SCJ is a cold joint sealer that is applied onto vertical edges and surface base before the application of asphalt. HAPAS approved since 2005, SCJ prevents water ingress which improves bond and prolongs the life of your repair. Can be used in all weathers. Simple and economical to apply. No waste. Approved for use on the London Underground and Overground. Calculation based on approximately 150 linear metres per can – dependent on thickness applied. NBS Plus registered for ease of specification.