[PONTIAC SLEEPER]

When I rinesd with water I would get a flash rust effect. By that I mean a light orange surface rust from using water. When trying to clean with a chemical cleaner it would kind pick it up but it did not seem like it was getting everything. I never used the 520 because I was supposed to be able to just use the 579, neautrilize it, and then epoxy it... I just wasn't happy so I started using Acetone and red scotchbrite to neautrize it. no faliures so far and I have had parts that sat out side un covered for up to 1 year...

[Mr. Unbelieveable]

Originally Posted by PONTIAC SLEEPER

When I rinesd with water I would get a flash rust effect. By that I mean a light orange surface rust from using water. When trying to clean with a chemical cleaner it would kind pick it up but it did not seem like it was getting everything. I never used the 520 because I was supposed to be able to just use the 579, neautrilize it, and then epoxy it... I just wasn't happy so I started using Acetone and red scotchbrite to neautrize it. no faliures so far and I have had parts that sat out side un covered for up to 1 year...

I don't think Acetone neutralizes it. But I'm really not 100% sure on that.
I've seen this too, I think the 579 will leave a coating if not washed with water, but the coating isn't suitable to paint over, it does somewhat help to keep it from rusting.

Why don't you use the 520? It's a pretty quick step and inexpensive?

[PONTIAC SLEEPER]

Originally Posted by Mr. Unbelieveable

I don't think Acetone neutralizes it. But I'm really not 100% sure on that.
I've seen this too, I think the 579 will leave a coating if not washed with water, but the coating isn't suitable to paint over, it does somewhat help to keep it from rusting.

Why don't you use the 520? It's a pretty quick step and inexpensive?

Thats the only way I knew untill I got my hands on a product tech sheet. The stupid things you learn when your young... any way the Acetone seems to neutralize it and the red scotch brite helps to remove the chemical from the surface. I reclean sevral times untill I am sure i have a clean surface...