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SikaBiresin® UR303

(formerly Biresin® U1303)

  • Elastomeric casting system for mold making
  • Available with 3 B components for Shore A 73, A 81 or A 90

  • Insensitive to moisture
  • Rubbery
  • Good tensile strength and elasticity
  • Several B components for different Shore
  • hardness levels
  • Very low shrinkage
  • Dyeable with SikaBiresin® Colour Paste
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Areas of Application

  • Casting of flexible molds for ceramic and gypsum processing
  • Moulds for concrete moldings
  • Manufacture of flexible moldings and components 

Advantages

  • Insensitive to moisture
  • Rubbery
  • Good tensile strength and elasticity
  • Several B components for different Shore
  • hardness levels
  • Very low shrinkage
  • Dyeable with SikaBiresin® Colour Paste