Below Grade Bitumen Membranes

Below Grade Bitumen Membranes

LONGSEAL Self Adhesive Waterproof Membranes

Longseal membranes are cold applied, CE-certified membranes suitable for a range of waterproofing applications.   They utilize a rugged, cross-oriented HDPE (high density polyethylene) film to a layer of rubber-modified bitumen adhesive.  The HDPE-backing provides superior product performance in terms of tear strength, tensile strength, puncture resistance and dimensional stability.  Additionally, Longseal membranes conform well to a variety of site applications

In addition to the Longseal (LS) 100, Chase offers the Longseal GR (Gas Resistant) WBX (winter-boxing) which provides added protection from methane and radon gases.

Product Benefits Include :

Immediate bond to the substrate Factory control thickness
Cold applied – no heat required Cross-laminated HDPE carrier
Zip strip for overlap integrity GR provides methane/ radon barrier

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LONGSEAL GR (Gas Resistant) Membrane

Longseal GR is an advanced CE Approved waterproof membrane capable of resisting the passage of methane gas.

  • Independent certification for the suppression of Methane and Radon Gas
  • Excellent overlap integrity due to bitumen joint
  • Factory controlled thickness
  • Rapid and easy application
  • Flexible and accommodating giving excellent bond to the substrate
  • Non-hazardous and resistant to dilute acids and alkalis

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LongSeal LS100

LONGSEAL LS100

LONGSEAL 100 is a high performance, cold applied CE Certified waterproof membrane, manufactured from tough cross-orientated HDPE film to a layer of rubber modified bitumen adhesive.

  • Rapid and easy cold application
  • Flexible and accommodating giving excellent bond to the substrate
  • Non-hazardous and resistant to dilute acids and alkalis
  • Resistant to incidental exposure to oil and gas.
  • High-performance protection against a surface and groundwater and soluble salts such as sulfates and chlorides

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