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HydroBond 2K-Flex

HydroBond-2K-Flex A radon gas certified, bitumen/rubber waterproofing membrane used primarily for the external waterproofing of earth-retaining structures such as basements and foundation walls. Forms a thick, highly flexible barrier to water ingress that can be applied to fill voids, cracks and joints.

Environmentally friendly and solvent-free, HydroBond 2K-Flex consists of two components; a bitumen emulsion and a reactive powder. These two components chemically react when mixed to produce a firm, yet still highly flexible coating that can be applied by trowel or by airless spray machine. Adhering insulated panels to concrete, masonry and thoroughly dried thick bituminous coatings, 2K-Flex dries quickly and is rain-fast after a short period.

HydroBond 2K-Flex requires two ancillary products, HydroBond 2K-Flex Primer and HydroBond 2K-Flex Mesh.

HydroBond 2K-Flex Primer

A fast-drying bitumen emulsion primer and bonding agent that is applied to the substrate prior to the application of the Newton HydroBond 2K-Flex reinforced bitumen waterproof coating. The product adheres well to concrete, masonry, plaster and most other common construction substrates.

HydroBond 2K-Flex Mesh

A reinforcing mesh made from woven fibreglass yarns and coated with an alkaline resistant latex which prevents the alkaline present in cement from degrading the glass fibre.

Key Benefits

Typical Waterproofing Applications

Technical Data

Key Benefits

Thick coating, fully-bonded seamless waterproofing membrane with excellent crack-bridging capabilities.
Particularly easy trowel application due to low material weight.
Fast reaction time due to the special powder catalyst.
Highly flexible with 2 mm crack bridging due to high-quality polystyrene and polymer modification.
Quick-drying and rain-fast after a short period.
Solvent-free, non-toxic and odourless.
Non-flammable – No VOCs.
Radon gas resistance.
Sprayable with suitable equipment.
Adheres insulating panels to concrete, masonry and thoroughly dried thick bituminous coatings.

Typical Waterproofing Applications

Continuous Type A waterproofing and radon protection of retained structures, together with Newton HydroBond pre-applied membranes.
Type A waterproofing and radon membrane for basement, foundations and earth-retained walls.
Smoothing of irregular surfaces prior to application of bitumen-based membranes.

Technical Data

Cured Performance	Result
Colour	Black
Membrane thickness – two coats	4.0 mm
Compressive strength – Class C2A	0.30 MN/mm²
Crack bridging ability (no reinforcement) – Class CB2	>2 mm
Resistance to fatigue movement – 1000 actions @ -10°C	Pass
Dimensional stability at high temperature – no sliding	Pass
Flexibility at low temperature	Pass
Water vapour resistance – SD value	26.3 m
Water vapour resistance – μ value	6575 μ
Water vapour resistance	132 MNs/g
Water tightness -W2A	0.075 N/mm²
Water resistance – 21 days at 21°C	Watertight
Durability of water tightness and fire behaviour	Pass
Radon gas diffusion resistance (4 mm membrane)	1.13 x 10^-11 m²/s
Reaction to fire classification (Euroclass)	E

Downloads

Download Newton HydroBond 2K-Flex TDS

Download HydroBond 2K-Flex Declaration of Performance

Download HydroBond 2K-Flex Primer Safety Data Sheet

Download Newton HydroBond 2K-Flex Safety Data Sheet

Product Data

HydroBond 2K-Flex

Product code: HB-2K

Packaging: 30 litres

Application rate: 5.6 Litres/m²

HydroBond 2K-Flex Primer

Product code: HB-2KP

Packaging: 10 Litres

Application rate: 0.2 Litres/m²

HydroBond 2K-Flex Mesh

Product code: HB-2KM

Packaging: Roll 1m x 50m

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