Verified by manufacturer 3 months ago
Gas Seal HC is a multi-layered, blended polyethylene membrane for protection against ground gas and hydrocarbons.
Suitable for use as a combined ground floor damp proof membrane and hydrocarbon/ gas barrier.
A 0.5 mm-thick, multi-layered, blended polyethylene smooth sheet, typically used as a gas barrier and damp proof membrane in concrete floors below the slab or where additional protection from hydrocarbons and VOCs are required.
Features and benefits:
Accessories:
A range of accessories are available (specified separately):
Color | Silver |
Finish | Embossed Other |
Material | Polyethylene |
Shape | Rectangle Other |
Length | 50000 mm |
Width | 2000 mm |
Height | 0.5 mm |
Warranty description | Ten year |
Uniclass | |
CAWS | J40/35 Loose-laid plastics or rubber gas-retardant membranes J40/140 Loose-laid plastics or rubber sheet gas-retardant membranes |
Material | Multi-layered, blended polyethylene. |
Purpose | Gas retardance, damp-proof membrane. |
Standard | To BS 8485. |
Performance characteristics | |
Tensile strength (minimum) | To BS EN 12311-1, >550 N/50mm². |
Tear resistance | Tear resistance (to EN 12310-1): >300 N. |
Resistant to underground gases | Methane.Guidance for specification option: Methane permeability (to BS ISO 15105-1): 0.13 ml/m²/day/atmosphere. |
Physical properties | |
Colour | Black and grey. |
Dimensions | |
Thickness (minimum) | 0.5 mm. |
Width (minimum) | 2.0 m. |
Roll length (minimum) | 50 m. |
Recycled content | None – virgin material. |
Product Reference | RIW Gas Seal HC |
Sealed Laps | 150 mm. |
Tensile elongation property | To EN 12311-1, 400%. |
Water vapour transmission | To BS EN 1931, 0.14 g/m²/day. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |