TECNOTHANE® MDE 675

TECNOTHANE® MDE 675 is an MDI-based polyurethane with a polyester-caprolactone backbone.

Polymer Name: Polyurethane (MDI-based)

End Uses: Industrial Parts, Structural Parts

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Blend
No
Chemical Family
Polymer Name
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Markets
Applications
Application Information

Tecnothane® MDE675 is specifically designed for application of structural purpose at high hardness. It fits best in static application requiring a very rigid and long-lasting material.

Technical Details & Test Data

Casting Information
Hardness MDE675 R143CL Catalyst (%) Molds T (°C) Pot life (sec) Demolding (min)
80 ShD 100.00 16.00 * 90-100 90-120 7-20

The amount of main components is given on parts by weight.
*Pot life and demolding time are referred to the system without catalyst.

Post Curing Information

Do not allow excessive cooling of molded parts between demolding and post-curing.

Hardness Temperature (°C) Time (hours)
80 ShD 90 16

For hardness above 93 ShA, two annealing steps are recommended to quickly reach the best performances; let the material cool down to room temperature in between the 2 post curing processes.

Packaging & Availability

Regional Availability
  • Global
Packaging Information
Materials are available in following packaging: 25, 50 or 200 kg

Storage & Handling

Handling Information
  • In order to allow complete melting, pre-heat materials at following conditions (melting times are referred to 200 kg drums,stored at 20°C)
Pre-heating temperature (°C) 75
Pre-heating time (hours) 24
  • After pre-heating, make sure all materials are completely melted.
  • Well mix melted material by drilling or rolling the drum
  • Load materials to the machine immediately after mixing.
  • Materials must be stored under nitrogen blanket after use.

Other

Mechanical Properties
ValueUnitsTest Method / Conditions
Hardness78.0-82.0 Shore DShore DISO 7619-1
Tear Strength230.0 kN/mkN/mISO 34-1 90° with nick
Tear Strength260.0 kN/mkN/mISO 34-1 90° without nick
Tear Strength270.0 kN/mkN/mISO 34-1 crescent with nick
Tensile Strength65.0 N/mm²N/mm²ISO 37
Physical Properties
ValueUnitsTest Method / Conditions
Density1.22 g/cm³g/cm³ISO 2781
Viscosity13700.0-13000.0 mPa.smPa.s