Never Flat Sealant 250ml

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When a puncture occurs, NEVER FLAT is forced into the opening by internal air pressure and upon contact with the outer atmosphere, bonds to the tyre creating a permanent seal of fl exible fibres. Permanently Seals punctures in the tread area up to 6mm in diameter. 250ml sufficient for up to two tyres.Never Flat should last an average of 2-4 years depending on factors such as: temperature and humidity in your area, how often you ride, where you store your bike (cooler is better), tyre casing thickness, number of punctures the sealant has already sealed that you never knew you had. Show more