Neuthane 801 75D - MDI - PTMEG Castable Elastoplastic

Properties

This series is a high performance MDI – PTMEG ether prepolymers designed to produce items for use in arduous application areas.

They offer:

  • Good impact resistance
  • Very good dynamic performance
  • High Tensile Strength
  • High E modulus
  • Rapid cure and green strength
  • Excellent hydrolysis resistance
  • Excellent chemical resistance
  • Good gloss and surface appearance

Typical Applications

  • Wheels
  • Pulleys
  • Impellors
  • Stators

Processing can be by hand or by dispensing machine

Machine Processing

  • Process ISO at 25°C
  • Process Poly at 55°C
  • Tooling at 100°C
  • Material elastomeric at point of demould
  • Post cure 16hr at 90°C
  • Typical 30 min demould time

Hand Processing

  • Long pot life enables hand processing

Processing Considerations

  • Pails or Drums must be melted and rolled so material is fully mixed before use
  • Avoid moisture contamination of all materials
  • Remove air, under vacuum, from both components prior to use
  • Part used containers should be flushed with dry nitrogen and resealed immediately after use
  • Good tooling temp control for high gloss and surface appearance

Neuthane 801 75D - MDI - PTMEG Castable Elastoplastic

Neuthane 80
Mix Ratio N801 ISO D by weight 100 Grammes
Mix Ratio N801 75D Poly by weight 100 Grammes
Viscosity @ 25°C - N801 ISO D cps 140
Viscosity @ 55°C - N801 75D Poly cps 600
Recommended Mould Temperature °C 100 - 105
Pot life (on a 500g mix) minutes 10
Demould time minutes 30
Recommended Cure Temperature / Time °C / hrs 90 / 16

 

Hardness DIN 2240-91 Shore A 80 (Hot at 30 minute Demould)
DIN 2240-91 Shore D 75
10% Modulus BS 903 Pt A2 - ISO 37 lb/in²

(Mpa)

7397

(51)

E Modulus ISO 527-2-1A-50

50mm/min Test Rate

lb/in²

(Mpa)

263969

(1820)

Tensile Strength BS 903 Pt A2 - ISO 37

500mm/min Test Rate

lb/in²

(Mpa)

7542

(52)

Tensile Strength BS 903 Pt A2 - ISO 37

50mm/min Test Rate

lb/in²

(Mpa)

6092

(42)

Elongation at Break BS 903 Pt A2 - ISO 37 % 18
Compression Set BS903 Pt A6 - ISO 815 % -
Abrasion loss DIN 53516 mm³ -
Resilience ASTM D 2632-92 % -
Impact Strength KJ / m² 8.5
Shrinkage (Cube 115x115x115) % 1.5
Specific Gravity g/cm³ 1.16

Information contained in the data is, to the best of our knowledge, true and accurate. Since conditions of use are beyond our control, no warranty is given or implied in respect of any recommendations or suggestions made by ourselves, nor is freedom from patent infringement inferred.