Nexus ProJoint Porcelain Paving Primer 20kg

Porcelain has very low absorption so it does not adhere well to sand & cement beds. To help the tile stick you need to use a primer on the underside of the tile. The tile should be clean, dry and free of any material which may impair adhesion - do not apply to shiny surfaces. Do not use in wet weather and do not use if frost is forecast within 24 hours of application. Suitable for use in temperatures between 3°C and 25°C.

Each tub contains two 10kg bags - 20kg covers approximately 21.5m² depending on the application method and paving porosity. ProJoint Porcelain Primer should be mixed with 2.8 litres of cold clean water per 10kg bag. Remove the bag from the bucket and add the water to the mixing container. Add the powder slowly and mix using a whisk. Mix for 2 minutes, leave standing for 2 minutes then re-mix - this process allows the polymer additives to dissolve and activate.

You can then apply to the back of the tile using either a brush or a roller. The pot life of the mixed slurry is approximately 60 minutes at 20°C. The primer should be completely dry prior to laying the paving. Depending on temperature and moisture, primer will be dry within 10 to 15 minutes, however the paving can be laid up to 24 hours after application.

Remove any primer from the sides or face of the tile immediately - do not let this dry as it can be extremely hard to remove once dried.