Seals punctures in tyres with inner tubes. When a puncture occurs Dr Sludge is forced out of the hole by escaping air pressure. In this process interlocking fibres along with grouting agents form a permanent flexible barrier to seal the hole.
250ml will do 2 tyres up to 700c.
Easy applicator with valve removal tool included.
Can be used with Schrader type valves or any other removable valves
Electric bike deliveries: We use our own e-bike delivery van so all electric bikes are delivered fully assembled and ready to ride. Please note that we only delivery electric bikes in our local area so contact us if you're unsure whether we cover your area. To view which areas we currently deliver electric bikes to - CLICK HERE.
Cycle accessories are normally shipped using either Royal Mail or small parcels courier service. For returns procedure please contact us.
If an item is marked as Click and Collect then you would have to come to our Durham store to collect the item once it's ready.
Please contact us for our Payment & Security policy.