Everbuild Opti-Mix Cement Colourant in Black is a super concentrated formula designed to permanently colour all types of mortar, render, concrete, and pointing. Just one small dose delivers rich, even colouring without affecting mix strength. It disperses quickly, reduces mess, and is more economical than traditional powder-based colourants. Suitable for interior and exterior applications, this 1L bottle offers consistent results with minimal effort. Super Concentrated Formula Easy to Disperse Strong Colouring Power Suitable for Concrete, Mortar & Cement Consistent Black Finish Add directly to mix as per dosage instructions. Keep out of reach of children. Wear appropriate PPE. Everbuild Building Products Ltd.