Premcrete Combiseal Plus - VOC-resistant Waterproof Membrane
Verified by manufacturer 7 months ago
VOC-resistant waterproof membrane
Application
Vertical application: The sheets should be installed with the white active fleece in contact with the freshly placed concrete and aligned vertically ensuring that all lap joints face down away from the concrete pour.
Horizontal application: Combiseal Plus should be laid with the white fleece facing the installer and in direct contact with the concrete. Adjoining lapse should be a minimum of 150 mm and tapped using COMBI-SEAL TAPE or by making use of the selvedge (refer to above methodology) it is recommended to stager the lap joints by 300 mm to avoid four sheets lapping at one location.
Description
COMBI-SEAL PLUS comprises of a high-density polyethylene membrane (HDPE) and non-woven, geotextile, cross laminated to produce a durable, pre-applied membrane which will resist hydrocarbons, VOCs, ground gases and water.
The membrane utilises PREMCRETE APANTM technology to produce a membrane which will effectively resist water pressure, gases and VOCs from within the ground.
General information
Color | Black |
Material | High density polyethylene (HDPE) |
Shape | Rectangle |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | 25 year |
Uniclass | |
CAWS | D21/350 Gas-retardant membrane D21/38 Gas-retardant membranes J40/120 Loose-laid plastics or rubber sheet damp-proofing J40/130 Loose-laid plastics or rubber sheet oversite damp-proofing J40/140 Loose-laid plastics or rubber sheet gas-retardant membranes J40/20 Loose-laid plastics or rubber sheet damp-proofing J40/30 Loose-laid plastics or rubber sheet oversite damp-proofing J40/35 Loose-laid plastics or rubber gas-retardant membranes |
Product range |
Specification data - Plastics sheets
Material | Polyolefin. |
Purpose | Gas-resistant waterproof membrane. |
Standard | To BS 8485:2015; BS 8102:2009. |
Third-party certification | BDA Certificate BAB-20-144-P-UK-20-144-P-UK. |
Performance characteristics | |
Tensile strength (minimum) | To DIN EN ISO 12311-2: Machine direction (MD): 930 N/50mm; Cross direction (CD): 1456 N/50mm. |
Tear resistance | To DIN EN ISO 12310-1: Machine direction (MD): 1010 N; Cross direction (CD): 1030 N. |
Elongation to break | To DIN EN ISO 12311-2: Machine direction (MD): 63%; Cross direction (CD): 78%. |
Resistant to underground gases | Methane, carbon dioxide and radon. |
Form | Reinforced with a 12 micron aluminium foil core. |
Root inhibitor | Aluminium foil core. |
Physical properties | |
Colour | Black. |
Weight (minimum) | 950 g/m². |
Dimensions | |
Thickness (minimum) | 3 mm. |
Width (minimum) | 2 m. |
Roll length (minimum) | 10 m. |
Moisture vapour transmission rate | 0.003 g/m²/day (to ISO 15106). |
Methane permeability | 23 mL/m²/day (to ISO 15105-1). |
Static load resistance | 20 kg (to EN 12730 - B). |
Watertightness | Pass (to DIN EN 1928 B). |
Impact resistance | >450 mm (to EN 12691). |
Joints | Shear resistance: 402 N (to EN 12317-1). |
Literature
BDA Certificate
Combi-Seal Plus TDS