Equipment and Materials
The crystal clarity and long-term weatherability of ACRYLITE® extruded (FF) acrylic sheet allow for painting and printing on fabricated signs, displays, and other decorative items. Using the correct materials will help you produce a quality product.
The increased use of ACRYLITE® extruded (FF) sheet in signs and other decorative applications has led to a variety of paints designed especially for acrylics. Most are supplied as concentrates and require thinner to obtain the correct viscosity. As a rule, use mild thinner consisting of an alcohol blend, rather than one containing aromatic hydrocarbons. Benzene and toluene are two examples of aromatics. Follow paint supplier’s recommendations on the amount and type of thinner.
ACRYLITE® extruded (FF) sheet’s extraordinary transparency allows backpainting – applying paint to the side of the material that will not be exposed to the weather. Thus, the unpainted outer surface of the acrylic provides weather protection for the paint. However, if you must paint the outer surface, apply a protective coating over the paint. Paint suppliers can recommend a suitable coating.
Any efficient atomizing spray gun system, which will uniformly distribute paint, may be used. Consult equipment suppliers regarding the equipment needed for a particular application. See the listing of suppliers at the end of this brief. Many paint suppliers also publish excellent manuals which provide up-to-date equipment suggestions.
The problems listed represent the most common concerns when painting ACRYLITE® extruded (FF) acrylic sheet. Most paint manufacturers publish excellent paint manuals that contain much more detailed information on troubleshooting paint problems. Consult these manuals or the paint manufacturer regarding problems not covered here.