This sealing compound (CJ8) was developed to provide strongest adhesion and flexibility when used in flexible surface as well as in concrete, bricks, stone and glass. There are many such materials in use like Rubberized Bitumen, Siliconised Rubbers, Acrylics, Urethane and Sulphate etc.; However if applied properly CJ8 gives far better results.
The Rubber based Bitumen is good only if not heated because once Rubber is treated with heat in presence of Bitumen it become very hard and flexibility is reduced to half; thus reducing its life. Similarly other products mentioned above including epoxy resins are very expensive to use. Thus this product which is made with selected Bitumen and Thermoplastics is best due to the reason that if heated many times it will come back to same flexibility and adhesion on cooling. Moreover, price is only up to 25% to 30% and its ability to heat more than once has advantage over other materials used in the world.