The Rubber sector has been and continues to be an important market for WhitChem.
Some of the key suppliers and products on offer include:
Industrias Negromex S.A. de C.V. (INSA) is a company engaged in the manufacturing of latex and synthetic rubber mainly for tyre, footwear, industrial rubber goods, adhesives and sealants, chewing gum, non-woven materials, paper coatings and textile industry. Its operating unit is located in Altamira and has a capacity of 96,000 TPA. It was founded in 1961 and from April 2016 became part of Grupo Dynasol. The product range can be summarised as follows:
Cold SBR is available in both non-oil extended and oil extended types for tyres and general rubber industry usage.
Paracril NBR grades are produced by cold and hot polymerization process. The cold process yields linear polymers with good processing characteristics and solubility in polar solvents. The hot polymerization process leads to more branching. Branching in the hot Paracril grades is more developed in the higher viscosity grades. The hot polymers offer improved green strength. Crosslinked Paracril NBR grades are unique in processing and function.
Imerys Carbonates offers a comprehensive portfolio of fine ground (GCC) and Ultrafine calcium carbonate products for use in an array of rubber applications. Fine ground carbonates are used in a wide range of rubber applications as high loading extenders, improving rheological properties and process ability of the compounds with little or no impact on the hardness or other mechanical properties. Surface treated grades can be used to ease handling and improve its dispersion within the compound. Ultrafine calcium carbonates can also provide a certain level of reinforcement. Carbonates are also utilized for low permanent set performing rubber goods and can be used in clear or black compounds, sometimes alone (mainly in natural rubber), and often in combination with Carbon Black or Silica. Key features include whiteness, processability, extrudabilty and reinforcement
Imerys Kaolins portfolio for Rubber includes ultrafine Kaolin, Calcined Kaolin, surface treated Calcined Kaolin and Ball Clay. Calcined Kaolin offers superior reinforcement, excellent extrusion and compression set, all important properties to the designer of rubber compounds and articles. When included in cable insulation compounds, Calcined Kaolin and surface treated Calcined Kaolin improve mechanical and electrical properties, reducing energy losses in power transmission. Our range includes grades for use at all voltage levels, Polestar 200R for low voltage cables, through Polarite 103A for medium voltage, to the world leading Polarite 503S for high and very high voltage cables. Ball Clay, offers more reinforcement than Kaolin, as a result of its finer particle size. Often referred to as hard clay, it gives excellent compression set and abrasion resistance. A common application for ball clays is in the shoe soling and rubber floor mat industry.