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Waterproof Blue: High-Performance DPM for Ultimate Moisture Protection and Waterproofing - Waterproof Flexible Membrane

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Intelligent Membranes

Polymer emulsion that transforms into a waterproof flexible membrane (DPM).

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Application

Product application:

  • Purpose: Provide a seamless, fully waterproof barrier to protect internal and external surfaces from water ingress.
  • Substrates: Suitable for masonry, concrete, cement boards, timber, plasterboard, and existing stable finishes.
  • Typical areas of use:
    • Behind tiles in showers, wetrooms, and bathrooms.
    • On floors and walls prior to the application of final finishes.
    • Balconies, terraces, and external walls for weatherproofing.
    • Around service penetrations, junctions, and vulnerable detailing points.

Preparation:

  • Ensure all surfaces are clean, dry, and free from grease, dust, loose particles, or laitance.
  • Fill and smooth gaps or cracks before application.
  • Prime highly absorbent surfaces with a compatible primer if required.

Application method:

  • Apply by brush, roller, or spray.
  • Ensure even coverage with a minimum of two coats for optimum performance.
  • Apply each coat at 90° to the previous one for complete coverage.
  • Maintain minimum wet film thickness as per manufacturer’s guidance.

Conditions:

  • Ambient and substrate temperature: Minimum +5°C during application and curing.
  • Protect from rain and frost until fully cured.
  • Allow product to cure fully before tiling, rendering, or applying finishes.

Clean-up:

  • Clean tools and equipment with water immediately after use

Description

Waterproof Blue

Liquid-applied waterproofing membrane for internal and external applications. Designed to create a continuous, seamless barrier against water ingress on a wide range of substrates, including masonry, timber, cement boards, and existing finishes. Its distinctive blue finish allows for clear visual inspection during application.

Key features:

  • 100% waterproof once cured.
  • Bonds to most common building substrates.
  • Seamless, flexible coating – no joints or overlaps.
  • Blue finish for application visibility and quality control.
  • Water-based, solvent-free, and zero VOC.
  • Easy to apply by brush, roller, or spray.
  • Suitable for wetrooms, bathrooms, kitchens, balconies, and external walls.

Typical uses:

  • Behind tiles in wetrooms and showers.
  • As a waterproof layer beneath flooring or wall finishes.
  • External protection for walls, balconies, and terraces.
  • Detailing around penetrations and junctions to prevent water ingress.
  • Intelligent Membranes

General information

Color

Blue

Finish

Anti-slip

Guidance for specification option:

Slight rubber like polymer coating

Material

Polymer

Guidance for specification option:

Polymer emulsion, liquid DPM.

Shape

Formless

Guidance for specification option:

Liquid.

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

25 year

Uniclass

Pr_25_57_65_60 Plastics sheetsPrimary
Ss_32_20_30_15 Cold-applied liquid floor damp-proofing systems
Ss_32_80_03_14 Cold-applied liquid waterproofing systems

CAWS

J31/353 Waterproof coating

J30/130 Cold-applied damp-proofing

J40/345 Cold-applied bonding compounds

Q26/230 In situ polymeric surfacing

J30/10 Cold-applied damp-proofing

SKU Code

IM/00WPBS10

Product range

Waterproofing Paint

Specification data - Plastics sheets

Classification data

Product reference

Waterproof Blue: High-Performance DPM for Ultimate Moisture Protection and Waterproofing.

Material

Polymer emulsion.

Purpose

Damp-proof membrane.

Performance characteristics

-

Elongation to break

To DIN 53504, >250%.

Environmental performance requirements

-

Environmental rating

Class M1.

Volatile organic compounds (VOC) emissions level (maximum)

<5 ppm.

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0%.

Form

Liquid.

Physical properties

-

Colour

Blue.

Weight (minimum)

1.2 kg/L.

Manufacturer guidance

Density.

Components

Suitable tiling glues: cement glue class C2 or dispersion glue class D2TE, according EN12004.

Adhesion

Red brick Porotherm: 1.6 N/mm², Concrete brick: 1.4 N/mm², Sand cement screed: 1.3 N/mm², Concrete tile: 1.6 N/mm², Ytong Brick: 1.0 N/mm².

Manufacturer guidance

To ISO 4624: 2016.

pH

9.0.

Solids

>50%.

Crack bridging

>3.5 mm.

Manufacturer guidance

To NBN EN 14981.

Water absorption

2.14 to 5.27 g.

Guidance for specification option:

Normal: <20 g.

Manufacturer guidance

To NBN EN 14981, Part A7.

Watertightness

Watertight and water impermeable to NBN EN 14891 part A7.

Temperature resistance

-30°C to +100°C.

Guidance for specification option:

After curing.

Application temperature

>5°C.

Consumption (per layer applied)

0.8 kg/m².

Guidance for specification option:

Dependent on substrate.

Manufacturer guidance

Minimum consumption.

Sustainability data

Contains Red List materials

No

Country of material origin

Europe

Country of product manufacture

Europe

Manufacturing plant location

Material

Polymer

Guidance for specification option:

Polymer emulsion, liquid DPM.

Recyclability

Not recyclable due to its adhesion to other products

Manufacturer guidance

Recyclable as a solid content. Consult manufacturer for details.

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Expected Life

Lifetime

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
-

1

IFC
-

1

Literature

Waterproof Blue DPM Install guide

Waterproof Blue DPM Install guide

Waterproof Blue DPM Technical Data Sheets

Waterproof Blue DPM Technical Data Sheets

Waterproof Blue Liquid DPM - Impermeability

Waterproof Blue Liquid DPM - Impermeability

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