dry produced N220

iodine absorption number 121±7 
oil absorption number 114±7
Tinting strength 108－124
heating loss ≤2.5
300％modulus at a definite elongation －2.3±1.6

N220 is suitable for each kind of rubber, the resistance to wear is higher than N330 10%-20%, it makes colloidal particle rubber high longitudinal strength and the anti- peel strength, and has the certain electrical conductivity. It has mainly been used in the carrying tyre, tread rubber, and rubber product with high strength needed, radial tire,bias tire and high wear-resisting.