Komatex® : Material is closed-cell, expanded plastic, high-density poly vinyl chloride sheet. It is acid free and has minimal out gassing for Archival use. Sintra is a homogeneous material that allows the ease of cutting without regard for grain. At half the weight of solid PVC, may be stapled, nailed, riveted, glued, and thermoformed. Forming may be done on conventional forming machines. Because this material is not hydroscopic, it needs no drying pre-forming. It is available in 9 thickness’ 1mm-13mm all thickness’ are available in white, some thickness’ are also available in black & colors.