DPM Primer

Typical Uses:

As a primer to seal substrates with a residual moisture level greater than 75% RH, prior to application of self-levelling cementitious screeds, epoxy floor paints and epoxy screeds.

Being solvent-free, odourless and taint-free, DPM Primer is the ideal concrete floor primer for use in warehouses, factories showrooms, as well as more sensitive areas such as food processing plants, kitchens, hospitals, schools and animal environments.

Typical Substrates:

DPM Primer may be applied direct to most substrates, including old and new concrete, wood, stone, terrazzo, brick and block.

Special Formulations:

Our range of epoxy floor primers also answer bespoke needs such as Extra Fast Hardening (XFH), extra chemical resistance and low temperature curing requirements. Please contact Polycote technical helpline for further advice.

• May be applied to substrates with up to 60% moisture content
• May be applied in areas with up to 98% relative humidity
• Forms a tenacious waterproof barrier on both floors and walls
• Seals and hardens the substrate
• Extremely tough and long lasting
• Withstands heavy vehicular and foot traffic

Professional Help and Advice:

No matter if you have a large or small requirement, if you have any questions or simply not sure if this is the right product for your needs, are not sure which product to use, please feel free to contact our technical experts who will establish exactly what your issues are, even including the maximum amount of downtime you can allow to complete any work. Only then will we advise the best preparation and the best primer (if necessary) to meet YOUR specific needs.

It is far more important to us to offer the right solution and have a happy customer, than a quick sale ending in disappointment!

Product Use

Since 1991, Polycote have laid millions of square metres of epoxy floor paints and coatings in almost every environment throughout the UK.

DPM Primer is a system for substrates that have a residual moisture level greater than 75% RH. In particular, this can include permanently damp concrete floors or where the DPM (Damp Proof Membrane) is ineffective or missing.

Whilst DPM Primer is extremely strong and will withstand extremely heavy traffic it is recommended to be over-coated with an appropriate top coat. The reason for this is to protect the DPM Primer from surface impact or abrasion, as such damage could cause a break in the damp barrier.

If using over under-floor heating, please call our Technical Helpline to confirm suitability.

Typical Areas of Use:

• Factories
• Garages
• Animal Environments
• Production Areas
• Ramps & Steps
• Showrooms
• Storage Areas
• Warehouses
• Workshops
• Wet Rooms

Typical substrates:

DPM Primer may be applied direct to most substrates, including old and new concrete, wood, stone, terrazzo, brick and block.

Professional Help and Advice:

No matter if you have a large or small requirement, if you are not sure which product to use, please feel free to contact our technical experts who will establish exactly what your issues are, along with the maximum amount of downtime you can allow to complete any work. Only then will we advise the best preparation and the best primer (if necessary) to meet YOUR specific needs.

Pot life: 15 mins @ 20°C or 10 mins on wet surfaces

Application temperature: 10°C – 25°C

Cure time: Approximately 24 hours

Number of parts supplied: 2

Priming for: Polycote Flortex product range

Preparation: Thorough substrate preparation is essential. The surface must be free of brittle particles and laitence. Any remains of previous coatings should be removed by means of scabbling, shot blasting and/or diamond grinding.

Important: Free pores must be exposed to ensure good adhesion to the surface. All water must be removed from the surface, leaving it damp but not wet. DPM Primer may then be applied to the damp surface immediately after cleaning.

Mixing: Mix part ‘A’ to part ‘B’ in a suitable container, and thoroughly mix for at least 3 minutes. For best results use a slow speed drill with a mixing paddle, making sure all material from the sides and bottom of the container is thoroughly mixed in. Thorough mixing is imperative as an unmixed product will result in a poor or non-cure situation.

Application: Apply by brush, roller, or squeegee, in one or more continuous applications until the material is absorbed and a film has formed. Make certain that the entire surface is completely covered to prevent water migration. If the DPM Primer is being used underneath a screed or self-level we advise that you apply one coat of DPM Primer to the surface and allow to cure and then apply a second coat with kiln-dried sand broadcast into the wet coating to create a key for the screed or self-level to adhere to. Under no circumstances should aggregate be added to the first coat as this will allow water to bleed through the primer and contaminate the following coats.

Relative
Humidity Required
Reading % Coating Thickness
75-85 1 coat of DPM Primer
at 200 microns
85-92 2 coats of DPM Primer
at 200 microns per coat
92-97 3 coats of DPM Primer
at 200 microns per coat.