For product formulators in industries ranging from automotive and construction to wire and cable manufacturing, selecting the right elastomer is crucial for achieving desired performance and durability. Chlorosulfonated Polyethylene (CSM) stands out as a versatile synthetic rubber, prized for a suite of exceptional properties that make it a preferred material for challenging formulations. As a dedicated CSM manufacturer and supplier, we delve into the core properties that make CSM a valuable asset in your product development toolkit.

At the heart of CSM's utility lies its outstanding resistance to environmental factors. Its molecular structure, featuring a saturated backbone with incorporated chlorine and sulfonyl chloride groups, provides near-total resistance to ozone attack. This property is critical for applications exposed to atmospheric conditions, such as outdoor seals, hoses, and roofing membranes, preventing premature cracking and degradation. Similarly, its excellent resistance to UV radiation and general weathering ensures that products maintain their integrity and appearance over long periods of outdoor exposure.

Another hallmark of CSM is its superior chemical resistance. It demonstrates remarkable resilience against a wide array of chemicals, including strong oxidizing agents, acids, alkalis, and various oils and solvents. This makes CSM an ideal choice for applications where contact with aggressive chemicals is unavoidable, such as linings for chemical tanks and pipes, seals for chemical processing equipment, and hoses used in chemical transfer. The inclusion of chlorine also contributes to its resistance to oils and fuels, often comparable to or exceeding that of neoprene.

Thermal stability and flame retardancy are also key advantages. CSM can withstand elevated temperatures without significant loss of physical properties, making it suitable for high-temperature applications like automotive engine components and industrial belting. Its inherent flame retardant nature, often described as self-extinguishing, enhances safety in electrical applications and where fire risks are a concern, such as in wire and cable jacketing.

In terms of mechanical properties, CSM offers a good balance of tensile strength, abrasion resistance, and flexibility. While it may not match the extreme resilience of some natural rubbers, its durability is consistently high, especially under demanding service conditions. Furthermore, CSM can be formulated in a wide range of colors because it does not require carbon black for reinforcement, offering aesthetic versatility for certain applications like white sidewall tires or colored industrial products.

The processability of CSM is also noteworthy. It can be compounded and processed using conventional rubber manufacturing techniques, including milling, extrusion, and molding. Various grades, such as CSM 40, 3304, and 3305, offer different Mooney viscosities and physical characteristics, allowing formulators to select the optimal grade for their specific processing needs and end-product requirements.

As a leading supplier of Chlorosulfonated Polyethylene, we offer high-quality CSM to empower your product formulations. We understand the intricate details of elastomer selection and are ready to provide technical support and competitive pricing for your sourcing needs. Contact us to discuss your requirements and to purchase CSM that delivers exceptional performance.