Cannon Sports Ball Repair Sealant for Soccer, Basketball, Volleyball, & Playground Balls (Pint, 16 Ounces)

I followed all the suggestions by other reviewers and this stuff worked perfectly. We live in the desert southwest and our basketball court is surrounded by cacti and agave. I know, not the most logical thing to do, but that's the situation. We have four basketballs lying around that have been punctured at one time or another over the last three or four years. My youngest son had a nice behavioral accomplishment (I won't get into details) so I rewarded him with a new basketball. Needless to say, within about 45 minutes it had been punctured by an agave. I had cut off the spines from all of the agave, but apparently I had missed one. That was the last straw. Instead of buying another ball, I decided to try to patch them all. I found this stuff and it worked like a charm. In summary: 1. Partially deflate ball. I inserted a ball inflation needle without the pump and just squeezed the ball to let air out. 2. Push in 1 oz (30 mL for all the metric people) through the ball inflation needle using a 5 mL medicine syringe (thanks to reviewer who suggested this!). Obviously, it takes 6 syringes-full if it's a 5 mL syringe. It may take less because one time I forgot how many times I had used the syringe. I may have only put in 25 mL. 3. Inflate ball to normal pressure. 4. Take ball out and bounce it for a few minutes. 5. Enjoy your new, rock-hard ball. Of all the balls in the yard, only one did not work. This was one where my son had stapled duct tape to the ball with a staple gun in hopes of patching the holes. There were also some deep gouges in the ball. Surprisingly, the air stopped leaking out of 3 of the 4 staple gun holes, but some of the holes were just too large for this to be effective. In other words, if your ball has a gigantic gash or hole in it, this probably won't work. I highly recommend this product for basketballs. Not sure why it didn't work for other people....`

I bought this and used it on 3 different balls. The Hoppy Ball, had a pin size hole. Had to try it 3 times but after allowing it to sit with it overnight the hole was finally sealed. It's made of a light weight plastic or rubber material. The second Hoppy Ball is a heavy gauge plastic/rubber and had a bigger hole. I tried and tried and could not get this leak to seal. The third was a light weight plastic see-through ball. Just a cheap thing. Small hole but could not get a seal. Attemtped 4 times then finally it exploded leaving me covered with this goop! So, I say it depends on the material and size of hole, but even when it works it is a mess.... Sorry! Would NOT recommend!

I bought some discount soccer balls, high end pro-quality at half price, turns out the bladders were leaky. So now how do I keep them from leaking? Enter Ball Sealant. The rubber sealant stays a viscous liquid inside the ball, 1 oz or so for each ball and bounce it aggressively. Seems to have plugged slow leaks on several soccer balls...I hope it is a permanent fix, it seems to work fine. The problem is finding an applicator and minimizing mess. Try Ball Doctor plastic applicator syringe with this. Balls stay bouncy and fully inflated, no leaks so far. Similar to Slime Tire Sealant or Ball Doctor.

I worked on about a dozen balls, some still leaked after the process. Most of them leaked around the valve stem. I replaced the valves too but I still have some semi flat balls.

I am a soccer coach, I unfortunately have a large amount of soccer balls that deflate and many that I need to retire after even one season. I was able to use this product on 18 balls, 2 were not recoverable, 16 more are still inflated. Each ball is about $30-60...so saved almost $400.00 with this one bottle.

The package states that the contents are a clear, viscous liquid, but what I received was blue and lumpy. I was unable to get it into a ball using any standard needle valve. I tried to inject it with a needle valve connected to a syringe, but the liquid was either too thick or too lumpy, and it would not go through the valve. I thought perhaps I just received a bad bottle, so I arranged to return it for an exchange, but unfortunately the replacement was just like the first one. Too bad it didn't work, because the concept is great.

Nine of my eleven volleyballs were leaking air from their valves, and I was getting tired of pumping them up each time I train my daughter. I tried all the Youtube DIY fixes to no avail. So I ordered this stuff as a last resort. It worked for every ball! I used these syringes bought here on Amazon... https://www.amazon.com/gp/product/B01MDR7KLP/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 And tried with 30 ml first, three syringe fills, because I was afraid of weighing the balls down too much. Anything less than this amount never worked. Try this amount first, then add more if needed. My daughter did not feel a weight difference. I stored the balls at first with the valve down so that the goop would seal the valve better, but I'm not sure if that was needed. This stuff worked for me. Good luck.

Was hopeful that this might work on volleyballs. Our schnauzer managed to bite a tiny hole in two of them. We used a glue injector to put about an ounce of puncture seal in the volleyballs before filling them up. As soon as we put a little air pressure in them, the puncture seal comes out of the hole. Too bad -- would have been very useful.