Been using this sealant for a few years, never put it to the test before today. Picked up a big cable staple in my rear Pilot Road 4. Have plugs, pump etc and so Put it up on center stand and just got to pulling it. Air started out Immediately and the white tacky Sealant. Which frankly I forgot I had installed. So jumped on and rode for 2 mins. Completely plugged, no bubbles when water applied. Rode home happy. Will keep an eye on it but pretty much as advertised. Balances the tire too! The offending staple. Went all the way in. So two good sized holes.