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Insoluble Sulfur Hdot20 - China

price: check with company for price

Insoluble sulfur (Insoluble sulphur) HDOT20 (Crystex HDOT20)

Technical Specification:
Appearance: Non-dusting yellow powder.
Total Sulfur Content %: 79.0-81.0
Insoluble Sulfur (On total Sulfur) % min: 90
Thermal stability (105℃x15min) % min: 80
Thermal stability (120℃x15min) % min: 45
Oil Content%: 19.0-21.0
Acidity (H2SO4) % max: 0.05
Heating Loss (60℃x4h) % max: 0.50
Ash Content % max: 0.15
Fineness (100 mesh) % min: 99.5

1. The compound will be non-blooming during the storage period, can maintain uniform performance of rubber components, overcome the compound disadvantage of poor adhesion 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 HDOT20 products, which is also has high thermal stability, high dispersion and the most resistant to convert or restore to ordinary sulfur in the rubber processing temperature, so it can improve the safety and dispersion when compound refining in a high temperature.

1. HD-OT20 products are widely used in natural rubber and various synthetic rubbers.
2. It is can be used for manufacturing tires, rubber belt, rubber tube, seals and other rubber products, especially for radial tire.

Packaging and storage:
1. It is wrapped in PP woven bag lined with PE plastic bag, net weight is 25Kg/bag.
2. 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.
3. Shelf life is one year.

Company Contact:

  • Phone: 0086-13296263292

  • Address: Pudong New District, Shanghai, Shanghai, China

  • Email: Email

Published date: July 30, 2016 -

  • Business Description: Leader Technologies Co., Ltd is the largest & leading manufacturer and supplier of Rubber Chemicals in Shanghai China. Leader Technologies united by 3 plants (One rubber adhesive & antioxidant factory, one insoluble sulfur factory and one rubber functional auxiliary agent R&D factory), every factory was ISO certified and operated under ISO system.

    With the advantage of modern logistics and convenient transportation in Shanghai, our products exported to North and South Americas, Canada, Korea, South-east Asia, Middle East, Africa, India, Iran etc. Our products are widely used for tires, rubber tube & belts, plastic and so on, and wined good reputation in the market at home and abroad.

    As a professional manufacturer, advanced production equipment and precision testing instruments have been adopted in our plants. Leader Technologies also focus on the research and development of new functional auxiliary agents for rubber & tire industries. We have strong R&D ability and team, with the investment and expansion of capacity step by step, Leader Technologies aims to become a large-scale & respected international company.

    Leader Technologies Co., Ltd supplied:
    30,000MT/year Rubber Adhesive (HMMM & HMMM65%)
    20,000MT/year Insoluble Sulfur (HD-OT20 & OT33)
    10,000MT/year Phenolic Resin Adhesive
    20,000MT/year Rubber Antioxidant (DTPD, IPPD, 6PPD & TMQ)
    25,000MT/year Functional Auxiliary Agents

    At the same time, Leader Technologie can be as a purchasing agent and dedicated to provide one-stop procurement services for all the customers, help customers to find available products, control products quality and so on.

    We insist on the tenet of quality prospering corporation, regard the “Zero defect product” “zero defect quality” and “zero defect service” as our supreme goal during production and operation. We also advocate clean production, adhere to the scientific concept of development and follow the path of sustainable development.

    Leader's peoples will keep hard working to supply you with high quality products, competitive price and quick delivery on time. It is our honor to work together with you.

    Trust us, you will gain more from us.

    Key words:
    rubber chemicals, manufacturer, supplier, three plants, R&D, ISO certificate, tires industries, rubber adhesive, insoluble sulfur, rubber antioxidant, phenolic resin, anti-scorching agent, functional auxiliary agent, rubber release agent, rubber brightening agent.

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