Combidur® High Impact

Combidur® High Impact

For innovative solutions that break new ground

Combidur® HIGH IMPACT thermoforming blanks are manufactured to the highest industrial quality standards using biocompatible, splinter-free, flexible and clear PMMA-based high impact high performance acrylic. Especially for the production of bite splints of all kinds, as well as one-piece denture bases both with and without acrylic clasps and retention aids for removable prosthetics.


Material features:

  • Meets the additional requirements for high impact acrylics according to EN ISO 20795-1
  • Acrylate-based high-performance acrylic


  • Residual monomer content <0.3%
  • Crystal clear (invisible clasps)
  • Excellent chemical-mechanical bond with acrylate-based autopolymerising PMMA denture base materials such as B. Weropress® and Combipres N / LM
  • Burns without residue
  • Can remain permenantly in the mouth
  • No risk of injury from splinters
  • Very high resilience, shows no material fatigue
  • Normal processing with cross-cut milling cutters
  • Twice as high fracture stability as with high impact heat curing acrylics
  • Free of glycol-bisphenol-A and phthalate-free
  • Easy to polish
  • Colour stable, plaque resistant
  • Tested biocompatibility according to EN ISO 10993-1
  • Expandable, relined, buildable

Physical Data

Physical data

Properties Result Test method
Transition temperature 110 °C ISO 11357
Flexural strength 87 ± 2 MPa ISO 10477
Flexural modulus 1780 ± 40 MPa ISO 20795-1
Impact strength 70 ± 10 kJ / m² ISO 179, 1eU
Work of fracture 3200 ± 200 J/m² ISO 20795-1
Fracture toughness 2.6 ± 0.1 MPa* √ ISO 20795-1


  • Occlusion splints / bite splints
  • One-piece denture bases
  • Deep-drawn clasp bases
  • One-piece denture bases with acrylic clasps / retention aids
  • Bleaching trays
  • Drilling templates
  • Bite templates
  • Set-up templates
  • Functional and impression trays



Dimensions Colour (clear)
Ø 120 x 1.5mm
Ø 120 x 2.0mm
Ø 120 x 2.5mm