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WATERPROOFING SYSTEM USING ELASTOCRYL

Pure Acrylic bound emulsion paints are not inexpensive products. Premium grade binders are required to guarantee the type of performance expected in a very demanding climate. In addition to this, high solids levels in waterproofing formulations result in inevitably more expensive products than standard decorative paints. It makes sense, therefore, to ensure that the end user is fully conversant with the application requirements of the system.

STEP 1: SURFACE PREPARATION

As for all paint jobs, this is an extremely important step and no short cuts should be taken.
Ensure that the surface to be coated is free of dirt, fungal growth, and oily deposits and loosely bound powdery paint.
Remove dirt with WeatherPrufe Water-based Degreaser thinned 1:5 with clean water.
Rinse off well and allow surface to dry thoroughly.
Fungal growth should be sterilized using our WeatherPrufe Anti Fungal solution before water-jetting the surface. A second application of the solution should be applied and allowed to dry before application commences.
Loosely bound paint should be water-jetted and allowed to dry before one coat of Bonding Liquid is applied as a prime-coat. Allow to dry for 4 hrs before application of the water-proofing system.

STEP 2: APPLICATION OF THE FIRST COAT

The surface to be coated is marked off and an appropriate length of non-woven polyester membrane is cut to size. Apply one liberal coat of WeatherPrufe Elastocryl and embed the membrane into the wet paint layer.

STEP 3: APPLICATION OF MEMBRANE SATURATION COAT

After the membrane has been embedded in the first coat and inspected carefully to ensure that its entire surface area is in contact with the substrate and no hollow areas are present, a second coat is applied. This coat is best applied with a block brush and serves to fully saturate the membrane. Allow to dry before proceeding.

STEP 4: APPLICATION OF THE TOP-COATS

Once the saturated membrane is completely dry, apply the first of two top-coats at a spreading rate not exceeding 5 sq metres per litre. Allow to dry for 4 hrs and apply the second top-coat at the same spreading rate.
This waterproofing system dries considerably faster than conventional Acrylic systems even in colder weather. Notwithstanding this, it requires sufficient time for a surface skin to form before the first rain or heavy dewfall to ensure the success of the application.
 

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