I have a guy I work with who has a POF Nickel Teflon coated upper and lower. The finish they put on is crap in my opinion, it scratched with a brass punch. So I am trying to Duracoat it for him in a nice SL tactical black. Well me being the smart guy that I am accidentally knocked it off the shelf it was drying on onto another shelf and when I picked it back up it looked like I had taken a rattle can to it and the paint was chipped. Is this teflon coating preventing the Duracoat from adhearing properly to the metal? I did rough up all the surfaces with a 300 grit sanding block, I degreased it all and I did the phos pretreatment on it. Any suggestions?

Are you sure it wasn't just the fall that did that?

Also be extremely careful - any oil contamination after degreasing can affect the bonding and cause it to flake off. That includes: Fingerprints, ultra-fine oil leaching out from strange places (under magnification rings, from assembly pins, etc) and any surface contamination. Make sure you glove up and don't physically handle any of the parts after degreasing and cleaning, up until your done spraying every layer and its started to cure. Surface preparation is everything when it comes to duracoat. It doesn't matter how nice it looks on day one, it matters how much time you spent prepping it if you want it to last.

Also, for maximum strength, duracoat cures in about 3-4 weeks, with most of its strength available in about 3-4 days. If you dropped it in its first 3-8 hours, it may have not been strong enough at that point to resist anything.

I've accidentally dropped a loaded ammo can onto a relatively fresh duracoated gun (1-2 weeks). Didn't scrape it off. I had spent a lot of time purposely 'blushing' the finish (making it look and feel like parkerization) and the 30 lbs ammo can from 4-5 inches just knocked the roughness down and put a smooth, glossy stripe on the poor bastard where it slid. Made me feel like an idiot...