wuxi huasheng chemical additives factory engaged in insoluble sulfur and rubber adhesive for many years, we can able to produce insoluble sulfur IS60,IS90(Non oil), OT20,OT10,OT33,IS6005(Withoil), Insoluble sulfur (IS), which is an excellent rubber vulcanizing agent, is broadly used in special rubber products such as tires, especialy for radial tire, rubber tubes, cables, and sealing elements， the details of insoluble sulfur OT20: 1) Physical appearance: fine yellow powder 2) Elemental sulphur%: 80.0? 3) Insoluble sulphur (min.)% (on total S): 90.0 4) Oil content %: 20.0?.0 5) Acidity (as H2SO4) (max.)%: 0.05 6) Ash content (max.) %: 0.15 7) Heat loss (max) %: 0.5 8) Fineness/ retention on (wet screen) 100 mesh (max.)%: 0.2 if you have any other question please contact me: E-mail: personnel*huasheng-chem.com Philipcandy521*yahoo.com.cn contact person: Ms candy Mobile: 8613812033739 TEL: 86-510-3213718 FAX: 86-510-3213758