Ardex WPM 415
Crystalline Waterproofing Slurry
DESCRIPTION
ARDEX WPM 415 is a one component, penetrating crystalline waterproofing powder formulated from Portland cement, it is used specially for treated quartz sand and active chemicals. ARDEX WPM 415 waterproofs and protect concrete or masonry render through the crystallization process. The unique reactive chemicals penetrate and become an integral part of the concrete where the crystals react permanently in the presence of water. ARDEX WPM 415 is suitable for use in damp surface and high water pressure applications on both the positive and negative side.
FEATURES / BENEFITS
- No odour and no fumes - environmentally friendly
- Easy to use - requires only water for mixing
- Fast setting - two coats can be applied the same day
- Not a vapour barrier - allows the substrate to ‘breathe’
- Brush/spray applied in +ve/-ve pressure applications
- Inorganic and non-toxic - Non-flammable
APPLICATION RANGE
- Residential , commercial applications for floors & walls
- Waterproofing of below grade foundations, basements, retaining walls, elevator pits, subway stations
- Marine structures such as docks, piers and aquariums
- Water tanks , tunnels , dams , sewerage plants, swimming pools , parking garages , decks, balconies, and roofs
SUBSTRATE
- New and old conrete of interiour and exterior
BASIC APPLICATION INSTRUCTION SURFACE PREPARATION
Remove the remaining concrete fins and projections, general surface dirt, grease, oil and other ontaminants. Use steam cleaning, high-pressure water blasting, wet or dry sand blasting, wire brush or other mechanical methods to produce surfaces suitable to allow ARDEX WPM 415 to penetrate.
Clean and prepare surfaces and seal cracks and joints.
Stable construction joints and visible cracks (> 0.4mm) should be raked out to 20mm width and 25mm depth. Before brushing the area with two coats of ARDEX WPM 415, use ARDEX Primer to fill up the joint.
Ensure that there are no water leakages; the surfaces must be strictly sound and clean from residue, oil, sealers, waxes, contaminants and laitance. Holes, cracks and deteriorated area are seal for maximum penetration
Saturate the surfaces with clean water to minimise surface suction and maximise crystal formation. Surface shall be moist but not wet when ARDEX WPM 415 is applied. Remove any surface water that is on the horizontal surfaces.
MIXING
Add 7.5 - 8L of water to 25kg bag of WPM 415 powder and mix thoroughly until the mixture is ompletely free of lumps. Re-mix the used ARDEX WPM 415 within 40 minutes. If the mixed material starts to “pseudo setting”, re-stir to restore the workability.
APPLICATION OF ARDEX WPM 415
Apply 1st coat in a slurry consistency and evenly by a masonry brush. Work well into the prepared substrates. Apply 2nd coat within 30-60 minutes whilst the first coat is just touch dry.
ARDEX WPM 415 may be applied with appropriate compressed air spray equipment according to the
specifications, in perpendicular movements. Clean the tools and equipment immediately after use with water.
PROTECTION
Protect the freshly treated ARDEX WPM 415 surface from rain and traffic for 24 hours. Ensure that the freshly treated ARDEX WPM 415 is moist cure for at least 48 hours.
Further cementation plaster, render finishor tiling system can be applied onto treated ARDEXWPM 415 at 48 hour after completion. Coating or painting on ARDEX WPM 415 treated surface should be applied 2 weeks after completion. Recommend neutralizing the surface with water or an appropriate acid, e.g. diluted vinegar solution or diluted muriatic acid (1:8 to water) for better bonding
PRODUCT LIMITATION
Do not apply ARDEX WPM 415 at temperatures below 5oC or onto dry substrates
