Mahr Unipre | PUR-Meter Mix Dispense Technology

Machines for the Processing of various Polyurethanes

Polyurethane | Good to know

Polyurethanes have been around since the 1940s

Nowadays people hear and read a lot about the materials, often in their common abbreviations PU or PUR. But what exactly are polyurethanes?In simple words: Plastics, whose applications are extremely versatile. They can be encountered almost everywhere in our everyday life, in the living room as armchair cushion, on the way to work in the car or public transports, as well as in many technical applications. And how are polyurethanes made? As general initial substances are polyols, isocyanates and catalysts. The polyaddition reaction of these substances produces polyurethane, which gains its specific properties through different crosslinking and different initial substances respectively to its application. In general, polyurethanes can be classified in foams and cell-free PUR elastomers.

Foam Groups

Flexible foams

Rigid foams

Integral foams

 

Cell-free PUR Groups

Solid polyurethanes

Flat polyurethanes

Special polyurethanes

 

Polyurethane | Properties

Polyurethanes are adjustable and therefore they can be assigned to fulfil specific properties

Foams

can have these properties:

  • hard or soft
  • more or less elastic
  • UV-resistant
  • solvent resistant
  • weldable
  • adhesive bondable
  • soundproofing
  • insulating
  • non-flammable
  • resistant to heat and humidity
  • smooth surface despite the cellular structure

Cell-free PUR elastomers

can have these properties:

  • high resilient
  • UV resistant
  • high wear resistant
  • oil resistant
  • heat deformation resistant
  • weatherproof
  • recyclable
  • chemical resistant
  • tension-equalizing
  • abrasion resistant
  • temperature resistant
Mahr Unipre | Meter Mix Dispense Solutions

Processing of Polyurethanes

Our experience of more than 4 decades in polyurethane processing is reflected today in the variety of our machine technology and our expertise in various processes. Our meter mix dispense technology is specialized for the low pressure range application.

Machine Types | Use for PUR-Applications
ApplicationsMarMax M 12MarMax CP 30MarMax CP 50MarMax CS 50Customized machines
PUR castings/elastomers
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PUR foaming
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PUR spraying
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Compact PUR
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PUR coating
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Where can Polyurethane be found?

  • Furniture cushion
  • Insulation
  • Bumpers
  • Shock absorber
  • Flooring
  • Assembly foam
  • Armrests
  • Sealing
  • Shoe soles
  • Airbag covers
  • Ground sealing
  • Cable sheathing
  • Outdoor clothing
  • Panel coating
  • Windscreen bonding
  • Mattresses
  • Adhesive bonding applications
  • Vacuum cleaner housing
  • Refrigerators
  • Electronic element encapsulation
  • Buffer damper
  • Pipe coating
  • Dashboards
  • Construction resin
  • Aircraft interior
  • Sieves
  • Shower cubicle
  • Toothed belt
  • Motor covers
  • Protective clothing
  • Store fittings
  • Ship decks
  • Traffic light housing
  • Adhesive tapes
  • Ballast consolidation
  • Roof linings
  • Foil lamination
  • Side panels
  • Paper rolls
  • Filter
  • Castor wheels
  • Loading areas
  • Shoe upper material
Overview | Our solutions for this application
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