IMPERMAX LY: The Premier Liquid Polyurethane Waterproofing Membrane for Unmatched Durability

In the realm of waterproofing solutions, IMPERMAX LY Liquid Polyurethane Waterproofing Membrane stands out as a cutting-edge, elastomeric coating designed for superior protection against water damage. Manufactured by Krypton Egypt, this solvent-based, single-component membrane offers seamless application, exceptional flexibility, and long-lasting performance. Ideal for both industrial and residential projects, IMPERMAX LY is engineered to withstand structural movements, extreme weather, and heavy foot traffic. This article delves into its features, applications, technical specifications, and best practices for optimal results.

Key Features of IMPERMAX LY

1. Elastomeric & Seamless Coating: Forms a continuous, flexible membrane that adapts to building movements, eliminating cracks.
2. Cold-Applied & Self-Leveling: Easy application without heating, suitable for complex surfaces and tight spaces.
3. Weather & UV Resistant: Withstands temperature fluctuations and UV exposure without yellowing.
4. High Adhesion: Bonds strongly to concrete, steel, ceramics, and bitumen (up to 1.7 MPa on primed steel).
5. Rapid Curing: Achieves 90% strength in 3 days, with walkability in 1–2 days.

Applications

IMPERMAX LY is versatile for both new constructions and renovations:

• Roofs, Terraces & Balconies: Protects against water ingress in outdoor areas.
• Wet Areas: Bathrooms, kitchens, and swimming pools.
• Industrial Zones: Factories, parking lots, and stadiums with light foot traffic.
• Critical Infrastructure: Bridges, tunnels, and metal structures (steel, aluminum).

Technical Specifications

Liquid Product Properties

• Composition: Single-component polyurethane, solvent-based.
• Solid Content: 76% | Density: 1.32 g/cm³.
• VOC: 314 g/L (Class II compliant).
• Pot Life: 4–6 hours (at 20°C).
• Packaging: 6 kg, 10 kg, or 25 kg metal containers.

Cured Membrane Performance

• Elongation: >600% (EN-ISO 527-3).
• Tensile Strength: >2.5 MPa.
• Hardness: 60–65 Shore A.
• Colors: Standard white/gray; custom options available.

Step-by-Step Application Guide

1. Surface Preparation:
   • Ensure substrates are clean, dry, and crack-free (minimum pull-off strength: 1.4 N/mm²).
   • Repair cracks and prime surfaces with Krypton-recommended primers.
2. Mixing & Thinning:
   • Stir gently to avoid air bubbles; thin with Rayston Solvent (≤10%) if needed.
3. Application:
   • Apply via roller, brush, or airless spray in two coats (1 kg/m² each).
   • Use a spiked roller to eliminate bubbles.
4. Curing:
   • Touch-dry time: 4–8 hours (varies with temperature/humidity).
   • Full cure: 10–15 days before water exposure.

Environmental & Safety Considerations

• Temperature Range: Apply between 0°C–30°C; substrate must not exceed 40°C.
• Storage: Keep below 35°C, away from moisture/flames. Shelf life: 12 months.
• Cleanup: Use Rayston Solvent or acetone before curing.

FAQ: Troubleshooting Common Issues

Q: Why is the membrane not curing?
A: Ensure ambient humidity is below 85% and temperatures are within 0°C–30°C. Avoid applying in rain.

Q: How to prevent bubbles during application?
A: Use a spiked roller and avoid high-speed mixing. Apply in thin, even layers.

Q: Can IMPERMAX LY be used on metal surfaces?
A: Yes, with a PU primer for steel or zinc.

Why Choose IMPERMAX LY?

• Proven Performance: Tested for adhesion, elongation, and durability.
• Eco-Friendly: Low VOC formula aligns with environmental standards.
• Versatility: Compatible with diverse substrates and climates.