ARDEX WPM 1000 Weldable Waterproofing Membrane
ARDEX WPM 1000 Weldable Waterproofing Membrane is a versatile rubber membrane that can be heat welded. It is suitable for waterproofing underground tanking, rooftops, decks, undertile, canal and pond linings.
ARDEX WPM 1000 is made up of synthetic rubber with properties which resist ageing from heat, sunlight and ozone and is heat weldable. Polypropylene filaments are welded onto both sides of the membrane for better wetting by water based adhesives. It has excellent gas impermeability and toughness and remains flexible at low temperatures.
Laps and corners are to be heat formed and/ or welded. Tiling can be done directly on the membrane after 60 minutes with common ARDEX tiling adhesives like X77, X56 STS8/ E90, Quickbond/Abalastic, 2 part Optima or ABAFLEX.
ARDEX requirements for long term warranty necessitate that the ARDEX WPM 1000 meets these typical technical requirements:
Gauge - 1.0mm & 1.5mm +0.15
Specific Gravity 1.26
Tensile Strength (MPa) Min 6.00
300% Modulus (MPa) Min 4.00
Elongation at Break (%) Min 300%
Tear Die (kN/m) Min 26.25
Hardness (IRHD) 75 Â± 5
Tensile Retained Min % 70
Elongation at Break
Retained Min % 70
Transmission g/(day.m2 ) 0.11
Ozone Resistance to
ASTM D1149 - 7 days
at 40oC in 50pphm ozone No visible cracks
ARDEX WPM 1000 resists tearing, flex cracking, bubbling and abrasion. It is extremely strong, has a long life and is versatile.
In rolls of nominal 1.4m width and 20m long. Each roll is packed in polythene wrapper trademarked ARDEX WPM 1000.
ADHESIVES FOR USE WITH ARDEX WPM 1000
ARDEX WA98 - The standard contact brushing, spray grade and rolling solvent free adhesive for fixing to the substrate. Supplied in 20L plastic containers.
ARDEX WPM 1000 when fixed according to ARDEX instruction will meet the NZBC requirements of B2.3.1(b) 15 years.
SUBSTRATE SPECIFICATION Plywood & Timber
Substrates must be dry when ARDEX WPM 1000 is applied. The plywood and timber substructure shall have a maximum moisture content of 20% when ARDEX WPM 1000 is adhered. NOTE: LOSP (Light Organic Solvent Preservative) treated plywood must NOT be used under ARDEX WPM 1000 in any circumstances or conditions.
Must be cured for a minimum of 28 days and all curing compounds removed prior to application. A reduction in cure time can be achieved by utilising the ARDEX HydrEpoxy System (consult ARDEX Technical Department for details).
Old Concrete Must be clean from any contaminants prior to application
OTHER SUBSTRATE TYPES Fibre cement compressed sheet, closed cell polyurethane foam, wet wall linings i.e. Gib Aqualine, VillaBoard.
Roll out ARDEX WPM 1000 and cut to the measured length. Smooth ARDEX WPM 1000 on contact to minimise air entrapment beneath the membrane. Floor sheets of ARDEX WPM 1000 must extend up the wall at least 150mm. Make sure the ARDEX WPM 1000 is laid tightly into all corners. Wall sheets of ARDEX WPM 1000 should overlap the 150mm upstand. Weld seams and laps with the Leister Triac S Hot Air Gun. Roll with a rubber roller to ensure seams and laps are secure.
Walls, internal corners & transitions
Apply the ARDEX WPM 1000 membrane 1800mm up the walls or to a height of 150mm above the shower rose. For unenclosed showers the membrane must extend a minimum of 1500mm out from the shower rose.
ARDEX WPM 1000 is not suitable as a trafficable surface. ARDEX WPM 1000 is compatible with undertile heating systems. For electric undertile heating, the wire must be covered with a thin screed prior to laying the membrane. It is the responsibility of the main building contractor to ensure all sub-trades likely to be working in the vicinity of the membrane are aware that a waterproofing membrane has been installed and all care must be taken to protect the membrane from damage. The tiler must lay tiles in accordance with best practice guidelines