Thanks to the addition of microscopic silicate particles caff233latex now moves more slowly through holes allowing the sealing ingredient more time to heal the puncture these particles are not of macroscopic size eg glitter 150 300 microns but are instead microscopic particles less than 2 microns in diameter please read the mbuk39s six of the best guide to tyre sealants thus caff233latex flow characteristics change on a microscopic level without the headaches of valve cloggi