Flexible Waterproofing Membrane

PLASTISEAL®
PUMMA EWM SL

A self-levelling, highly elastic, solvent-free PUMMA waterproofing membrane for horizontal surfaces, delivering seamless, crack-bridging, fast-curing and chemically resistant waterproofing for roofs, decks, balconies and heavy-duty traffic areas.

PlastiSeal® PUMMA EWM SL is a 100%-solids, two-component, self-levelling polyurethane–methyl methacrylate (PUMMA) waterproofing membrane engineered for horizontal waterproofing applications where durability, flexibility and high mechanical performance are essential. The system offers very high elasticity and crack-bridging capability — even at temperatures as low as −30°C — and provides exceptional resistance to water migration, salts, fuels, oils, chemicals and anti-freeze.

Interior & Exterior
Solvent Free
Two Component

Features & Benefits

  • Self-Levelling Elastomeric Membrane – Ideal for smooth, seamless horizontal applications
  • 100%-Solids & Solvent-Free – High-build film with no shrinkage
  • Outstanding Crack-Bridging – Maintains elasticity at extreme low temperatures
  • Rapid Curing / Fast Return to Service – Minimises downtime on live projects
  • Impermeable & Highly Durable – Long-term waterproofing and substrate protection
  • High Mechanical & Load-Bearing Strength – Suitable for trafficked areas
  • Abrasion & Impact Resistant – Withstands heavy-duty wear environments
  • Superior Chemical Resistance – Resists oils, fuels, salts and de-icing agents
  • Excellent Recoat Adhesion – Integrates reliably in multi-layer systems
  • Weathering & Age Resistant – Designed for long-life performance

Intended Uses

PlastiSeal PUMMA EWM SL is designed as a self-levelling base-layer waterproofing membrane for horizontal surfaces in demanding applications, including:

Below-Grade & Containment

  • Planters, roof gardens, retaining walls
  • Paver and vegetated roof systems
  • Canals, tanks, reservoirs & dam structures

Trafficked & High-Performance Areas

  • Balconies, terraces & rooftop decks
  • Parking decks & vehicular traffic zones
  • Loading bays, heavy-duty and service areas
  • Pedestrian walkways, bridges, pool decks & stadiums
  • Water parks & decorative waterproofing systems

Specialty Applications

  • Under-tile waterproofing
  • Water features & fountains
  • Gutters & interface zones

Rooftop & General Waterproofing

  • Flat roof waterproofing systems
  • Complex and high-load horizontal areas

Finish with PlastiSeal PUMMA Topcoat where additional UV, chemical or mechanical resistance is required.

Waterproofing

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