Humbrol AV0001 Weathering Powder, Black Used to create realistic weathered effects Weathering Powder can be applied to most substrates depending on method Weathering Powder can be applied dry or mixed with several Humbrol products Turn your model kit into a masterpiece! Humbrol offers a wide range of paints and accessories. Ranging from Enamels, Acrylics, Spray Paints, Paint brushes, adhesives and more. Humbrol Paint is listed on every Airfix Plastic Model that will enable you to create the best finish for your model