POR-15 Stop Rust Kit - Stop rust like a pro!
The POR-15 3-Step Rust Preventive System cleans, preps, and coats metal to stop rust permanently.
P.O.R. Products is known for formulating products with the capabilities of creating complete systems for various automotive restoration needs. The
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Trust the process for perfect results
I was "gifted" a 1990 VW G60 engine that lived in the woods under a tarp for 10 years. This thing was rough. I disassembled it and cleaned it up by hand, then decided to go with the POR15 kit from word of mouth. Read the instructions! They are spot on. I had this block decreased, metal prepped, added a coat of rust preventitive, and painted with only one coat of engine enamel between breakfast and lunch a couple of weeks ago. It looks like it just came off the factory floor. The degreaser is thorough, the prep had the surface ready, and the engine enamel went on evenly with the foam brushes provided in the kit. I bought a couple of additional foam brushes from HD, and they were honestly pretty trash. If you need an additional brush, get something from a paint store like SW or Ben Moore. The block now has a nice hard black candy coating on it that looks great and is durable. Don't forget to prep with paper/plastic/tape properly, if this stuff dries in any of the bolt threads or mating surfaces you'll be in for some hard work to clear it off.
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Scott · September 12, 2026
Work great
I have used POR15 for many years on my Painted boat trailer. I’ve repaired surface rust and painted over the coating and had no problems in those areas since.
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Steve · September 12, 2026
still waiting to see how it holds up
I had a local independent auto repair shop clean and treat surface rust on floor pans of Jaguar e type. Looks good so far. Time will tell. They seemed satisfied with the product, and I respect their opinions.