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Leader Technologies Co., Ltd
Professional R&D rubber chemicals, including rubber adheisve, insoluble sulfur, rubber antioxidant, rubber accelerator, functional agents and so on.
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Insoluble Sulphur OT33

Leader Technologies Co., Ltd

Insoluble Sulphur OT33

Place of Origin : China

Model Number : OT33

MOQ : 1.00MT

Price : Negotiable

Packaging Details : 25KG/bag, 1.0MT/pallet, 20MT/20FCL

Delivery Time : Within 30 days after order.

Payment Terms : T/T or L/C

Supply Ability : 20000MT/Year

Shelf Life : 12 months

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Insoluble Sulfur (insoluble sulphur) OT33


Non-dusting yellow powder.

Total Sulfur Content %


Insoluble Sulfur (On total Sulfur) %


Thermostability (105℃x15min) %


Thermostability (120℃x15min) %


Oil Content%


Acidity (H2SO4) %


Heating Loss (60℃x4h) %


Ash Content %


Finess (100 mesh) %



  1. The compound will be non-blooming during the storage period, can maintain uniform performance of rubber components, overcome the compound disadvantage of poor adhension because of blooming, and prevent the pollution of rubber products and molds.
  2. There is no transfer phenomena in adjacent fillet, maintain the surface viscosity of compound
  3. Reduce scorching in the process of mixing and storage.
  4. Shorten curing time and reduce sulfur usage to improve the ageing performance of rubber products.
  5. Increase the adhesion between rubber and other materials.
  6. In addition to the above advantages of OT33 products, which is also has high thermal stability, high dispersity and the most resistant to convert or restore to ordinary sulfur in the rubber processing temperature, so it can improve the safety and dispersity when compound refining in a high temperature.

OT33 products are widely used in natural rubber and various synthetic rubbers.
It is can be used for manufacturing tires, rubber belt, rubber tube, seals and other rubber products, especially for radial tire.

Packaging and storage:
It is wrapped in PP woven bag lined with PE plastic bag, net weight is 25Kg/bag.
It should be stored in a dry, clean and cool warehouse; storage temperature should be no more than 40℃. Precautions against fire, moisture, heat and compression agglomerate.
It cannot be mixed with alkaline and amine substance.
Shelf life is one year.


Leader Technologies Co.,Ltd

Add: No.635 Mindong Road, Pudong New District, Shanghai, China.
Cellphone: 0086-15800361700 Tel: 0086-21-61317292

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