SikaBiresin® UR303

  • 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