Rust Encapsulator Black 15 oz.aerosol
Product Review (submitted on April 17, 2010):
This is a really nice product. I've used it to prime small areas or welded seams to "lock" the rust in for good. One complaint; I had a new can of the red rust encapsulator that sat around for about 8 months, and when I went to use it I found it had congealed in the can and was impossible to spray... I had to throw the whole can away (23 bucks!). All spray paints have a shelf life, so only buy when you know you're going to use it soon.