DESCRIPTION
MASTER POLYURETHANE PU is a cold-applied single-component moisture-cure aliphatic polyurethane waterproofing and heat-proofing protective sealing liquid membrane.
Uses
MASTER POLYURETHANE PU is suitable for fixing:
- Concrete
- Masonry & Metal Surfaces
- Basement, Bed & Retaining Walls
- Wet Areas
- GRP & GRC
- Concrete Walls
Advantages
- Highly Elastic
- High Tensile Strength
- Crack Bridging
- Rubber-Like Membrane
- Resistant to Oxidation
- UV Resistant
- Highly Durable
- Repair Friendly
MATERIAL DATA
- Type: Polyurethane
- Form: White, Black, Grey
- Packing: 20 Kg or as per requirement
- Storage Condition: 12 months in unopened packaging, between 5°C and 35°C
TECHNICAL DATA
| Property | Value | Test Method |
| Specific Gravity | 1.1 ± 0.05 | ASTM D1475 |
| Tensile Strength | >8 N | ASTM D412 |
| Tear Resistance | >15 N | ASTM D624 |
| Shore Hardness A | 70 | ASTM D2240 |
| Elongation at Break | >600 | ASTM D412 |
| QUV Accelerated Weathering Test | Passed 2000 hours | ASTM G53 |
| SRI (Solar Reflectance Index) | 101 | ASTM E1980 |
| Resistance to Bacteria | No Attack | ASTM D4299 |
| Resistance to Algae | No Attack | ASTM G29 |
| Service Temperature | 30 to 80°C |
Master Polyurethane PU
Moisture Cure Polyurethane Liquid Waterproofing & Heatproofing
APPLICATION DETAILS
Surface Preparation
The substrate should be clean, and free from dirt, dust, and all loosely adhering particles. Cement-based surfaces should be thoroughly saturated with water to achieve a surface-saturated dry condition. All cracks larger than 1mm should be filled with cement-based concrete repair. Steel surfaces should be grit blasted, then cleaned with solvent, and kept dry.
Method of Application:
- Surface Cleaning
- Apply Primer – Use Master Polyurethane PU PRIMER to smoothen the surface and block pores.
- Apply Top Coat – Apply Master Polyurethane PU Coating for complete surface protection.
Curing Time:
- Touch Dry: 2-4 hours
- Partial Curing & Water Test: 12-24 hours
- Complete Curing: 48 hours
AREA COVERAGE
- Master Polyurethane PU Coating: Approx. 700 square feet per bucket (20 KG)
- Master Polyurethane PU Primer: Approx. 1200 square feet per bucket (20 KG)
SAFETY
Prevention:
- Do not breathe dust, fumes, gas, mist, vapors, or spray.
- Wear protective gloves, protective clothing, eye protection, and face protection.
- In case of inadequate ventilation, wear respiratory protection.
Response:
- If on the skin, wash with plenty of soap and water.
- If inhaled, remove the victim to fresh air and keep them in a comfortable position
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