Growclear LB 40 Description Application: An acrylic lacquer for top-coating on electroplated or mechanically finished Gold, Silver, Nickel, Copper, Aluminium, satin Nickel, solid Brass, Brass plate, and plated dye cast products. The Growel Advantage: It features 3H-5H pencil hardness with excellent film clarity and is useful for imitation jewellery, hardware, pen and fitting components. get a quote