WAM Rapid is a polyurethane modified copolymer acrylic waterproofing membrane
specifically formulated for bathrooms, laundries, balconies, terraces and other
wet areas. Use Duromastic WAM Rapid prior to installing mortar beds, render or
tiling. The membrane forms a blue coloured water resistant elastomeric film
with excellent durability
Non-hazardous and non-flammable
durable- Water, oxidation, UV and weather resistant
with polymer modified tile adhesives
with acrylic coatings
with the requirements of AS4858 Class 3 and AS3740
to over 400%
bathrooms, showers and laundries
terraces, decks and balconies
walk-on roofs prior to screeding and tiling
a barrier under renders and mortar toppings and slabs.
Wet Areas and Shower Recesses
Balconies and Decks
and concrete blockwork
Minimum recommended 1.0 litres/m2 per coat, applied as 2 or more coats. This
will give a recommended dry film thickness of 1.1 mm total.
wall and floor lining sheets are firmly fixed to manufacturer's directions.
Surfaces must be free of dirt, dust, loose particles, oil, contaminants and
curing compounds etc.. Concrete must be a minimum strength of 20MPa and have
cured a minimum of 28 days. Surfaces must be dry. Fill all screw holes, cracks
and voids with neutral-cure silicone sealant. Install leak control flanges to
all pipe penetrations.
dirt, dust, loose particles, old adhesives and coatings, grime and unsound
concrete. Where possible wash down oily, dirt contaminated, or powdery surfaces
with dilute detergent, then rinse and dry thoroughly. Allow new concrete and
render to fully cure. Ensure all sheeting and surfaces are dry, stable, sound
and fully secured. Fix any rising damp problems beforehand. For timber floor
surfaces use fibre cement sheeting as a replacement or cover. Remove or flatten
all sharp concrete edges, mortar droppings, screw and nail heads. Prime wall
and floor surfaces with Durotech Waterproofing Primer. Etch PVC fittings with
plumbers PVC primer. For larger cracks, expansion joints , floor and pipe
penetrations wall or hob junctions, seal neatly with neutral cure silicone
sealant (smooth curved 12 mm bead), and when cured apply membrane with fabric
reinforcement as explained below.
not apply externally if rain is expected presently. Do not apply below 10 C or
above 30 C externally. Ensure that the primer coat is completely dry. Apply
evenly and check for missed areas and pin-holes. Apply further coats from cross
directions after 4 to 6 hours. Do not apply as one coat. Apply down into
drainage outlets. Use reinforcing fabric over expansion joints, cracks, all
wall and floor junctions, and pipe penetrations. Apply this by first brushing
out a layer of membrane (1-2 mm), next lay in the fabric and ensure there are
no air bubbles, and the fabric is fully set in without wrinkles. Then brush
over with more membrane. Good air flow and warmth will speed drying.
4 to 6 hours to dry. Flood test after 3 days. Tile or apply mortar bed after 3
to 4 days. Reputable polymer modified tile adhesives and renders are
drying, clean up with water. Scrape off when dry or use paint stripper for spot
months at 20 C in original unopened containers. Protect from freezing.
litre, 4 litre, 15 litre.