To get the best results, ensure surfaces to be painted are sound, clean and dry (new surfaces particularly must be fully dry), and free from all defective or poorly adhering material, dirt, grease and wax. New or bare surfaces should be primed with an appropriate Dulux Trade primer. Treat any knots in wood with an appropriate knotting solution.
Thoroughly rub down previously painted surfaces,using ‘wet flatting’ methods where possible, then wipe off with a damp, lint free cloth. Special precautions should be taken during surface preparation of pre-1960s paint surfaces over wood and metal as they may contain harmful lead.