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Waterproof Blue Liquid DPM (5KG) - Brush applied Liquid DPM

Waterproof Blue Liquid DPM (5KG) - Brush applied Liquid DPM

£69.99 GBP
£69.99 GBP
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excl. VAT

💙 Waterproof Blue – 5KG

Precision Waterproofing. Brush Applied. Built for Structural Protection.

Waterproof Blue 5KG is the brush-grade version of our high-performance polymer waterproofing membrane — designed for controlled application on foundations, floors, and critical detailing areas like window reveals.

This is structural waterproofing made simple. It blocks water, stops vapour migration, resists UV degradation, and cures to form a seamless, flexible membrane that won’t crack or disintegrate over time.

Perfect where accuracy matters and rollers aren’t practical.

🏗 Ideal For

  • Foundation walls

  • Concrete floors & slabs

  • Basement detailing

  • Window reveal waterproofing

  • Upstands and junctions

  • Tight or intricate areas requiring brush control

Especially suited for detailing around openings where water ingress risk is highest.

🛠 Application

  • Apply using a paintbrush

  • Ideal for precision work and controlled coverage

  • Creates a seamless, joint-free membrane

No corner reinforcement required — saving installation time.

🔵 Why Choose the 5KG Brush Version?

  • 🎯 Detail-Friendly Application – Perfect for reveals and junctions

  • ☀ UV Resistant – Suitable for exposed areas

  • 💧 Vapour Blocking Technology – Protects from moisture migration

  • 🔧 High Crack-Bridging Properties – Handles substrate movement

  • 🧱 Strong Adhesion to Concrete & Cement Surfaces

  • ⏳ Flexible, Durable Finish – No brittle failure over time

🧪 Techy Corner (For the Specifiers)

Waterproof Blue is a polymer-based, liquid-applied waterproof membrane that cures into a flexible elastomeric barrier.

  • Designed for vertical and horizontal structural applications

  • High adhesion to cementitious substrates

  • Crack-bridging performance

  • Seamless monolithic membrane formation

  • Maintains elasticity after curing

Once applied and cured, it forms a continuous waterproof layer protecting structural elements from water ingress, vapour penetration, and environmental degradation.
  • Details
  • Uses
  • Technical Data
  • Download
  • FAQ
  • Dries to a flexible membrane solution with high crack bridging properties
  • Application with roller or paintbrush
  • UV resistant
  • no corner reinforcements required upon application.

Suitable Substrates

Waterproof Blue is the ultimate replacement for traditional plastic membranes like DPCs and DPMs. Designed for superior waterproofing, it can be applied to any area where you’d typically use plastic membranes — such as on top of block and beam floors and the upstands of kicker blocks—creating a seamless, airtight, and watertight barrier for your project. This advanced, VOC-free, water-based solution can be effortlessly applied with a roller or paintbrush, ensuring quick and easy installation. Plus, it provides added protection
against radon, enhancing the safety and durability of your build.

Application

  • STEP 1 – Fill the joints between the surface, and the draining and tubes with a paintable waterproof sealant. When these joints are < 5mm, enlarge these
    before applying the sealant.
  • STEP 2 – Apply the Waterproof Blue, waterproof paint membrane with a longhaired roller in two coats. Coverage in 2 layers is minimal 800gr/m2, or 2 layers of approx. 400 gr/m2 depending on the roughness of the substrate. Second layer to be applied crosswise on the first layer, when the first layer has dried out.  Make sure to check for complete coverage.
  • STEP 3 –When the second layer of Waterproof Blue, water proof paint membrane has dried out (24 to 48 hours after application), apply tiling as finishing. Suitable tiling glues include: cement glue class C2 or dispersion glue class D2TE, according EN12004

Product Collection:Waterproof Blue
Size:5kg

Waterproof Blue Liquid DPM Brush - Technical Data Sheet (TDS)

Waterproof Blue Liquid DPM Brush - Install Guide

Waterproof Blue Liquid DPM Brush - Safety Data Sheet (SDS)

At Intelligent Membranes, we help architects, contractors, retrofitters and self-builders achieve airtightness and waterproofing targets with liquid-applied systems. Our flagship airtight system, Passive Purple®, is airtight at all times yet breathable when the building fabric needs to release vapour — we call this intelligent breathability.

Read more...

Why Choose Waterproof Blue Brush?

Waterproof Blue Brush is designed for precision where rollers can’t reach. It allows installers to maintain full system continuity around corners, penetrations, edges, and detailing areas while delivering the same seamless waterproof membrane as the main Waterproof Blue system. Ideal for first coats, tight spaces, and remedial work, it ensures there are no weak points because true waterproofing is only as good as its details.

Key points:

  • Perfect companion to Waterproof Blue for edges, penetrations, and tight areas
  • Brush application allows precise control where rollers can’t reach
  • Maintains the same seamless, flexible waterproof membrane
  • Ensures total system continuity-no weak points
  • Ideal for first coats, detailing, and repairs

Shipping & returns summary

We, at Intelligent Membranes, would like you to be 100% satisfied with your purchase and our service. In the unfortunate event of any item being unsuitable or wrong, please read the following for advice on returning goods to us.

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Watch Waterproof Blue Liquid DPM (5KG) - Brush applied Liquid DPM in Action