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Weber Saint-Gobain - Official website of the company

New moisture resistant weberfloor DPM damp proof system saves application time

7 10 2016

Saint-Gobain Weber has introduced weberfloor DPM, a highly moisture tolerant, epoxy resin damp proof system.

weberfloor DPM has been designed to bond to concrete surfaces even when the concrete is still drying out and when it contains a high degree of moisture. It is a two coat system which is easy to apply to concrete and cement-based substrates as well as to Weber levelling compounds.

“This really is a hard working product,” says Tracey Dempster, marketing manager, Saint-Gobain Weber, “as weberfloor DPM supresses the passage of moisture by up to 98% and is resistant to a wide range of chemicals.  Its ease of application reduces project timescales and allows early installation of floor finishes.  It can also be used at temperatures as low as 5°C which allows winter working.”

weberfloor DPM contains a tin of resin and a bottle of hardener packaged in a 5.6kg box.  Before application all surfaces must be mechanically sound, dry and clean; free from dirt, dust, grease or other contamination or coating.  Laitance must also be removed from concrete. 

Immediately after mixing, weberfloor DPM should be applied evenly and uniformly over the entire substrate using a brush or roller.  When the first coat has partially cured, around six to eight hours depending on ambient temperature, a second coat should be applied.  Immediately after this second application cover weberfloor DPM in a full sand scatter using 1-2mm of kiln dried sand.

After 12 hours, or overnight, the floor should be brushed and vacuumed to remove any loose sand particles and then primed with weberfloor 4716 in preparation to receive a Weber levelling compound.  weberfloor DPM permits early overlaying with vinyl, carpets and resin based products without the conventional ‘drying out’ period required of concrete bases.