B'laster 5-SS Surface Shield Bulk 5-Gal Pail, Multi

Seems to spray on easier. Smell is slightly less offensive. Not as thick. Seems more like oil.

Great undercoat sprays on nice and sticks great

Vary good stuff

Just working great under my truck after a year is still holding strong

Works great, after a season driving on salted roads I pressure wash the undercarriage for summer then reapply in bare areas prior to the new season. It’s easy to work with and much better than paying someone to do it for me

I found this easy to apply... I initially used a brush to make sure I got into the crevices and hard angles... before going back over it with the undercoating gun.The frame on my F150 was largely rusting from the inside out... the outside looked pretty good, but the inside was a scattershot with deep corrosion (see pics).... so I replaced a lot of that metal and wanted to get a good coat of this stuff inside the frame. I used the 360 attachment with the flexible hose on the sprayer and had absolutely no problems getting all the parts inside the frame since this stuff sprays pretty easily (probably a 70 degree day).I had the truck bed off and had this sit in the hot sun for almost a month before I got everything back together. It became a more durable waxy film in that time and I resprayed everything again when I reassembled it.I didn't have much overspray and didn't waste much, I don't think I used much more than 1/2 gallon for this treatment.One of my concerns with this product is that it might be flammable if subjected to very high heat. Before trying it on the truck, I had sprayed some on test metal and hit it with a propane torch to check how sensitive it was to heat. That test turned out really good where this stuff smoked/steamed but never flared. It seemed to leave a waxy residue that continued to shed water when it rained over the next few days.It worked so well that I hit another vehicle that I was having rust issues with... but accidentally got some on some areas that I had yet to repair inside the frame. So, I cautiously welded on the area and observed good amounts of smoke/steam billow and watched as it liquefied and dripped down the frame rail... but no flaring. It seemed to pass that test quite well, too.

Not only does this stuff prevent rust, it stops it now! You spray this stuff under your car, in the doors, in the rockers, inside your fenders, etc, and it stops any rust you have from ever spreading anymore, and stops any new rust from forming! It is messy, and does have a slight smell for a week or two, but if you want you car or whatever to last in the northern salt, use this stuff now!

I have used about 25 gallons of this undercoating. I have done 5 cars and trucks of my own. I have done a van, CRV and a Ford SUV for friends. It can take me 6 hours or so for me to do one vehicle. I coat the inside of the frames and all of the rails. I do drill 1/2" holes if I need to get into spots that I can not reach. It will drip in the summer time when the temperature goes up. It will get on your concrete, but it cleans up with mineral sprites.