ProRend Prep is a high-quality factory manufactured dry mortar especially suited for levelling and renovation on mineral and synthetic backgrounds. It is well suited to low and high suction backgrounds such as lightweight block or pre-cast concrete. What are the features of ProRend Prep Basecoat? Hand or machine applied Ideal for substrates with variable or wide-ranging suction Suitable basecoat for all ProRend decorative renders or masonry paint Can be smooth finished, sponge textured or keyed to receive a subsequent coat Technical Coverage: 1.1 kg/mm/m2Shelf Life: 6 monthsCuring: 1 mm/dayL1 - Set Mortar Density: 1.20 kg/m3L2 - Comprehensive Strength: 3.50 N/mm2L8 - Water vapour permeability, (EN 1745:2002 4.2.1 Table A12): 5/20Reaction to fire: A2Maximum grain size: 1.00 mmE module, coefficient of elasticity: 3,300.00 N/mm2