Watco Powerfloat Primer

Watco Powerfloat Primer is a virtually solvent free, two part, water based, epoxy resin primer which has been designed for application to smooth, non porous surfaces that are prone to rejecting paint.

Best Uses

Watco Powerfloat Primer is ideal for priming interior power floated, very smooth or non porous concrete floors which are prone to rejecting paint. The traditional way of preparing a power floated or polished concrete floor is by means of mechanical preparation, such as shot blasting, however shot blasting can be expensive and can also  texture the surface leaving ‘tram line’ marks. One coat of Watco Powerfloat Primer eliminates the need for this mechanical preparation, and so retains the attractive smooth power floated finish.

Please note: Whilst Powerfloat Primer avoids the use of mechanical preparation, diamond grinding or shot blasting does provide a better finish overall and is recommended. For smaller areas where mechanical abrasion is difficult Powerfloat Primer is a great back-up option.

The clear version can also be used on clear ceramic tiles prior to aplpication of Watco Protecta-Coat.

Application

Powerfloat Primer can be over coated with most Watco coatings within 12 hours (based on a temperature of 20°C). If you intend to overcoat Powerfloat Primer with a solvent based floor coating, (such as Watco Concrete Floor Paint), it should be left for 5 days to thoroughly cure. We always recommend using Powerfloat Primer in the standard grey finish when using a coloured floor coating. If more than 5 days elapse after using the primer before applying the surface should be lightly abraided before applying the top coat to provide a key.

Bare concrete:  If any surface laitance is present, this should be removed by using Watco Etch & Clean. Flush with clean water and allow the surface to dry. If residual damp remains this is acceptable as Powerfloat Primer and Powerfloat Primer Rapid are breathable.

New concrete: Should be left for four weeks to dry in the summer and six in the winter. Should surface laitance be present, prepare the floor using Watco Etch & Clean. Flush with clean water and allow the surface to dry.

Remove the two inner tins from the tall outer tin. Stir the contents of each tin thoroughly and pour all of the contents into the outer tin (scrape around the inside of the tins to remove any residue). Mix the components together thoroughly using a spatula or similar wide bladed tool (a piece of wooden batten is ideal). Continue mixing until an even colour and consistency are obtained. Do not mix more than one pack at a time. If a paint stirrer fitted to an electric drill is used, also use the spatula to blend in any unmixed material from the sides and bottom of the tin.

Apply with a medium pile roller, working well into the surface of the concrete. Do not exceed the maximum coverage of 30m2 per 5 litre pack, per coat.