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SILASTIC™ 9250-40 Liquid Silicone Rubber

Low density, 40 Shore A hardness liquid silicone rubber, featuring low viscosity for optimum processing and high resilience for optimum performance.

Uses:

  • Food dosing valves
  • Closures and dispensers
  • Seals and gaskets
  • Food contact applications

Benefits:

  • Low density 
  • Food contact: Formulated to meet requirements of BfR XV recommendation and of FDA 21 CFR 177.2600
  • Low viscosity for enhanced process performance 
  • Low compression set for reliable sealing 
  • Weight reduction
  • Can be separated from higher density plastics in recycling process

Properties

These values are not intended for use in preparing specifications.

Typical Properties

  • Elongation Yes No 590 %
  • Hardness Yes No 39 Shore A
  • Specific Gravity Yes No 0.97
  • Tensile Strength Yes No 3.4 MPa
  • Viscosity - Part A Yes No 210 Pa.s
  • Viscosity - Part B Yes No 190 Pa.s
Red boat floating in water for floating LSR

Our new low density liquid silicone rubber (LSR) enables the separation of silicone valves and closures from higher density plastics in the recycling stream. This is key and not possible with standard density LSR that do not float on water due to their higher density. This boat represents our new floating LSR. Thanks to its low density, the LSR parts float at the end of the gravity-separation recycling operations. The floatability is decisive for separation processes in the recycling of materials. 

Get to know our first low density liquid silicone rubber

SILASTIC™ 9250-40 LSR features low viscosity for optimum processing and high resilience for optimum performance. Discover how it contributes to the recycling process.

No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.

No Food Contact Letters are available online for this material
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SILASTIC™ 9250-40 Liquid Silicone Rubber
No Technical Data Sheets are available online for this material.
Please Contact Dow for additional information.

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SILASTIC™ 9250-40 Liquid Silicone Rubber
Please Contact Dow for distribution options available for this product.