Chlorine Resistant Soft Natural Rubber

The proven compounding practice for the natural rubber layer is to load it with 30 phr of graphite, 30 phr of semi-reinforcing carbon black filler and 50 phr of inert filler, china clay. A low sulfur curing system is adopted for heat resistance with a suitable antioxidant to prevent flex-cracking. A typical chlorine resistant soft natural rubber compound formula is given in Table 3.2. 

Table 3.2 Typical chlorine resistant soft natural rubber compound ...

These industries use chlorine and hyposolutions for bleaching purposes and hence ebonite and chlorine resistant soft natural rubber are used as anti-corrosive linings. 

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