Karndean Universal: ideal for our gluedown ranges and most subfloors, this is a fibre reinforced adhesive which allows planks and tiles to be laid almost immediately after application. The fibre reinforced format reduces lateral movement during installation and offers improved indentation and shear resistance. This adhesive has GEV-EMICODE® EC1+ accreditation and is recommended for use with underfloor heating systems. Karndean Universal is applied with A2 notched trowel and needs 10 minutes or less for airing, and allows for 20 minutes working time.