Neuthane 801-NG (3 Component) MDI - PTMEG Quasi Systems (60 - 95 Shore A)

Properties

The Neuthane 801 series are high performance MDI - PTMEG ether quasi systems designed to produce items for use in arduous application areas.

They offer:

  • a high level of physical properties
  • good dynamic performance
  • good hydrolysis resistance
  • high resilience
  • low viscosity
  • low process temperatures

Typical Applications

  • Wheels (e.g. fork truck, pallet truck and press on bands)
  • In-line roller blade wheels
  • Mining and quarrying (e.g. screen decks, scraper blades)
  • Hydrocyclones
  • Automotive (e.g. suspension bushes)
  • Roll covering

Processing can be by hand or by dispensing machine

Hand Processing

  • Melt ISO component at 30-40°C, POLYOL component at 50-60°C and BD at 40°C for 12-24 hours
  • Ensure components are completely liquid and thoroughly mixed prior to use
  • Bring all components to the recommended process temperature.
  • Add pigments and Antifoam (as applicable) to the polyol component whilst mixing
  • It is recommended that air be removed from the ISO component under vacuum
  • prior to addition of the curative
  • Add all components and thoroughly mix ensuring that no unmixed material is left on the container sides (if necessary the mix can be transferred to a second clean container and mixed again)
  • Remove air under vacuum
  • Cast into moulds, preheated to the recommended temperature
  • Cure as recommended

Processing Considerations

  • Avoid moisture contamination of all materials.
  • Part used containers should be flushed with dry nitrogen and resealed immediately after use
  • It is vital to ensure that both components are completely liquid and thoroughly mixed prior to use
  • Due to the exothermic nature of the system, larger mixes will have a shorter pot life

Alternatives

  • Solvents - ester based systems should be considered: Neuthane 200 [TDI], Neuthane 700 [MDI prepolymer] or Neuthane 802 [MDI quasi]
  • Cost – Ester systems can be considered: Neuthane 700 [MDI prepolymer] or Neuthane 802 & 803 [MDI quasi]
  • Temperature – Neuthane 100 [TDI PTMEG] or Neuthane 500 [Aliphatic Isocyanate] based systems may be considered

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Neuthane 801-NG (3 Component) MDI - PTMEG Quasi Systems (60 - 95 Shore A)

Neuthane 60 65 70 75
Mix Ratio N801 ISO-NG by weight 100 100 100 100
Mix Ratio N801 POLY-NG UC by weight 260 229.2 209.8 161.5
Mix Ratio Butanediol by weight 5.40 7.00 8.00 10.50
Neuthane 801ISO-NG Temperature °C 45 45 45 45
Neuthane 801POLY-NG Temperature °C 55 55 55 55
Butanediol Temperature °C 45 45 45 45
Recommended Mould Temperature °C 90 - 100 90 - 100 90 - 100 90 - 100
Pot life (250g mix adjustable with Cat 44 level) minutes 2-4 2-4 2-4 2-4
Recommended Cure Temperature / Time °C / hrs 70 / 16 70 / 16 70 / 16 70 / 16
Hardness DIN 2240-91 Shore A 60 65 70 75
DIN 2240-91 Shore D - - - -
100% Modulus BS 903 Pt A2 - ISO 37 lb/in²

(Mpa)

290

(2)

304

(2.1)

377

(2.6)

536

(3.7)

300% Modulus BS 903 Pt A2 - ISO 37 b/in²

(Mpa)

536

(3.7)

609

(4.2)

812

(5.6)

1174

(8.1)

Tensile Strength BS 903 Pt A2 - ISO 37 b/in²

(Mpa)

1247

(8.6)

1595

(11)

2074

(14.3)

2610

(18)

Elongation at Break BS 903 Pt A2 - ISO 37 % 437 425 411 446
Tear (Die C) ISO 34-1 KN/m 33.9 37 42.8 65
Compression Set BS903 Pt A6 - ISO 815 %
Abrasion loss DIN 53516 mm³ <50 <50 <50 <50
Resilience ASTM D 2632-92 % 66 65 62 55
Specific Gravity g/cm³

Neuthane 801-NG (3 Component) MDI - PTMEG Quasi Systems (60 - 95 Shore A)

Neuthane 80 85 90 95
Mix Ratio N801 ISO-NG by weight 100 100 100 100
Mix Ratio N801 POLY-NG UC by weight 123 94 74.7 36.2
Mix Ratio Butanediol by weight 12.50 14.00 15.00 17.00
Neuthane 801ISO-NG Temperature °C 45 45 45 45
Neuthane 801POLY-NG Temperature °C 55 55 55 55
Butanediol Temperature °C 45 45 45 45
Recommended Mould Temperature °C 90 - 100 90 - 100 90 - 100 90 - 100
Pot life (250g mix adjustable with Cat 44 level) minutes 2-4 2-4 2-4 2-4
Recommended Cure Temperature / Time °C / hrs 70 / 16 70 / 16 70 / 16 70 / 16
Hardness DIN 2240-91 Shore A 80 85 90 95
DIN 2240-91 Shore D - - - -
100% Modulus BS 903 Pt A2 - ISO 37 lb/in²

(Mpa)

768

(5.3)

1015

(7)

1392

(9.6)

2697

(18.6)

300% Modulus BS 903 Pt A2 - ISO 37 b/in²

(Mpa)

1754

(12.1)

2074

(14.3)

2668

(18.4)

3843

(26.5)

Tensile Strength BS 903 Pt A2 - ISO 37 b/in²

(Mpa)

2929

(20.2)

4641

(32)

4931

(34)

4235

(29.2)

Elongation at Break BS 903 Pt A2 - ISO 37 % 403 493 471 359
Tear (Die C) ISO 34-1 KN/m 74.5 87 102.5 113
Compression Set BS903 Pt A6 - ISO 815 %
Abrasion loss DIN 53516 mm³ <50 <50 <50 <50
Resilience ASTM D 2632-92 % 51 48 41 35
Specific Gravity g/cm³

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