Colour: Matt Black. Size: 250ml. Rustins Quick Dry Masonry Paint is a high-quality, acrylic paint which is suitable for dry exterior masonry surfaces. To apply, use a large brush and apply evenly. The surface area must be clean, dry, free from dust and other contaminants likely to affect adhesion. No primer is required if fresh mortar has been applied to pointing. Do not use on damp surfaces. One coat is usually sufficient. Drying time: approx. 30 mins, depending on temperature and humidity. Re-coat: 4 hours. Coverage: 14m per 1 litre.