Doing some rust repairs to my truck bed and it will be removed. Thinking about coating the truck’s frame with POR-15 rust encapsulator while it is off. Would like to know the forum’s opinion on this product.
I did the frame, bumpers, winch, and underbody of a '51 Power Wagon about 15 years ago; still no rust. It is impervious to brake fluid, gas, oil, gear lube, lacquer thinner.
A couple of things:
- get and use a fresh air breathing mask, not just a filter. This stuff can do damage to your lungs if you breathe it in.
- follow their directions for metal prep.
I sandblasted the metal, washed with their cleaner, used their metal prep, and covered the POR-15 with Chassis Coat Black.
Use a OV respirator when messing with this stuff. one can develop toxic shock pretty quickly and one of the lasting issues can be heightened sensitivity to chemicals. Not to be a fear monger - but I love the stuff and have personally witnessed what can happen if you mess around with isocyanates (and POR-15).
It is a primer (the best primer I've ever used) and a top coat frame paint called AG111 and it's the best system I've used. They made their name in the bridge painting game. In my experience way less prep sensitive. You really need to knock the scale and any loose stuff off for any product but I've put this stuff over roughed up painted surfaces and it really holds. Not cheap but most of your cost will be labor (don't forget to value your time!) anyway so a few extra shekels doesn't bother me. Buy some paint stripper wheels (be sure to verify your grinder doesn't exceed the wheels rpm rating, or better yet get a variable speed grinder) and maybe an air needle scaler. Better yet have the frame blasted!
Of note as mentioned these frame paint systems are all highly toxic so I don't recommend spraying unless you have a real ventilator system.
I needle scaled my frame and gave it the POR 15 treatment.
AND... My oil pan is an absolute abomination with rust and age..and JB weld (no judgement please)
I would need to lift the engine to replace the pan and that is not in the cards at the moment.
I called the POR 15 customer service line asking questions regarding which, if any, of their products could help..
I was curious since they have patch and putty products as well.
The guy was super knowledgeable and helpful. He recommended I use their degreaser, then metal prep, then the Rust Preventive Coating like it was fiberglass resin.. alternating the coating with fiberglass matt to build up the layers and reinforce the pan. He said it is impervious to the oil, and the temperatures as well.
So that project is on my schedule for the end of the month.. yay me!