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

Verified by manufacturer 13 hours ago

Intelligent Membranes

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

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Application

Waterproof Blue – Liquid Damp Proof Membrane (DPM)

Product Application – Waterproof Blue

General

Apply in accordance with the manufacturer’s written instructions to form a continuous, seamless damp-proof and waterproof membrane.

The membrane shall be applied to create a monolithic barrier free from joints, laps or mechanical fixings.

Substrate Preparation

Substrates shall be:

  • Structurally sound
  • Clean and dust-free
  • Free from laitance, grease, oil or loose material
  • Dry or surface dry (no standing water)

Cracks and surface defects shall be repaired prior to application.

Sharp edges and protrusions shall be removed.

Environmental Conditions

  • Minimum application temperature: +5°C and rising
  • Do not apply to frozen substrates
  • Protect from rain or standing water until fully cured

Application Method

  • Ready to use – do not dilute
  • Stir thoroughly before application
  • Apply by roller or paint brush
  • Work evenly across the surface to achieve full, continuous coverage
  • Ensure complete coverage at corners, junctions and upstands

Particular attention shall be given to:

  • Floor-to-wall junctions
  • Internal corners
  • Pipe penetrations
  • Construction joints

Apply sufficient material to achieve a uniform, pinhole-free membrane.

Coats and Coverage

Apply in accordance with recommended coverage rates to achieve the required dry film thickness.

Where necessary, a second coat may be applied once the first coat is touch-dry to ensure full waterproof continuity.

Curing and Overcoating

Allow the membrane to cure fully before:

  • Installing screeds
  • Applying tile adhesives
  • Installing floor finishes
  • Subject to water exposure

The completed installation shall provide a continuous damp-proof and waterproof barrier ready to receive final finishes.

Description

Waterproof Blue – Liquid DPM Waterproofing Membrane

Product Description

Waterproof Blue is a high-performance, liquid-applied damp proof membrane (DPM) that cures to form a seamless, flexible, watertight and airtight barrier on floors and walls. Engineered as a polymer-modified, waterborne coating, Waterproof Blue replaces traditional plastic DPC/DPM systems with a single-component solution that delivers long-term moisture protection while accommodating structural movement.

Once applied, the membrane forms a continuous, monolithic layer with high crack-bridging capability, resisting water ingress, vapour transmission and UV degradation. Its distinctive blue finish provides visual confirmation of coverage during installation.

Waterproof Blue is suitable for both new build and retrofit applications where robust waterproofing is required prior to tiling, screeding or final finishes.

Key Features and Benefits

  • Liquid-applied waterproof DPM forms a flexible, seamless, watertight and airtight membrane.
  • High crack-bridging performance for long-term durability.
  • Polymer-modified, waterborne formulation – VOC-free.
  • Eliminates the need for traditional plastic DPC/DPM sheet membranes.
  • UV-resistant and suitable for internal and external vertical/horizontal applications.
  • Distinctive blue colour allows clear visual inspection of coverage.

Typical Applications

Waterproof Blue is designed to provide reliable waterproofing on:

  • Concrete floors and slab upstands
  • Blockwork and masonry walls
  • Bathrooms, wet rooms, steam areas and showers prior to tiling
  • Kicker blocks, terraces and balconies
  • Around window and door openings where moisture ingress risk exists
  • Basement walls and floor junctions
  • Other areas where traditional DPC/DPM systems are replaced with liquid membranes

Performance Characteristics

  • Forms a continuous, joint-free, waterproof and airtight membrane.
  • Flexible and crack-bridging to accommodate minor substrate movement.
  • UV-resistant and durable against environmental exposure.
  • Can be tiled over once fully cured in accordance with industry standards

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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