KBS Coatings 75100 Cavity Coater 17.5 fl. oz.

Used it on a replacement hood and it worked great. Dries, so it is easy to handle afterwards.

Used this stuff for years. It coats very well and lasts for years. Did a restoration 8 years ago and used it on the rockers, after the vehicle was hit at the door/rocker area, I removed the rocker and the coating was still doing it's job great. The coverage was great and there was absolutely no rust, rot or oxidation of any sort. This was a Chevy truck that was daily driven in all weather. Highly recommended KBS , I use it with every car that rolls out of the shop.

coated a piece of steel and left outside in the weather for a year. No rust where i sprayed kbs. The rest of the steel was total rust. So rust proofing in automotive doors ,quarter panels,fenders that is'nt in direct weather is awesome.

The spray wand is well made and worked good. Only problem was the wand's connection at the plastic tip (at the can) came apart about ten times using two cans.Time will tell but the material appears to flow nicely into the thin opening near spot welds.Very expensive for a metal can with cheap industrial raw materials. If used in the few places it should be used on (inside rockers, door pinch welds, cab corners or spot weld panels) its probably worth it. Given the price of new trucks, the brine spray used everywhere and the various types of salts used now a days.

Works great. It cover the metal and inside doors well and dries to a waxy finish. Yes, it is a thin coat, so you will have to reapply every few years. Nothing lasts forever and still flows well into all the cracks and crevices. Not sure why other uses did not like it, but worked well on 3 of my cars with no rust showing after a salty winter. Best to apply a rubberized undercoating, then utilize this spray for cracks, crevices, seams, edges, and inside doors.