Monoprufe D PM – Surface damp proof membrane
Monoprufe DPM – Surface damp proof membrane is a liquid applied surface damp proof membrane designed to reduce the passage of water vapour and allow the adhesion of thin bonded and
fast drying screeds to concrete which is either not fully dry or does not have a functioning DPM. Monoprufe D PM is also suitable for use prior to the application of tiles, soft flooring or wood flooring to screeds which are not fully dry. Supplied as a liquid and a powder Monoprufe D PM is applied as a two or three coat membrane Tests including Moisture Vapour Permeability in accordance with BS3177 have been carried out and show a reduction in vapour transmission to less than 4g/m²/ day.
Monoprufe DPM Uses
In all cases the substrate must be sound and have sufficient tensile strength to sustain an adequate bond with the Monoprufe D PM, to prevent debonding caused by vapour pressure and in the case of overlaying with high strength screeds, topping or finishes, to prevent disruption of the substrate during curing or subsequent trafficking. When mechanically abrading surfaces, vacuum blasting is preferable. A heavy surface profile should be avoided in order to minimise the risk of the Monoprufe D PM ponding or not covering high points. When overlaying with an unbonded screed, surface preparation requires the substrate to be clean, sound and free of contamination including oil and dirt.
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