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Hydrocarbon rubber

The company offers new products in its Nordel IP hydrocarbon rubber family that extend the range of EPDM composition for expanded end-use opportunities. Among the new products are high ethylene grades applicable for many uses, a high-diene, high-Mooney amorphous grade designed for the weatherstrip industry, and a semi-crystalline, high-molecular-weight grade of EPDM. The company has extended the range of EPDM composition and applications with the development of two highly crystalline offerings. With significantly higher ethylene content than is currently possible for competitive EPDM grades, these polymers are said to be easily crosslinked using typical sulfur or peroxide curatives or electron beam to give harder, stiffer products, thus opening up a new range of applications, according to the company. Alone or in blends, applications in the general rubber industry includng extruded profiles, molded articles or foams, where users demand high stiffness, toughness or green strength. For weatherstrip applications, a low gel, fast curing amorphous Nordel IP grade has been developed specifically for dense profile and sponge applications. The company has also developed a new grade of semi-crystalline EPDM with ethylene composition in the high 60s wt%. (DuPont Dow Elastomers)

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Silicone adhesive sealants

SS-35 is a thermally conductive one-part silicone RTV adhesive sealant product. SS-35 is said to be unique because it is an adhesive heat sink rubber which is useful in electronic assembly and sealing applications. SS-35 combines a thermally conductive neutral cure RTV silicone with very fast cure times, according to the manufacturer. The room temperature cure speed rate is three times, or 300% faster over comparable one-part RTV adhesive sealants, according to the company. SS-35's cure rate is said to mimic fast acetoxy sealant cure speeds to enable quick turnover in assembly operations. SS-35 is said to enable fast onset of unprimed adhesion to a wide variety of substrates, including aluminum, steel and most plastics. It is a low odor, neutral cure RTV silicone sealant formulated for ease of dispensing in either manual or automated systems, according to the manufacturer. (Silicone Solutions)

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Water-based release

DiamondKote water-based, semi-permanent release agents are based upon a unique, non-transferring chemistry that delivers improved mechanical slip while not sacrificing longevity, according to the manufacturer. Many products are said to have been tested successfully in the automotive markets, including rubber-to-metal bonding applications. These product innovations are said to be working in virtually all types of rubber, including polychloroprene, nitrile rubber, ethylene acrylics, SBR, fluoroelastomers, natural rubber and EPDM. (Franklynn Industries)

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Specialty polymers

The company offers a complete line of specialty polymers. Functional (reactive) and non-functional (unreactive) polymers are currently being manufactured in the company's facility. In addition to the traditional polydimethylsiloxane systems, the company also offers diphenyl and trifluoropropylmethyl functional copolymers. According to the company, many markets, such as adhesives, lubricants and cosmetics, are looking for a silicone supplier to produce a wide range of specialty polymers unavailable anywhere else. The company manufactures and sells these specialty polymers from the one gallon size to multiple drums. The company also provides CV-2568 high performance silicone materials to the aerospace industry. This low density adhesive is said to have been a mainstay within the satellite manufacturing industry. The company developed CV10-2568 as a response to the industry's needs for a two-part, variable cure schedule silicone adhesive. CV10-2568 is a platinum addition cure version of CV-2568. CV10-2568 has a heat accelerated cure system with cure rates as short as 15 minutes, depending on temperature. This platinum cure system has no leaving groups, often translating to less than 2% shrinkage, according to the manufacturer. (NuSil Technology)

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