All Model & Tooling Boards SCP – Solid Castable Polyurethane1/4 x 30 x 55SCP – Solid Castable Polyurethane3/8 x 30 x 55MB 6 lb – Model & Tooling Foam Board6 x 48 x 96MB 4050 – High Impact Foundry Plank4 x 24 x 60MB 4050 – High Impact Foundry Plank3 x 24 x 60MB 4050 – High Impact Foundry Plank2 x 24 x 60MB 4000 – Foundry Plank5 x 24 x 60MB 4000 – Foundry Plank4 x 24 x 60MB 4000 – Foundry Plank3 x 24 x 60MB – 4000 – Foundry Plank2 x 24 x 60