Insoluble sulfur is an important rubber additive agent. It improves product quality, wearability and resistance to both fatigue and ageing. In addition to being universally recognized as the best vulcanizing agent, it is widely used in the manufacture of tire, rubber pipe, shoes, cable and wire insulating materials, latex, all kinds of automobile rubber parts and is also a necessary component of belt tires. Therefore, due to its non-blooming characteristic, insoluble sulfur is widely used in the manufacture of radial rubber and other synthetic rubber products, also in the light-colored rubber products in which common sulfur is incorporated in high proportion.It allows a more solid adhesion of the rubber, prevents the rubber from breaking apart and improves resistance to heat and tyre wear, and is therefore an essential raw material in tyre production.
ADVANTAGES
- No blooming during the storage of rubber, keeping the performance of rubber composition to avoid bad adhesion to rubber due to the bloom. Pollution between rubber and mould is thus prevented.
- No transfer in an adjacent adhesive layer, keeping the surface of rubber for adhesive molding.
- A reduction in scorching in mixing and storage.
- A reduction of sulphur by shortening curing time for improvement of ageing property of rubber products.
- Strengthening of adhesion rubber to other materials.
- High stability and dispersion, minimum 40% insoluble sulphur remained with test temperature condition 120℃×15min.