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Delta LM 800 - liquid gas membrane

Verified by manufacturer 2 months ago

Delta Membrane Systems Ltd

Liquid membrane achieving damp proofing, waterproofing and ground gas protection simultaneously.

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+44 (0)1992 523523 Website


  • Delta LM 800 Liquid Membrane is suitable for damp proofing, gas proofing and waterproofing a variety of substrates including concrete, masonry and metal, above and below ground level including retaining walls, cast concrete, precast concrete and steelwork.
  • Designed for use in applications where combined damp proofing and gas protection are required.


Delta LM 800 is robust and flexible liquid membrane which performs excellent under high compressive loads and offers maximum protection in just one application.

Features and benefits:

  • Waterproof and damp proof.
  • Multiple physical properties, including resistance to methane, carbon dioxide and radon.
  • Complies with BS 8485:2015 + A1:2019.
  • Resistant to ground water in accordance with BS 8102:2009.
  • Particularly suitable for complex detailing and difficult to reach areas.
  • Fully bonded system.
  • Continuous application - no sealing required at construction joints/laps.
  • Can be applied to damp surfaces or newly poured concrete.
  • Quick drying.
  • Can be applied by brush, roller or airless sprayer.

General information






Pr_25_57_21_35 Gas-resistant damp-proof coursesPrimary


J30/130 Cold-applied damp-proofing

J30/110 Cold-applied tanking

Specification data - Gas-resistant damp-proof courses


Liquid membrane.


To BS 8102:2009 and BS 8485:2015 +A1:2019.

Applied thickness (minimum)

≥1.0 mm.

Methane permeability

To ISO EN 15105-1, <12 ml/ m²/ Day/ ATM.

Sustainability data

Contains Red List materials




Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %


Delta LM 800 Product Data Sheet

Delta LM 800 Product Data Sheet

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