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SILASTIC™ MS-1002 Moldable Silicone A&B Kit

A medium viscosity, high Shore A hardness, two-part, 1 to 1 ratio, fast curing optical molding resin for producing fine detail with good resistance to environmental aging.


  • Injection or compression molding for primary or secondary lenses, light pipes, light guides and other optic devices


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

  • Color Yes No Clear, Colorless
  • Dielectric Strength Yes No 475 volts per mil v/mil
  • Durometer - Shore A Yes No 74 Shore A
  • Elongation Yes No 80 %
  • Linear CTE Yes No 275 um/m/Deg C
  • Mixing Viscosity Yes No 26250 Centipoise
  • Number of Parts Yes No Two
  • Specific Gravity Yes No 1.07 kg/l
  • Specific Heat Yes No 1.37 J/Kg.K
  • Tensile Strength Yes No 1625 psi
  • Viscosity (Part A) Yes No 40000 mPa.s
  • Viscosity (Part B) Yes No 17900 mPa.s
  • Viscosity - Part A Yes No 40 Pa.s
  • Viscosity - Part B Yes No 17.9 Pa.s
  • Volume Resistivity Yes No 1.00E+18 ohm-centimeters
  • Working Time Yes No 2880 Minutes
  • Working Time in hrs at 25 Deg C Yes No 48
LightFair International Technical Innovation Award

This award-winning moldable silicone provides excellent properties and secondary optics solutions for LED lamp/luminaire applications. Its curing speed is optimized for the injection molding process of silicone rubber, enabling production of plastic-like, smooth surface optics with comparatively high hardness and low surface friction. Its high light transmittance with low attenuation coefficient – combined with high Abbe number – enables lighting companies to design optics for luminaires with high lumen efficiency. High thermal stability ensures the retaining of high transparency – even in harsh environments.

IMAGINE a Brighter Future

Dow creates proven, high-performance silicon-based materials that help you create next-generation lighting. We offer today’s LED industry unmatched experience and know-how for LED lamp and luminaire assembly. Dow lighting experts work alongside your team to test designs, recommend modifications and provide total solutions to your challenges. Our partnership network of molding and optical experts helps our customers develop the best solutions.

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

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SILASTIC™ MS-1002 Moldable Silicone A&B Kit
No Technical Data Sheets are available for this product
Please Contact Dow for additional information.


SILASTIC™ MS-1002 Moldable Silicone A&B Kit

No Regulatory Data Sheets are available for this product

SILASTIC™ MS-1002 Moldable Silicone A&B Kit
Please Contact Dow for distribution options available for this product.