High opacity paint to cover damp is ideal for use on plaster, brickwork, cement and stone. Formulated to safeguard against damp seeping through the final decoration, it can be over-coated with your choice of Johnstone’s emulsion product. Formulated to safeguard against damp seeping through. Easy to use. Dry time: 14-16 hours. Coverage (Per litre): 3 m². Note: Do not overspread the product, remove and clean any surface contamination, and ensure the reason for the damp is fixed. Follow the back of tin instructions on the letter. Item doesn't have an expiry date. Weight: 2.66649105889 pounds. Manufacturer: PPG Architectural Coatings UK & Ireland.