Thermoforming Plastic Sheet & Roll Stock. We supply high-quality thermoforming plastic sheets/fil/roll stocks for multiple industries. Our plastic sheet and roll stock materials are suitable for pressure & vacuum forming, die-cutting, printing, fabricating, and more. Recyclable HDPE (high-density polyethylene), LDPE (Low-Density Polyethylene), PP (Polypropylene), PET, PVC, HIPS (High Impact Polystyrene) plastic sheets and rolls, available in various sizes, thicknesses, and custom lors