Liquid Rubber Premium Brush and Roller Liquid Rubber Premium Liquid Rubber Premium Liquid rubber roofing system brush and roller

Brush and Roller Applied Waterproofing System

Liquid Rubber Premium is formulated specifically for hand application and designed for use on smaller projects or where Liquid Rubber Instant Set is not an option.  Liquid Rubber Premium has outstanding adhesion properties and is completely eco-friendly.  Liquid Rubber is a safe alternative to traditional roofing systems and single-plies alike and provides a quick & easy method of renovating or waterproofing new and old roofs.


Liquid Rubber Features

Liquid Rubber Premium, like Instant Set, is an elastomeric membrane system, that fully bonds to the surface and is completely seamless.  Due to its unique formulation, it can be applied to a variety of different surfaces, providing outstanding protection and highly anti-corrosive properties.  Liquid Rubber eliminates the need for stripping old material, providing an ideal over-coating for most substrates, including asbestos encapsualtion.

10 year product guarantee as standard.

Over 1,000% elasticity and 95% memory.

Completely non-toxic, eco-friendly and solvent free.

Suitable for:

  • Concrete and stone;
  • Corrugated asbestos;
  • Metal and plastisol;
  • Insulation boards;
  • Timber;
  • Felt and asphalt;
  • Single-ply membranes, including EPDM;
  • and Glass-Reinforced Plastic (GRP)
Chemical resistance: Resistant to atmospheric, chemical aerosols or acid rain.  Limited resistance to gasoline, diesel fuel and other petroleum products.
Biological resistance: Passed
Water tightness after impact: Passed (no leakage)
Specific gravity g/cm³:

Approx. 1.0

Colour Black
Tensile strength ASTM D412 (p.s.i): >22
Adhesion to concrete strength ASTM C907: (amended to tensile adhesion (p.s.i)) >50
Law temperature mandrel @ -25°C Passed
Crack bridging ASTM C836, un-aged -20°C Passed (70 cycles)
Crack bridging ASTM C836, aged E20°C Passed (10 cycles)
Puncture resistance CGSB 37-GP-56: (24 hours @ 29N @ -5°C) Passed (no perforations)
Water vapour transmission ASTM E96, ng/Pa.sm² >6.6
Water absorption CGSB37 – GP-56M, %inc >2
Accelerated weathering ASTM G155: D412 tensile strength: Passed
Hardness (durometer type 00) 78-80
Colour Black


Form: Liquid
Colour: Brown
PH: 7-13
Specific Gravity: 1.00 (approx)
Vapour Pressure: (mm Hg) 17 @ 20°C (water)
Vapour Density: 20°C (water) >1 (air=1)
Evaporation Rate: <1 (nBuAcetate=1)
Boiling Point: 100°C (water)