B’Laster Surface Shield Anti Rust for Metal – Rust Prevention for Tools, Equipment & Moving Parts – Long-Lasting Corrosion Protection with Lanolin-Based Formula – 1 Gallon

I'm convinced it's a great product; I used it on a camper that sits at the beach all summer in the salt air. The frame and underneath are rust free and show no signs of corrosion. I applied it with a cheap air gun I got a harbor freight which did the job. I first washed the underneath then after drying applied it to all surfaces underneath to include the support jacks. The coating is a moist finish but doesn't seem to have dirt stick to it from the wind, also a bonus hornets and ants are not a fan, so it helped with insects. I should of taking some photos. The one thing to remember is applying is some work using an air compressor and spray gun.

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.

This is my second bucket of B’laster Surface Shield, and it continues to protect tools and equipment perfectly through harsh winter conditions. Forms a reliable barrier against rust without leaving a sticky mess, and it doesn’t interfere with use. Spray it on hand tools, power tools, or moving parts, and you can trust it to keep metal surfaces safe from corrosion. Excellent product and well worth keeping on hand.

This stuff went on great, and it really sticks extremely well to metal. It's a major pain to clean up, though, because it's so tacky. But to me, that just means it's going to stay on my frame for a very long time. Try to avoid getting the product on your hands, unless you want to wash them for an hour. Latex gloves are your friend. Also, using a tarp to avoid getting this stuff on your garage floor would be a great idea.

I've gone through probably 5 gallons of this stuff. Fantastic product. Great quality and seems to last. Offers great protection for the winter months on the bottom side of my vehicle. It does have a little bit of odor but not a bad smell. Great value for the money. You will definitely want the woolwax gun to spray it with. Packaged nice, no leakage.

Works great. I have used it in fairly cool weather - bring it indoors so it gets nice and warm and it flows and sprays just fine. I use it in my Wool Wax gun. Friends and relatives are using it on their vehicles now. It seems that a gallon per vehicle is about right to do a thorough job. Exposed underside could use a touch-up in a year or two if you drive through a lot of rain. I also use it on my trailers. Unlike some similar products it does not leave a nasty lingering odor. Nice all around.

I bought a gallon of Surface Shield a few years ago. That gallon was a bit more viscous than the one I bought most recently. So we can say that the formulation has changed or they made a boo boo when then made the recent batch.

Excellent product. I sprayed about 1/2 gallon on an F150. I’ve washed the truck three or four times at a car manual carwash this snowy winter and it appears that wall the coating is still attached in the wheel wells. This spring I’ll clean off the dirt, and add another coat. Easily clean up with water.

I bought a bucket of this and one of fluid film with a Rodac spray gun. I have to say this stuff is much lower viscosity which makes it a lot easier to get it out of the gun. You don’t have to preheat this stuff to get it to flow and it doesn’t smell as bad. I did one vehicle with each type so we will have to see which one remains on the underside longer over the next winter. I’ll post comments after if I am able to but for now I feel this stuff is worth the extra money.

Did not use it yet, will undercoat my trucks soon, but from what is said about this product online, and my own experience with other products, I have no doubt this is the best product out there right now!! Yes, better than fluid film...

I wish there was larger quantity size available (5gallon). This product is thick, creeping, stays liquid (does not harden) and overall the best undercoating on the market along with fluid film, without the strong odour. Recommend spraying in warm/mild temperatures, in cold weather need higher PSI. Thick and lasts long. Solid choice, will buy again.

Very easy to spray, highly recommend for cavities and inside the frame rails

I have reviewed and watched video on You Tube on this product and I found the information and testing observations provided to be very interesting. The mere fact that it will withstand the water splash of rain or snow and still maintain its protection were convincing enough for me to try the product. From Canada, the only place I could find this is in Princess Auto only in a spray can which is not enough for a vehicle under spray. I ordered the 1-Gal Pail directly and arrived through Canada Post without any hassle or problem encountered. I scheduled our Toyota Sienna for an under spray with my mechanic. I watched the spraying being done, quite liberal on its application even within the inner holes of the vehicle frame and door panels. A 1 Gal pail is just right for a van with a few cups of the materials as excess. Not a drip was wasted nor falling on the floor. When I parked our vehicle in the designated garage parking area I did not see any dripping of the solution used. Will monitor the situation as time goes by. I ordered another gallon for my Honda Civic which I will also schedule for under spraying. I think it is worth the investment with the type of protection the Surface Shied will provide to you investment with your vehicle.