PLASTISEAL®
PUMMA EWM SL HS
A high-strength, self-levelling PUMMA waterproofing membrane for horizontal surfaces, offering enhanced puncture resistance, superior mechanical strength, seamless crack-bridging performance and fast-curing durability for heavy-duty and trafficked environments.
PlastiSeal PUMMA EWM SL HS is a 100%-solids, two-component, high-strength polyurethane–methyl methacrylate (PUMMA) elastomeric waterproofing membrane engineered for horizontal waterproofing applications exposed to heavy mechanical loading and traffic. The formulation delivers very high elasticity, crack-bridging capability and flexibility at temperatures as low as −30°C, while the HS (High Strength) grade provides increased puncture resistance and enhanced mechanical performance.
Features & Benefits
- High-Strength, Puncture-Resistant Membrane – Designed for demanding load and traffic conditions
- Self-Levelling Elastomeric System – Produces a smooth, seamless horizontal waterproofing layer
- Extreme Low-Temperature Flexibility – Maintains elasticity and crack-bridging down to −30°C
- Rapid Curing / Fast Return to Service – Minimises downtime on active sites
- Impermeable & Long-Life Performance – Protects substrates from moisture ingress
- High Mechanical & Load-Bearing Capacity – Ideal for heavy-duty environments
- Abrasion & Impact Resistant – Withstands wear from vehicles and pedestrians
- Outstanding Chemical Resistance – Resists fuels, oils, salts and aggressive agents
- Excellent Recoat Adhesion – Integrates reliably in multi-layer waterproofing systems
- Weathering & Age Resistant – Durable long-term exterior performance
Intended Uses
PlastiSeal PUMMA EWM SL HS is designed as a high-strength 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 & Heavy Duty Areas
- Balconies, terraces & rooftop decks
- Parking decks & vehicular traffic zones
- Loading bays, service zones & dumpster areas
- Pedestrian walkways, bridges, pool decks & stadiums
- Water parks & decorative waterproofing systems
Specialty & Rooftop Applications
- Under-tile waterproofing
- Gutters, flashings & penetrations
- Flat roof waterproofing systems
- Water features & fountains
Used as part of a complete PUMMA waterproofing system, with optional topcoats for enhanced UV, chemical and mechanical resistance.
