Originally Posted by
msu2001la
How does tubeless sealant seal a huge blow hole in a tire/sidewall, but if the valve nut is slightly loose or you have a tiny wrinkle in the rim tape, it's game over? Related - How does this stuff not immediately jam up valves any time you let air out? I sometimes get little spews of sealant out of my valves if I lower the pressure, but it doesn't seal up the valve.
I am on team tubeless here - but this stuff is a complete mystery to me.
It hasn't happened with all my valves, but I have had some get clogged with sealant. Sometimes I can successfully clean them out. Sometimes not. Guessing...The inside end of the valve stem being raised up from the inner surface of the rim keeps the sealant from reaching it (mostly).
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RIP 01/08/25...2022 Trek Supercaliber, 2018 Storck Fascenario.3 Platinum, 2018 Trek Procaliber SL Singlespeed, 2017 Bear BR1, 2003 Time VX Special Pro, 2001 Colnago VIP, 1999 Trek 9900 singlespeed, 1977 Nishiki ONP