As has been stated in numerous prior reviews, this product is outstanding. This fact, however, cannot be under-emphasized: Proper surface preparation is vital to the success of your project. You can coat over rust - in fact the POR-15 website FAQ states that the coating works best over rust. I agree with previous reviews that this is definitely a bare metal coating. In other words, don't apply it over painted, greasy, or loose crumbly rust. Follow the instructions to the letter and you will be amazed at the results!!
My project was restoring some suspension parts for my '58 Chevy custom street rod. I'd purchased a set of control arms off Ebay. The seller stated clearly that these were not show quality but good strong driver quality parts. He was correct but under the painted surface was much pitting and corrosion. They'd been attached to some old clunker in a wrecking yard that, over the decades, had sunk into the ground. Once I got the paint off I realized that bead-blasting would not remove the pits.I determined that hand sanding the pieces down to clean smooth metal was my best strategy. While that worked well for most surfaces there were some places that were just too badly pitted to safely remove it all. With various shapes & sizes of wire brushes. grinding pads and air motors I knocked off all the rust I could get at and smoothed as many pits as possible. After a thorough degreasing I applied the metal prep spray which is a mild acid wash with zinc phosphate added. Air drying leaves the zinc film and a light flash rusting which is exactly what the POR-15 ceramic resin wants for a bonding catalyst. Application with a brush was simple and produced gorgeous gloss black results. The coating is self-leveling and filled completely all but the very worst spots on my control arms. The pieces were smooth as glass, Seriously! I only have one small regret: Further internet study revealed that the coating is UV-sensitive and doesn't hold its beauty under continuous exposure to the sun. They say it will start to get milky looking pretty quick.This is just a cosmetic issue, but I was so happy with the beautiful results I was going to leave the pieces just as they were.
Now, I'll wet sand them and cover with primer & paint.
The coating is super stout. In prepping and applying one side of my pieces I would get POR-15 on the other side and would have to get it removed. Wipe it off while the coating is still wet because once it cures for even 12 hours it is tough as porcelain. Don't get it on you either... you'll be wearing it for a good number of days. Here's a tip I discovered: The kits come with latex gloves. After you've finished an application take one of the gloves and stretch it over the can then push the lid on. It provides an effective seal and your expensive can of coating won't dry out or set up. Of course, when the can gets really low there is enough air inside to trigger the curing and you'll loose some no matter what you do.
This is a great product. Best I've ever seen. Follow the directions. :-)
| Brand | POR-15 |
|---|---|
| Color | Gloss Black |
| Finish Type | Gloss |
| Size | Large |
| Item Volume | 4 Fluid Ounces |
| Unit Count | 1.0 Count |
| Item Form | Aerosol |
| Age Range (Description) | Adult |
| Model Name | 45009 |
| Coverage | 12 square feet |
| Manufacturer | POR-15 |
| Item Weight | 1.79 pounds |
| Product Dimensions | 10 x 6 x 12 inches |
| Item model number | 45009 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 45009 |
| OEM Part Number | 45009 |
