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The GOAT Flexible Waterproof Coating Paint – Roller & Brush Grades

The GOAT Flexible Waterproof Coating Paint – Roller & Brush Grades

Regular price £200.00 GBP
Regular price Sale price £200.00 GBP
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The GOAT is a flexible, solvent-free waterproof coating trusted on everything from single balconies to multi-storey commercial developments. Choose your grade above: the 18kg (Roller) standard-viscosity grade covers large flat areas quickly — flat roofs, basements, balcony and terrace waterproofing — while the 7.5kg (Brush / Poured) thicker grade is a higher-viscosity mix that won’t slump on upstands, parapets, verticals and detail work.

Ideal For: Waterproofing large flat areas of concrete or masonry such as flat roofs, balconies, terraces, basement walls, basement roofs and foundations — with the thicker grade for penetrations, connections and vertical details.

How’s It Applied? Brush, roller or poured (7.5kg grade)

What Makes The GOAT Unique? Unlike standard paints which require a temperature of 5°C or higher, The GOAT can be applied to damp surfaces at temperatures down to 0°C. It handles both positive and negative water pressure, can be left exposed and is UV resistant.

Technical Overview: The GOAT is a quick-drying, solvent-free reactive polymer that adheres to a vast array of surfaces.

Which colour?

White — the solar reflective roof. The GOAT in white reflects the sun instead of absorbing it, keeping roof surfaces up to 30–45% cooler — proven on our Dubai rooftop project, where the coated surface measured 15°C cooler in the full heat of the day. Cooler top floors, less air-conditioning load, longer membrane life. Read more on our Solar Reflective Roofing page.

Black — the classic roof finish. The natural choice for overlaying felt and asphalt roofs and keeping the traditional look.

🔘 Grey — balconies & terraces. A clean, architectural finish for walk-on balconies, terraces and visible details.

Every colour is the same certified membrane underneath — same waterproofing, same 25-year assessed working life.

Tested & Certified — European Technical Assessment

The GOAT is a CE-marked, liquid-applied roof waterproofing kit, independently assessed by ETA-Danmark under ETA-25/0471 (EAD 030350-00-0402):

  • 🏅 25-year assessed working life (category W3)
  • 🔥 External fire performance BROOF(t1) (EN 13501-5)
  • 💧 Watertight — assessed for roofs, terraces and balconies
  • 💨 Wind load resistance >50 kPa
  • 🏋️ Impact & load resistance — dynamic P3, static P4 (special) on concrete
  • 📐 All roof slopes S1–S4 (<5% to >30%)
  • 🌡️ Surface temperatures −20°C to +80°C (TL3 / TH4)
  • 🧵 System includes CORNER BAND and NW MESH T30 for joints, corners and crack bridging

Download the full ETA certificate (PDF) →

Performance data

  • 💧 Watertight — no mass uptake at 150 kPa (EN 14891)
  • 🧱 Crack-bridging 1.15–1.84 mm — versus 0.75 mm required
  • 🧵 ~344% elongation at 1.35 MPa (EN 527-3) — moves with the building
  • ☀️ Cool-roof white — 83% solar reflectance, SRI ~104, stable after 4,000 h UV
  • 🔗 Adhesion — metal & CLT ~1.17, plywood ~0.99 N/mm²; bonds to PVC & EPDM (0.32) for roof refurbishment (EN ISO 4624)

Read the full breakdown: The GOAT: 344% stretch, crack-bridging & cool-roof white.

Quality assurance: Download the free Installation & QA Record sign-off sheet (IM-QA-10) for this product.

Quantity
  • Details
  • Uses
  • Technical Data
  • Data Sheets
  • FAQ

Advantages

  • The GOAT – waterproof coating has high adhesion to various building materials: concrete blocks/bricks, concrete, plastics, various metals, PP, PE, PVC-U
  • Crack-bridging and elastic
  • Waterproofing for both positive and negative water pressure
  • Characteristics are retained even after long and direct contact with water
  • Resistant to freeze-thaw cycles
  • Solvent-free
  • VOC-free
  • UV resistant
  • Fast rain resistant
  • Quick drying time
  • Can be used on damp surfaces
  • Free of isocyanates
  • Concrete blocks/bricks,
  • Concrete
  • Plastics
  • Various metals
  • PP
  • PE
  • PVC-U

APPLICATION:

– With suitable brush or roller in 1 or 2 layers.
– Clean equipment with the The GOAT Cleaner.
– Do not clean material with water!

Product Collection:The Goat
Applied By: Brush or Roller
Sizes:18kg
Colours:Black/White (Upon request)
Coverage:2kg per 1sqm

This product adheres to

  • Concrete blocks
  • Bricks
  • Plastics
  • PP
  • PE
  • uPVC
  • Roofing insulation boards (PUR, PIR, XPS, EPS)

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 The GOAT – Roller Applied? (18KG)

The GOAT – Roller Applied is designed for fast, efficient waterproofing on larger surface areas without compromising performance. Applied by roller, it forms a seamless, flexible membrane that accommodates substrate movement while delivering durable, long-term waterproof protection. Ideal for demanding environments, it provides reliable adhesion and weather resistance, making it a practical, high-performance solution when speed,consistency, and confidence on site matter.

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 The GOAT Flexible Waterproof Coating Paint – Roller & Brush Grades in Action