Granitex

Gently tamp down the ‘wet primed’ porcelain paving onto the mortar bed using the rubber mallet. adjustment will be necessary to ensure that the paving is fully supported, does not rock or move and use a straight edge with a spirit level repeatedly to check that each paving element achieves the desired level and fall as per the string line.
immediately wipe off any slurry primer that may have unintentionally found itself of the face of any of the paving as you will not be able to remove this once it has set.
when laying more than one pack of paving, lay tiles from different packs to eliminate colour banding and to obtain the best colour blend.
use joint spacers or pieces of 6mm plywood to help maintain a regular joint width between the paving elements.