Berryman - Tire Seal-R Sealant with Pump, 1 Gallon Bottle (1301)

Used this on a set of passenger car tires (mid-sized SUV). Cheap winter tires and rims that the dealership sold us with our new car 8 years ago. Car was always kept in a warm garage and heated parking, but when left outside on occasion, the tires would leak a little air. Not a big deal initially, but as we live in Canada and get some really cold weather, it became an ongoing issue. Over time, the tires lost more air and couldn't even be in the cold long enough to run a small errand before deflating significantly. Various tire shops charged us various amounts to check for leaks; none were ever found. Purchased this and some new valve cores as a last resort before buying new tires. Fully expected the tires to go way out of balance and not be usable on the highway. To my surprise, no balance issues and the tires have held air so far this winter - even leaving the vehicle outside on purpose in cold weather to determine if the tires are still losing air. Very satisfied and this is probably the most cost-effective spend on vehicle repairs I have ever experienced! Berryman saved us from buying a new set of winter tires!

I used Stan's for my bicycle tires for several years, good stuff that works, but when my quart bottle finally ran out, a replacement was outrageously expensive: $40 plus shipping. A gallon of Berryman was $43, shipping free. Reviews on Berryman were positive, so I ordered.So far, it's good - more viscous than Stan's, hope that it'll seal punctures better. Cleans up more easily with water. The biggest advantage was price - about 25% that of Stan's. Plan to try it in my motorcycle tires, too.

Used it on my car which had a very slow puncture that I wasn't able to find. After pouring the stuff in the tire (very easily done by the way) and rolling a little bit it didn't seem to be working but after I went for a real ride of about 35km the puncture was sealed! There are a lot of dirt road around my home and it is regular to have slow puncture so I'll be using it preventively on all four tires. There is enough stuff in the gallon for 2 sets of 4 tires if not more depending of the tire size.

I really don't know what the hype is all about. Tried to get some other product that had rave reviews, couldn't get my hands on it. Tried this one as it was so highly rated. Used it on my atv as I had a slow leak that would deflate the tire in about a day. Put in Berry's and next day it was flat. Pumped it up and went for a 100km ride. Came back poured some soap water on the small hole, still leaking. Now it lasts for about a day and a half. Now I got to return this stuff, get a new tire and get this junk out of my other 3 tires. At least it rinses out with water quickly.

I knocked off one star (wished there was a 1/2 star option) as I cannot comment on how long it will work and I found the pump to be messy. I added this product to aged and leaky pressure washer tires and moving dolly tires a few days ago and they are maintaining pressure. I even noticed a little leakage of the product around a tire bead which indicates where the air was escaping previously. Next job is to add to my ATV tires. Will give me added piece of mind while out in the bush. As mentioned above, it is easy to use and appears to work very well.