Acrylic primer for use as part of the Luja hygiene system. Forms a tight impervious primer film which when used with Luja finishing coats prevents impregnation of moisture during repeated washing or constant high humidity. Suitable for new and old surfaces, plaster, dry lining board, previously painted alkyd coatings, timber, wood fiber board, blockwork and concrete. This primer is well suited to kitchens, bathrooms, hospitals, swimming pools, areas of high traffic, etc.