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Norcros Rock-Tite Primer is fibre-reinforced, polymer modified cement-based primer designed to improve adhesion and bond strength when applied to the underside of porcelain and other low-absorption types of paving.
Easy to use and suitable for use in both internal and external settings, Norcros Rock-Tite Primer is ideal for floor prep in both domestic and heavily trafficked installations. Mixing and application is incredibly simple - just use the included graduated mixing bucket, add water, mix until smooth and then apply an even coat of the slurry over the underside of each slab using a suitable brush or roller before laying onto the mortar bed. Watch Rock-Tite Installation Video