For reasons of hygiene and safety, personal grooming products, cosmetics or items of intimate clothing cannot be returned. Surface Preparation - New plaster of plasterboard should be sealed with a plaster sealer. For non-powdery surfaces or to cover contrasting colours, prepare with a walls and ceilings primer. Painted surfaces should be sanded, clean and dry. Remove any loose or flaking material. Fill any holes or defects with filler. When sanding, wear a face mask to avoid dust inhalation Unwanted Food or Drink Products - Once supply conditions are broken, there are a number of factors outside of our control that can affect the quality of a product. Therefore perishable goods such as food and drink cannot be returned. Instructions for Use - Stir to ensure paint is completely mixed in hot environments. If new, bare and absorbent surface, seal with this product, thinned 10% with water if necessary. Apply 2 coats with a brush or roller, leave 2-4 hours between coats. Do not apply in very damp or humid conditions or in extreme temperatures. If the colour change is strong then more coats may be required. If you use more than one can, mix them together in a large container or finish in a corner before starting a new can. Leave 2-4 hours to dry.