ImmerSeal® HD

A high strength, low modulus, elastomeric, pre-cured silicone sealant that is used to span gaps and create a watertight seal in a variety of applications, particularly those where puncture and tearing resistance is needed. ImmerSeal HD is used to achieve permanent, watertight sealing solutions in applications where a high-strength sealant is required.

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Product Type

High Strength, Elastomeric, Pre-Cured Silicone Sealant

Product Description

ImmerSeal® HD is a high-strength, elastomeric, pre-cured silicone sealant designed to span gaps and create watertight seals in demanding environments. With low modulus and excellent elasticity, it offers superior resistance to tearing, UV exposure, and corrosion, making it ideal for long-lasting joint sealing applications.

Key Benefits

  • Temperature Flexibility: Performs in both cold and hot conditions across a wide operational temperature range.
  • Non-Corrosive: Formulated to be non-corrosive and corrosion-resistant for a variety of substrates.
  • UV Resistant: Resists degradation from UV exposure and weathering.
  • Exceptional Movement: Offers movement capacity of +100% / -50% for dynamic applications.
  • Improved Aesthetics: Color-fast formulation available in standard or custom colors.
  • Customizable: Available in multiple sizes and configurations for versatile project needs.
  • Tear and Puncture Resistant: Delivers a strong, durable seal that resists mechanical damage.

Best For

  • Expansion joint seals (new and remedial construction)
  • Window system seals
  • Window perimeter joint seals
  • Curtainwall seals
  • Metal building applications
  • Roofing seals
  • Shipping container seals