The PORON® 4790-92 from Rogers Corporation is an extra soft, slow rebound Polyurethane Foam. It provides excellent protection for lower energy impacts and is conformable yet returns to its original shape, allowing for long-term performance. This foam has a thickness from 0.53 to 12.7 mm (0.021 to .5 in.) and a density from 144 to 480 kg/m3 (9 to 30lb/ft3). It is suitable for distributing low energy impacts and gap filling, gasketing or sealing applications.