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. Key features include a Super Concentrated Formula, Easy to Disperse properties, Strong Colouring Power, and suitability for Concrete, Mortar & Cement, providing a Consistent Black Finish. Add directly to mix as per dosage instructions. Keep out of reach of children. Wear appropriate PPE. Manufactured by Everbuild Building Products Ltd.