GENERAL DESCRIPTION: WBS-7800 is a light-weight, dimensionally stable, tough, machinable urethane board.
| Color | White |
| Density (g/cm) | .80 |
| Flexural Strength | 7,100 psi |
| Flexural Modulus | 3.210 5 psi |
| Tensile Strength | 4,720 psi |
| Glass Transition Temperature (TG) | 91ºC |
| Co-efficient of Thermal Expansion | 3.3 x 105 in/in/ºF |