Testimonials

These pictures are of cheap Chinese steel sprockets used in our hot pigmenting tank. We produce many thousands of Douglas Fir wood molding strips that are stained to look like Redwood. The "stain" is in fact a pure pigment in a water base. The pigment is 60% by weight in concentrate form pure iron oxide, in layman's terms... pure rust. We may be one of the only examples you will encounter where metal is deliberately immersed in rust and water, even more problematic is the fact that during production the solution is heated and maintained at 80 degrees. I should also point out that the bottom half of the sprocket is ALWAYS immersed in the pigment even when the machine is idle.

We used cheap steel sprockets in our first machine as it was a prototype. We wanted to replace them with stainless steel but decided instead to get another set of steel sprockets and clean them when they got too corroded. We have used hot dip acid/lye tanks to clean them previously. The RustRelease™ was by far the best solution. We don't have to take them to our local machinist friend to have them dipped in his tank, we can do it in a plastic bucket overnight, the solution is safe to handle and dispose of and best of all the RustRelease™ works fantastically.

After an overnight dip, I only had to lightly brush the sprocket with a small wire brush to clean them as you see in the pictures. In a few small areas I needed to brush the surface material off and then re-immerse them in RustRelease™ for another hour to get the heaviest rust completely off.

I doubt you will find anyone who has rust as deep and thick as we do. The marring on the surface is caused by the rust itself and the prior acid dipping. I am amazed at RustRelease™ and its ability to safely remove rust so well.

Sincerely,

Randal Locke, Molding Shop Manager
Parkinson's Building Materials