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SikaBiresin® PX840

(formerly UPX 8400-1)

  • Polyurethane vacuum casting resin for technical parts and prototypes
  • Variable hardness from 30 to 95 A Shore
  • 3 components to cover a large shore A range
  • Low viscosity
  • Easy to pigment
  • Fully compatible with ESSIL 291 silicone molds

  • 3-components for variable hardness
  • Low silicone molds agressivity
  • Can be easily pigmented with CP Colors, dedicated especially for pigmenting of Sika vacuum casting resins
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Areas of Application

  • Using by casting under vacuum in silicone molds to make soft prototype parts or small series of rubber like parts
  • Fully compatible with ESSIL 291 silicone molds
  • Prototype and short series of soft parts 
  • Simulation of elastic PU

Advantages

  • 3-components for variable hardness
  • Low silicone molds agressivity
  • Can be easily pigmented with CP Colors, dedicated especially for pigmenting of Sika vacuum casting resins