Max Flex Plus Additive is an acrylic polymer additive specifically formulated to be mixed with bonded cement-based renders and adhesives to increase strength and flexibility. Max Flex Plus Additive can be mixed with Colour-In SG Grout when grouting over substrates prone to movement e.g. timber floors, lift foyers, train stations. Max Flex Plus Additive can be mixed with sand and cement for increase strength and flexibility and mixed with neat cement as a slurry coat.