3M. Series 230 is a durable, dimensionally stable film with a clear, pressure-sensitive adhesive designed to withstand a variety of severe weather and handling conditions. It is available in 50 colors and is an EDGE READY material in 15” Punched format. Series 230 comes on a synthetic liner. Series 230 is intended for making permanent, durable printed graphics using Gerber thermal printing devices. It is well suited for flat, internally illuminated sign.