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400-103 is one of our single-component, moisture-curing silicone pastes that cures to a low to medium modulus, rubber-like solid.

The cure mechanism is neutral (oxime), and this general purpose silicone cures on exposure to moisture in room temperature air. 400-103 is a non-flowable, non-sagging paste product presenting an excellent balance between rate of cure, adhesion, and physical properties. It is non-corrosive to metal substrates such as copper, aluminum, and ferrous metals (with adequate ventilation).

This ready-to-use adhesive sealant skins over in 5 – 10 minutes, and bonds to most common substrates without the use of a primer. With a lower odor than conventional acetoxy cured silicones, it is used in any area where the weather and environment needs to be sealed out.

  • Made in USA
  • Proposition 65
  • VOC Compliant
How to Buy
  • Applications
    • Substitute for Mechanical Fasteners
    • Formed-in-place Gaskets
    • Sealing Refrigerator & Freezer Liners
    • Adhering Plastic Moldings
    • Waterproofing Electrical Components
    • Sealing Coaxial Connectors
    • Protecting Instrumentation Assemblies
  • Packaging and Lead Times
    This product is available in the following formats:
    • 10 ounce cartridge
    • 55 gallon drum

    Lead times are:
    • 20 business days
  • Specifications
    • Physical Properties
      Form Cure Chemistry Appearance Specific Gravity Extrusion Rate Skin-Over Time (min) Durometer Shore A Tensile Strength (psi) Elongation (%)
      General Purpose Oxime Cure Aluminum 1.00-1.05 30-80 @ 50psi 5-10 20 +/-5 140-180 500-600
  • Downloads
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