Innovative Sign Systems is your source for all types of foam signs and HDU foam signs, including Foam Core Signs, HDU Signs, and More. Our service and selection are unrivaled in the industry, ranging from low-cost clay-coated paper with foam centers to more durable foam core signs with poly-coated and styrene surfaces. The majority of substrates are available in parent sizes of 4’x8′.

High Density Urethane is a rigid polyurethane product with a “closed cell” structure designed for continuous exposure temperatures of up to 200° F. HighDensity Urethane comes in a variety of standard sheet sizes and densities and can be cut or bonded into a variety of shapes for final machining or shaping. Lasts ten times as long as wood.