duraflex® two part flexible waterproofing slurry

No priming required.

Grey

Download datasheet for information.

All surfaces to be clean, dry, sound, free of all laitance, grease, oil, fungal growth, and loose and flaking particles that might affect adhesion.  Concrete may require grit blasting.  Cracks less than 0.3 mm in width can be coated as long as the crack is not likely to open up more than 0.3 mm.

Cracks greater than 0.3 mm in width should be chased-out to 4 mm in width and ±15 mm in depth.  This should be filled with duraflex^® (applied using less liquid providing a thicker consistency).  When material in the crack has hardened the coating should be applied over the crack.

It is essential to use a mechanical mixer, such as a slow speed electric drill fitted with a suitable paddle. Our technical department will be pleased to
supply details of blade design.

Fill approximately three quarters of component A (milky liquid) into a pail and, with continuous stirring, slowly add component B (greyish powder). Mixing must be continued until the mix is homogeneous and free of lumps.

For horizontal surfaces such as the base of reservoirs, add the remaining component A. For other applications add only sufficient component A
to provide a suitable consistency. When the two components are mixed together, a plastic thixotropic liquid results which is easy to apply.

The very finely dispersed resin component imparts excellent adhesion to concrete, plaster, and natural stone surfaces.

Once cured, duraflex® is waterproof and resistant to weathering. It exhibits a high degree of impermeability to water vapour and carbon
dioxide. The cured coating is highly flexible and may be used to overbridge hairline cracks up to 0.3 mm in width. duraflex® is non-toxic
and contains no chlorides.

Nominal coverage rate: 8 m2/15 kg for 1 mm wet film thickness. The coverage figure given is theoretical due to wastage factors and the variety
and nature of possible substrates, practical coverage figures will be reduced. A minimum coverage of 2 kg/m2/mm applied in not less than two
coats which is recommended.

Thoroughly dampen the substrate surface with clean water using a brush, roller or spray. Substrates having a high porosity will require more
dampening. Do not apply the coating when the substrate is wet, but allow the water to soak in until the substrate is just visibly damp before
proceeding. Any excess water must be removed using a sponge. The surface should be SSD (surface saturated dry).

duraflex® may be applied to the correctly prepared surface by short bristled block brush, rubber squeegee, trowel or spray.

Brush: using a block brush, duraflex® should be applied in three coats to provide a final dry film thickness of between 3 mm on the surface. Alternate coats should be applied at right angles to each other. Allow a minimum of 4 hours at 20 ºC/50 % RH curing between coats.

Trowel: horizontal surfaces – the first layer of duraflex® should be applied to a thickness of 1 – 1.5 mm. Allow a minimum of 4 hours at 20 ºC/50 % RH curing between coats then apply a second layer using a steel float. duraflex® should not be applied thicker than 1.5 mm per coat. The first coat must be allowed to cure, hard to the touch, before the second coat is applied. There is no maximum over coating time but the
surface must be kept clean.

The temperature and humidity will have an effect on the rate of curing, at lower temperatures and humidity curing may take up to 16 hours.

Pre-dampening of the surface of subsequent coats is not necessary.

Spray: contact our Technical Department for details of the special equipment required.

The appropriate PPE must be used when mixing and applying the duraflex® See the MSDS for further information.

abe^®mesh may be incorporated to reinforce the duraflex^® ecofelt at joints and cracks.

abe^®mesh should be bedded into the first coat while still wet.  Immediately after placing apply a further thin coat of duraflex^®
to ‘wet’ out the abe^®mesh.

Allow the first coat to set before applying the second coat.

Tools, brushes and mixing equipment should be cleaned immediately after use and before material has set with abe^® super brush cleaner followed by washing with soap and water.

duraflex^® may be left as is, be tiled over or overcoated with a high quality PVA/acrylic paint.

Application temperature: 5 °C to 40 °C Do not apply if rain is imminent.

Two component, flexible waterproofing slurry. The waterproofing compound shall be duraflex®, a two component, polymer modified,
cementitious coating applied in accordance with the manufacturers recommendations, a.b.e.®

The coating shall conform to the requirements of EMPA test 235’528, EMPA test 162’475/2 and UK Water Byelaws Scheme (WRc Listed). ** The compound shall have a resistance to positive pressure of 10 bar and a resistance to negative pressure of 4 bar.

duraflex® is supplied in 15 kg kits (liquid 4 kg : 11 kg powder).

This product has a shelf-life of 12 months if kept in a dry cool place in the original packaging. In more extreme conditions this period might be
shortened.

duraflex® powder is irritating to eyes, respiratory system and skin. Avoid inhalation of dust and wear suitable respiratory protective equipment. duraflex® liquid is not classified as dangerous. duraflex® when mixed becomes highly alkaline.

Wear suitable protective clothing, gloves and eye protection. For both components and mixed material avoid contact with skin and eyes. In case of contact with eyes or skin rinse immediately with plenty of water and seek medical advice.