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immerseal-hd-logo-hires - Product Description

Sealex ImmerSeal® HD is a high strength elastomeric pre-cured silicone sealant that is used in a variety of construction related waterproofing applications.  ImmerSeal® HD is typically bonded to substrates using a premium silicone adhesive sealant such as ImmerBond® High Performance Adhesive Sealant, which has been designed specifically for this purpose.  ImmerSeal® HD is specially formulated for high strength and resistance to puncture and tearing and is commonly used in horizontal applications such as metal roofing in which strength and tear resistance is critical.


immerseal-hd-logo-hires-sm - Features

  • High flexibility and movement capability
  • High tear & puncture resistance
  • Ease of installation allows for low labor cost
  • Color fast formulation
  • Wide operational temperature range
  • Resistant to UV exposure and weathering
  • High strength makes it ideal for roofing and other horizontal applications
  • Capable of sealing high movement joints
  • Non-corrosive and corrosion resistant
  • No fasteners required for installation


These photos show ImmerSeal® HD installed in metal building applications.


immerseal-hd-logo-hires-sm - Areas of Application

ImmerSeal® HD is specifically designed for numerous sealing applications including but not limited to:

  • Metal buildings
    • Roof to wall transitions
    • Roof height change details
    • Joints between new and existing buildings
    • Ridge conditions
    • Various repair applications
  • Roofing
  • Expansion joints (new & remedial construction)
  • Window systems
  • Window perimeter joints
  • Curtainwall
  • Shipping containers
  • Many others!


immerseal-hd-logo-hires-sm - Standard Products

ImmerSeal® HD pre-cured silicone sealant is adhered to substrates using silicone sealant such as ImmerBond® High Performance Silicone Adhesive Sealant and is available in standard sizes ranging from 4” to 12” in width with a nominal thickness of 2 mm (~0.08”). Standard profiles are rolled up flat in 50 or 100 ft increments on 3 inch cores, protected by side shields and packaged individually. ImmerSeal® is readily available in the following standard sizes and colors:

Standard Sizes: 4", 6", 8”, 12”

Standard Colors: Gray and Translucent

Custom Colors: Available

Click here for ImmerSeal® HD Technical Datasheet
Click here for ImmerSeal® HD SDS