weber.mix RM is a colored cement grouting mortar, with trace additive, ready for use after mixing with water. Intended for finishing grouting joints of walls, chimneys, fireplaces, arches, vaults, fences and other elements made of clinker, ceramics, silicate bricks as well as blocks, concrete. Suitable for grouting joints of facade tiles, natural and artificial stone, hand-made tiles with a thickness of no more than 20 mm.