B'laster Surface Shield – Rust Protectant Spray and Undercoating for Vehicles – Long-Lasting Corrosion Protection with Lanolin-Based Formula – 12oz Aerosol Can (6 Pack)

After a lot of research, I'm glad I went with Blaster Surface Shield Corrosion Protection. I shook the cans really well and had no problems (read a lot of complaints about the cans not working properly). 2.5 cans did my 4Runner and Jeep Wrangler Unlimited, both good size SUVs. Used in conjunction with the Instant Aerosol Trigger handle to achieve great, efficient application. Hopefully the lanolin will last at least two years as advertised, but you can't beat the price. Next time I'll use a lift!

Excellent product. Stays where you put it. Also appears to be a good lubricant - I had a rear hatch latch handle on Honda Fit that was sticking because of rust (common problem with Fit). Pulled the latch, cleaned off rust scale, sprayed with this and wow, latch hasn't worked this well all the while I've owned it.

Do the research, or trust the pros. Surface Shield is a fantastic way to treat a vehicle underside and inside of panels. Buy it by the case for best economics, which is what I do here on Amazon. Seller is great as well, with sensible shipping and pricing.

I read and watched a dozen reviews before I bought it and I was not disappointed. I WOULD recommend this for a DIY undercoating.Pros- easy to use, not expensive, works itself into the crevices, stays put, easily washes off of the drivewayCons- gets a little messy (wear gloves), nozzle clogs (blow out w/ air), hard to spray into box frame

I use this on lathe chucks and the ways of my metal working machines. They are stored in a shop that is not heated or cooled unless I'm actually working there. That means parts that aren't--and can't be--protected by paint are very prone to corrosion due to condensation.This stuff works great to prevent rust! After cleaning-up the machine after working, I spray the ways, chuck, and other bare metal surfaces with Blaster Surface Shield. It hangs on very well, and does an excellent job of protecting against rust. It's a little pricey, but it has completely stopped the rust I was occasionally finding after wiping down my machines with way oil or motor oil.

The product seems to work well after its applied. Two cans did not dispense everything. One can the bottom was bulged out like a dome. There was hardly anything in that one. The rest worked great. Not enough for two applications on my truck.

Good stuff if you live in the rust belt.

I bought the six pack after looking for a good undercoat for rust prevention recommended from the Repair Geek YouTube channel. I bought the surface shield cans and the Amazon recommended extension wand. The wand leaked more product under the cap than the blaster factory cap, so I had to throw it away. It just doesn’t sit right or seal correctly. The other cans leaked from under the factory cap and covered my hands and driveway any way. They also clogged up occasionally. I’m going to try fluid film next bc no one seems to have issues with them or the extension wands. I did use a gallon of surface shield with my compressor sprayer and had no issues, but wanted the cans and longer thin wand for small areas hard to reach. Too bad, I really wanted the cans to work but they are junk. What a mess, look at some of the pics in other reviews that’s exactly what happens.***update on Fluid Film can*** I tried fluid film can and wand instead of the surface shield. The wand that came with FF leaks just as bad. I guess I’m staying away from cans on both products.