Monoprufe DPM
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Monoprufe DPM Surface damp proof membrane FEATURES • water based membrane system • reduces water and water vapour permeability • designed to accept thin bonded screeds • compatible with most Ronacrete screed and topping systems • easy to mix and apply • quick drying two or three coat application • non-hazardous, solvent free, low odour • suitable for use prior to the application of tiles, soft flooring or wood flooring to screeds which are not fully dry Monoprufe DPM 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 DPM 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 DPM 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. Water Vapour Permeability Preparation In all cases the substrate must be sound and have sufficient tensile strength to sustain an adequate bond with the Monoprufe DPM, 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 DPM 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. Continued on following page... Other Ranges—Resin Bound and Bonded Surfacing, Concrete Repair and Coatings, Screeds, and, Flooring and Bedding

Monoprufe DPM Surface damp proof membrane Instructions for Use (continued) If an unbonded screed is being laid on top of Monoprufe DPM, install a separating layer between the Monoprufe DPM and screed to prevent partial adhesion. Damping Following surface preparation and before applying Monoprufe DPM the surface must be damped with clean water, allowing water to soak in to the surface and reduce porosity. Excess standing and ponding water must be removed and the surface left damp. Application Ensure the Monoprufe DPM is properly mixed and the powder evenly dispersed. Apply by brush or roller...

Monoprufe DPM Surface damp proof membrane Site Attendance When on site Ronacrete representatives are able, if asked, to give a general indication of the correct method of installing a Ronacrete product. It is important to bear in mind that Ronacrete Ltd is a manufacturer and not an application contractor and it is therefore the responsibility of the contractor and his employer to ensure he is aware of and implements the correct practices and procedures to ensure the correct installation of the product and that liability for its correct installation lies with the contractor and not with...