RAMPF® WB-0801

Polyurethane Board for Tools & Molds

Key Properties of Rampf WB-0801 include:

  • Fine surface structure
  • High HDT and very low CTE
  • Good dimensional stability
  • Good compressive and flexural strength

Typical Properties

ColorGray
Density (ρ)49.9 lb/ft3 [0.80 g/cm3]
Hardness65 – 70 Shore D
Flexural Strength5,100 – 5,800 psi [35 – 40 MPa]
Flexural Modulus220,000 – 230,000 psi [1,500 – 1,600 MPa]
Compressive Strength5,800 – 6,500 psi [40 – 45 MPa]
Coefficient of Thermal Expansion (CTE)(25 – 28) x 10-6 in/in°F [(45 – 50.4 ) x 10-6 m/m/°C]
Deflection Temperature, HDT185 – 194°F [85 – 90°C]

Available Sizes

1.0” x 19.7 x 59.1 (25mm x 500mm x 1500mm)
2.0” x 19.7 x 59.1 (50mm x 500mm x 1500mm)
3.0” x 19.7 x 59.1 (75mm x 500mm x 1500mm)
3.9” x 19.7 x 59.1 (100mm x 500mm x 1500mm)

Machining

Cutters:

Roughing – 1”(25.4mm) Hog Ball End Mill, 4-flute, HS Steel 8% Cobalt
Finishing – 5/8”(15.875mm) Ball End Mill, 2-flute carbide
Depth:

Roughing – varied from ¼”(6.35mm) to 2.5”(63.5mm) with 40% stepover
Finishing: 1/8”(3.175mm)deep leaving 0.002” (0.050mm) scallop height

Roughing speed: 1,600RPM ∙ Roughing Feed 40IPM
Finishing speed: 10,000RPM ∙ Finishing feed 100IPM

Safety

Good workplace ventilation is to be ensured during processing. At the same time, the employer’s liability insurance association’s industrial hygiene safety regulations regarding the handling of reaction resins and their hardeners are to be observed. Please take heed of the appropriate safety data sheets.

The material should be stored flat and in a dry place. Temperature variations should be avoided during storage and transportation.

The product should be machined at ambient room temperature (68-77°F (20-25°C)).

Applications

  • Master Models
  • Cubing Models
  • Tooling Jigs and Fixtures
  • Vacuum Forming Tools