My table saw surface had developed some rust where fertilizer had spilled. I neglected cleaning it up and where it dried on my table saw rusted. I sprayed Free All on the rusted area and buffed it with steel wool and it removed all the rust.I then used a scotch brite pad and my drill to polish the entire surface and finished it all with paste wax.Good product! I purchased 2 cans.sprayed it on, waited a few minutes and it worked. Easy peasy.Freed up rusted bolt on car engine very eadyGreat product for loosening tough rusted fasteners but shipping containers are not strong enoughLo eficas contra el oxidoIt actually worksVery impressed with this product! I've been using penetrant oils since the 80's and I decided to try a can of this stuff. I had bad luck a few years ago removing an o2 sensor. I was needing to replace another and decided to give this a try.I sprayed down the o2 bung and drive shaft bolts the day before I was going to work. The next day the area I sprayed all the rust looked like it dissolved. The exhaust was looking like it was nearly new. I was surprised how well it cleaned up the pipes.So then I went to remove the o2 sensor. To my shocking surprise I didn't need to heat the bung, it broke free quickly. This stuff did a nice job and make this job so much more frustration free. I'm sure the can will last me a long time but it's a product I have no regrets purchasing.I used this product to loosen some small metric thread screws that had become rusted into brackets due to battery leakage. I sprayed the product onto the exposed but corroded threads. After about five minutes I was able to remove the screws without farther damage. The only problem I found is the product smells like the old model airplane glue.This is one product that does exactly what it says it will do. My husband and son works on all vehicles including transport trucks. Since trying this product, it is the only one they use. I now order by the case. We have used this for several years and will continue to do so. It is truly a remarkable product.Used it to loosed up a very stubborn bold. It took a few applications and a drill to pull it off.pour suspension auto