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High Performance Cast Elastomers |
Neuthane 802-NG Series (3 Component) MDI - Ester Quasi Systems (55-95 Shore A) |
TDS (Technical Data Sheets) PDF versions
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Neuthane 802AWB Three component PLASB Low hardness
Uncatalysed
Neuthane 802NG UC - 3-Component C44 Injection
Neuthane™ 802-NG Series (3 Component) MDI - Ester Quasi Systems (55 - 95 Shore A)
Properties
The Neuthane 802 series are high performance MDI - ester quasi systems designed to produce items for use in arduous application areas.
They offer:
- a high level of physical properties
- good cut and abrasion resistance
- good chemical resistance
- higher levels of physical properties at low end of
the hardness range compared to TDI systems - low process temperatures
Typical Applications
- Wheels (e.g. pallet truck)
- Mining and quarrying (e.g. screen decks, scraper blades)
- Oil and gas industry (e.g. gaskets, pipe pigs)
- Automotive (e.g. suspension bushes)
- Concrete Industry (e.g. moulds for decorative slabs and walls)
Processing can be by hand or by dispensing machine
Hand Processing
- Melt ISO component at 45°C, POLYOL components at 55°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 materialis left on the container sides (if necessary the mix can be transferred to a
second clean containerand mixed again) - 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
- Humid/Wet - PTMEG ether based systems should be considered: Neuthane 100 [TDI], Neuthane 600 [MDI] or Neuthane 500 [Aliphatic]
- Dynamic/Resilience - PTMEG ether based materials should be considered: Neuthane 100 [TDI], Neuthane 600 [MDI] or Neuthane 801 [MDI Quasi]
- Temperature – Neuthane 100 [TDI PTMEG] or Neuthane 500 [Aliphatic Isocyanate] systems may be considered
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High Performance Cast Elastomers |
Neuthane 802-NG (3 Component MDI - Ester Quasi Systems (55 - 95 Shore A) |
Neuthane 802-NG | Hardness Shore A |
55 | 60 | 65 | 70 | 75 | |
Mix Ratio N802 ISO-NG | by weight | 100 | 100 | 100 | 100 | 100 | |
Mix Ratio N802 POLY-NG UC | by weight | 274.4 | 191.5 | 163.14 | 143.8 | 121.04 | |
Mix Ratio 1,4 Butane Diol | by weight | 3.73 | 7.84 | 9.24 | 10.19 | 11.32 | |
Neuthane 802 ISO-NG Temperature | °C | 45 | 45 | 45 | 45 | 45 | |
Neuthane 802 POLY-NG Temperature | °C | 55 | 55 | 55 | 55 | 55 | |
1,4 Butane Diol Temperature | °C | 45 | 45 | 45 | 45 | 45 | |
Optimum Mould Temperature | °C | 90 - 100 | 90 - 100 | 90 - 100 | 90 - 100 | 90 - 100 | |
Pot life (250g mix adjustable with Cat 44 level) • • • • (See footnote) | minutes | 2-4 | 2-4 | 2-4 | 2-4 | 2-4 | |
Recommended Cure Temperature / Time | °C / hrs | 70 / 16 | 70 / 16 | 70 / 16 | 70 / 16 | 70 / 16 | |
Hardness | DIN 2240-91 | Shore A | 55 | 60 | 65 | 70 | 75 |
DIN 2240-91 | Shore D | - | - | - | - | - | |
100% Modulus | BS 903 Pt A2 - ISO 37 | Mpa | 1.5 | 1.9 | 2.6 | 3.1 | 3.5 |
300% Modulus | BS 903 Pt A2 - ISO 37 | Mpa | 2.1 | 3.2 | 4.6 | 5.8 | 5.9 |
Tensile Strength | BS 903 Pt A2 - ISO 37 | Mpa | 18 | 24 | 26 | 27 | 36 |
Elongation at Break | BS 903 Pt A2 - ISO 37 | % | 680 | 680 | 620 | 610 | 600 |
Tear (Die C) | ISO 34-1 | KN/m | 29 | 42 | 53 | 59 | 71 |
Tear (Trouser) | ISO 34-1 | N/mm | 8 | 11 | 18 | 18 | 19 |
Abrasion loss | DIN 53516 | mm³ | <40 | <40 | <40 | <40 | <40 |
Resilience | ASTM D 2632-92 | % | 52 | 50 | 50 | 49 | 45 |
Compression Set | ISO 815 | % | 30 | 30 | 30 | 30 | 30 |
Specific Gravity | g/cm³ | 1.16 | 1.17 | 1.17 | 1.18 | 1.18 |
Neuthane 802-NG | Hardness Shore A |
80 | 85 | 90 | 95 | |
Mix Ratio N802 ISO-NG | by weight | 100 | 100 | 100 | 100 | |
Mix Ratio N802 POLY-NG UC | by weight | 88.1 | 74.4 | 57.94 | 42.73 | |
Mix Ratio 1,4 Butane Diol | by weight | 12.95 | 13.60 | 14.43 | 15.20 | |
Neuthane 802 ISO-NG Temperature | °C | 45 | 45 | 45 | 45 | |
Neuthane 802 POLY-NG Temperature | °C | 55 | 55 | 55 | 55 | |
1,4 Butane Diol Temperature | °C | 45 | 45 | 45 | 45 | |
Optimum 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 | Mpa | 4.9 | 6.1 | 7.6 | 9.6 |
300% Modulus | BS 903 Pt A2 - ISO 37 | Mpa | 9.8 | 11.1 | 14.2 | 17.3 |
Tensile Strength | BS 903 Pt A2 - ISO 37 | Mpa | 46 | 53 | 53 | 56 |
Elongation at Break | BS 903 Pt A2 - ISO 37 | % | 600 | 600 | 590 | 570 |
Tear (Die C) | ISO 34-1 | KN/m | 83 | 92 | 100 | 116 |
Tear (Trouser) | ISO 34-1 | N/mm | 24 | 26 | 32 | 43 |
Abrasion loss | DIN 53516 | mm³ | <40 | <40 | <40 | <40 |
Resilience | ASTM D 2632-92 | % | 40 | 36 | 36 | 35 |
Compression Set | ISO 815 | % | 28 | 28 | 29 | 30 |
Specific Gravity | g/cm³ | 1.18 | 1.18 | 1.18 | 1.18 |
• • • • Footnote – Precatalysed 802NG system also available – please contact Notedome’s Technical Dept for further details.
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