you heat the part and brush on a wax like product that melts shiny on parts but once part cools it’s not visible.