Insoluble sulfur is a non-toxic, inflammable yellow powder, it is allotrope of common sulfur, it is linear polymer molecular polymerized by a large number of sulfur atoms. Insoluble sulfur do not dissolve in dioxide sulfur and other solvents , do not dissolve in rubber, so it is called insoluble sulfur or polymeric sulfur and chemical name is polymer sulfur, short name is IS. At present, most of the insoluble sulfur used in rubber industry.
Insoluble sulfur is a new rubber vulcanizing agent. It forms IS-series oil - treated and non oil-treated products. It is used as the best vulcanizing agent for rubber. For it can overcome much ordinary sulfur's shortcomings, besides improve the quality of the rubber product. We are able to offer all types of superior insoluble sulfur, such as IS-HS-8010, IS-HS-7520, IS-HS-7020, IS-HS-6033; IS-60, IS-90 and so on.
Advantage of Insoluble Sulfur:
a)The rubber no need spout frost during storage time. The Insoluble Sulfur is able to keep the unanimous features of the rubber material, and prevent the pollution to rubber product and the models
b)With Insoluble Sulfur, there will be no transferring phenomenon between rubber layers that protects the moulding stickiness of the surfaces
c)Reduce coking while mix smelting and storage
d)Shorten vulcanization time, reduce the dose of sulfur and improve the property of anti-aging of the product
Product Specification / Models
(IS-HS-6033 highly thermal stability)
Appearance: Yellow Powder (Non-flying)
Sulphur Content (%): 67.0 minus or plus 1.0
Insoluble Sulphur Content (% min. ): 60
High temp. Stability (% min. ) (105 degree*15min): 75
Oil Content (%): 33. O minu or plus 1.0
Acid Content (As H2SO4), % max.: 0.05
Heating Loss (60 degree *2h), % max.: 0.40
Ash, % max.: 0.15
Fineness(100mesh), % min.: 99.8
Application / Models
Insoluble sulphur OT33 (IS-HS-6033) had been widely used in natural rubber and a variety of synthetic rubber. They are made with tire and rubber products such as: Rubber Belt, Rubber Pipe and Sealants etc. They are specially used in Radial Truck Tire making.
Wuxi Wanli Chemical Co.,Ltd.,was established in early 1999,situated in the western suburb of Wuxi City， specializes in manufacturing Sodium percarbonate ,we owns superior technology and whole set of production facilities and all kinds of advanced instruments used in inspection.Currently the annual output reaches 30,000 tons.Wuxi wanli chemical is one of the main sodium percarbonate manufacturers with large production scale,good quality .Now the product is exporting to Japan ,S.Korea,USA,
Belgium ,Germany,Danmark , and so on totally 55 countries.
In 2008,the shareholder of Wuxi Wanli invested 20 million RMB ,founded a new factory weifang jiahong chemical co.,ltd ,located in Changyi Coastal Economic Development Zone,Weifang city, Shandong province , produce Insoluble sulfur . Factory covers an area of 150 acres ,production capacity reaches 10000mt/year ,now we are key producer of Insoluble sulfur in china . Our main products are high heat stable IS-HS-series, high dispersive IS-HD series . Our factory cooperating with universities on technical innovation to keep technical progress, we owns superior technology. Our factory has very advanced facilities and all kinds of instruments used in inspection, and established ISO9001 Quality Management System guaranteeing our manufacturing superior products. Our Company has been acknowledged and trusted by many large and medium sized rubbed-tire manufacturers for our good quality, competitive price and hospitality service. Our products can fully meet the market demand home and abroad, and have gained high reputation.