Tonight I put Honda Flat Proof in my tires. Following the directions, I removed the valve stem, cut the tip of the bottle off, attached the fill tube then.....squeezed the bottle until my eyes bulged out! It kept clogging the valve stem. I tried pumping the tire up and letting the air out to clear the valve stem and even used a nail to clear the blockage in the valve. I tried jacking the wheel up, and leaving it on the ground. I couldn't find an easy way to get it in. Its a little late to ask now, but whats the trick?

 

Now that you mentnion it I too had the same problem..the hose kept poping off I squezed so hard.. I warmed the bottle up on our heat vent in our house to get it all in.. slime doesnt seem to be so chunky
JOe

 

One secret is to have the bottle at room temp before using & then to have your tire valve at 4:00 o'clock or 8:00 o'clock, as you prefer, before trying to insert it into the tire, thus allowing the gorilla snot to run downhill away from the valve. Try to get as much air out of the tire as possible first as even a pound or less can prevent the stuff from entering easily.