KEYSEAL – GAS BARRIER TAPE
KEYSEAL – GAS BARRIER TAPE
KEY FEATURES
- High shear strength
- High peel strength
- Available in five widths
- High movement capability
- Chemically resistant to dilute acid and alkalis
- Life expectancy, in excess of 20 years
APPLICATION
Optimum performance will be achieved when applied to clean, dry, dust and grease-free surfaces. Excellent adhesion to plastic, wood, metal and masonry. Recommended size application, 100mm & 70mm for polyethylenes, polypropylenes and butyl. 100mm, 70mm & 50mm for gas barriers. 30mm & 15mm radon barriers.
SUGGESTED SPECIFICATION
Keyseal Tape must be applied to a dry surface into a 150mm overlap of the membrane and pressed down firmly to achieve a gas tight seal. The tape should only be applied at temperatures above 5°C.
COMPOSITION
Polybutene, inert fillers and oil with elastomeric backbone, formed into an homogeneous tape carried on a release paper.
Product specification CE MARK to EN 13967 | |
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Property | Value |
Product | Cross linked butyl compound |
Colour | Black |
Recommended service temp | -40°C to +110°C |
Typical test results | Observed @ 20°C |
Elongation at break | 200% |
Paintability | Good |
Service life (predicted) | 20 + years |
Shear strength | 16.2N |
Tack | Very good |
Movement accommodation | 15% |
Size | 100mm, 70mm, 50mm, 30mm, 15mm |
Toxicity | No known toxic ingredients. Solvent free |
Density | 1.6 g / cm² |
Force compress by 20% | 220N |
Resistance to mould | Good |
Shrinkage | <0.5% |
Slump | Nil |
UV resistance | Very good |
Moisture vapour transmission rate | 0.24g/m² 24 hours |