Rubber Grade Zinc Use Rubber grade zinc oxide is used in series of products such as steel radial tyre, bias tyre, conveyer belt, rubber tube and tape, rubber shoes, emulsion glove productions etc. Characteristic a. High activity, even granularity, it is possessed of high dispersing ability, has the good promotion curing function, improve the cross-link china density of rubber, enable to make the rubber vulcanization more completely. b. It can improve the viscidity of rubber compound, and the adhesive force of materials such as the rubber, steel wire and code fabric, etc. c. It can make good dynamic performance, make the rubber productd with litter derformation, low heat generation, high anti-abrasion. Enable to have good anti-oxide property. Product performance standards Characteristics Limited Tyre Superior product first Acceptable part Zinc oxide (ZnO)%, ≥ 99.7 99.5 99.4 Metal(cpunted by dried subtances)%,≤ no no 0.008 Lead oxide(Pb)%,≤ 0.037 0.05 0.14 Manganic oxide(Mn)%,≤ 0.0001 0.0001 0.0003 Cupric oxide(Cu)%,≤ 0.0002 0.0004 0.0007 Hydrochloric indissoluble substance%,≤ 0.006 0.008 0.05 Burning decrement%,≤ 0.20 0.20 0.20 Sieve residue(45um)%,≤ 0.10 0.15 0.20 Water dissoluble%,≤ 0.10 0.10 0.15 105℃volatile substance%,≤ 0.3 0.4 0.5