How to apply bonding mortar/slurry primer to porcelain paving. A float works best to achieve a 2-3mm depth required so as to give the polymers enough bond strength to achieve a 2MPa bond strength. Always use a pre-mixed BS7533 bonding mortar ….. #landscapingexpert #landscapers #pavingexpert #patios #landscapersofinstagram #landscapers_of_instagram #ExpertWitness #landscape #landscapingideas | Gareth Wilson Garden & Landscaping Consultant