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ProJoint Porcelain Primer 20Kg

Nexus Paving Systems ProJoint

ProJoint Porcelain Primer is

A high performance priming slurry for porcelain paving

The ProJoint Porcelain Primer is an ultra-high polymer and fibre modified flexible primer with excellent workability and adhesion properties. As a single coat fast application, ProJoint Porcelain Primer promotes adhesion and control suction on difficult substrates such as porcelain, concrete, ceramic tiles, paving slabs or setts.  Using the ProJoint Porcelain Primer enables the porcelain slabs or setts to be laid on a sand and cement bedding.

The powdered primer is supplied in two 10kg bags to allow the bucket to act as the ideal mixing vessel with the simple addition of water.

  • Single coat application to the underside of paving
  • Enables the paving to be laid on sand and cement bedding
  • Excellent workability and adhesion properties
  • Suitable for brush or roller application
  • Can be applied in low temperatures
  • Suitable for internal or external use
  • Two x 10kg bags contained within the lidded mixing tub

We recommend this primer be used prior to laying porcelain paving and using the ProJoint Porcelain Grout

You can add this product to your order, however there must be a pallet/half/three-quarter-pallet in the cart to checkout.

Need a custom deal? 0333 344 2655 or info@buythepallet.co.uk

£28.15 +VAT


ProJoint Porcelain Primer extended information

Coverage: approximate coverage is 25m2 depending on the application method and paving porosity

NB We recommend that ProJoint Porcelain Primer be used prior to laying paving and grouting porcelain paving with ProJoint Porcelain Grout.

ProJoint Porcelain Primer applicatiionProJoint Porcelain Primer is designed to be applied to the underside of porcelain paving and other low absorption substrates, to promote adhesion. The underside of the paving should be clean, dry and free of any material which may impair adhesion. Do not apply to shiny surfaces. ProJoint Porcelain Primer should not be used in wet weather and/or if frost is forecast within 24 hours of application. Suitable for use in temperatures between 3oC and 25oC.


ProJoint Porcelain Primer should be mixed with 2.8 litres of cold clean water per 10kg bag.

  1. Remove the bags from the branded bucket and add the water to the bucket.
  2. Add the powder slowly and mix using a plasterers’ whisk.
  3. Mix for 2 minutes.
  4. Leave to stand for 2 minutes. This is important as the process allows the polymer additives to dissolve and activate.
  5. Re-mix for a further 2 minutes.
  6. When wearing appropriate PPE, apply a thorough and even coat of the primer as a slurry using a masonry brush or roller to the underside of the paving. The pot life of the mixed slurry is approximately 60 minutes at 20oC. The primer should be completely dry prior to laying the paving. Depending on the temperature and moisture, the primer will be dry within 10 to 15 minutes, however the primed slabs can be left undercover and dry for up to 2 weeks prior to laying.

All tools should be washed out with water immediately after use. Waste material should not be emptied into drainage systems.

ProJoint Porcelain Primer video


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