• Excellent breathability
• Good water repellency
• Optimized porosity
• Applicable by hand and machine

Premixed mortar, to be mixed only with water, based on cement and quartz sand, added with aerating and hydrophobising agents, to make water-repellent and breathable plasters defined as dehumidifying, because they are suitable to dry the surfaces of walls subject to capillary rising damp and to prevent efflorescence and mould growth. The capillary system, inactivated through hydrophobisation of the DP 501 plaster, prevents capillary migration of water both from the atmosphere to the masonry and vice versa, and therefore the plaster is always dry. At the same time, its high porosity allows moisture to evaporate from the wall in the form of steam. In the case of the presence of water-soluble salts in the wall in modest quantities DP 501 prevents efflorescence, keeping the salts in solution inside the wall and thus avoiding harmful crystallization on the surface.

The water repellency and at the same time the breathability to water vapour make DP 501 particularly suitable:

• as external plaster in the skirting boards of old buildings against rising damp, with medium salt efflorescence;
• as internal dehumidification plaster in basements subject to rising humidity.

DP 501 is not suitable as a barrier for stagnant water, pressurized water, seepage. Therefore, if it is applied below ground zero and/or with water in negative thrust, it will be necessary to supplement the system with a preventive application of Aquaproof. In any case, for further information and technical details refer to the Technical Department of Torggler S.r.l.