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SILASTIC™ LS-4940 Fluorosilicone Rubber

Developed to provide good handling in combination with high-temperature resistance and fluid resistance, this product is a 40 Durometer, Fluorosilicone Rubber Base specially designed for calendering and extrusion of turbocharger hoses. They also are suitable for molded parts requiring higher heat stability and/or improved fluid stability.

Benefits:

  • Good balance of tensile, elongation and tear resistance
  • Good heat stability with good tear retention
  • Low compression set
  • High fuel resistance
  • Compound flexibility by application
  • Reduced stickiness when unwrapping and mill-handling

Properties

These values are typical properties and are not intended for use in preparing specifications.

  • Color Yes No Off-White
  • Compression Set Yes No 15.4 %
  • Durometer - Shore A Yes No 40.6 Shore A
  • Elongation Yes No 622 %
  • Rebound Resilience Yes No 12 %
  • Tensile Strength (SI) Yes No 10.6 MPa
  • Young Modulus Yes No .68 MPa

Fluorosilicone rubber bases with optimized performance for competing demands

Turbocharger hose

Developed to provide good handling in combination with high-temperature resistance and fluid resistance, SILASTIC™ LS-49XX Series Fluorosilicone Rubber Bases are specially designed for calendering and extrusion of turbocharger hoses. They also are suitable for molded parts requiring higher heat stability and/or improved fluid stability.

Mill-handling performance improvements

See the improved handling of SILASTIC™ LS-4940 Fluorosilicone Rubber Base (compared to our historic base).

Historic SILASTIC™ FSR Base
Video demonstration: Note the handling performance of rubber formulated with a historic SILASTIC™ FSR Base.

SILASTIC™ LS-4940 FSR Base
Video demonstration: Note the reduced stickiness and improved handling performance of rubber formulated with our new SILASTIC™ LS-4940 FSR Base.

  • SILASTIC™ LS-4960 Fluorosilicone Rubber

    Developed to provide good handling in combination with high-temperature resistance and fluid resistance, this product is a 60 Durometer, Fluorosilicone Rubber Base specially designed for calendering and extrusion of turbocharger hoses. They also are suitable for molded parts requiring higher heat stability and/or improved fluid stability.


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SILASTIC™ LS-4940 Fluorosilicone Rubber
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SILASTIC™ LS-4940 Fluorosilicone Rubber


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SILASTIC™ LS-4940 Fluorosilicone Rubber
Please Contact Dow for distribution options available for this product.