Neuthane™ 500 Series Aliphatic - PTMEG Ether Prepolymer (94 Shore A - 70 Shore D)
Neuthane™ 500 Series Aliphatic - PTMEG Ether Prepolymer (94 Shore A - 70 Shore D)
Properties
The Neuthane™ 500 series are high performance Aliphatic Isocyanate prepolymers designed to produce items for use in extreme application areas.
Features
- a very high level of physical properties
- exceptional dynamic performance
- the highest level of hydrolysis resistance
- ease of use
- low viscosity
- water clarity and UV stability*
- wide hardness range depending upon curative used
Typical Applications
- High load roll coverings (e.g. steel industry)
- Roller coverings for use in hot/wet environments (e.g. pre treatment
and squeegee rolls in the steel industry) - High temperature applicationsPaper mill rollers
Processing can be by hand or by dispensing machine
Hand Processing
- Melt prepolymer at 50-70°C for 12-24 hours (as a guide the grades with the lower NCO value will take longer to melt than those with very high level NCO values)
- Heat the prepolymer and curative to the recommended temperature
- Add pigments and Antifoam, as applicable, whilst mixing
- It is recommended that air be removed from the prepolymer under vacuum prior to addition of the curative
- Add the curative 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
- Avoid prolonged storage of prepolymers at elevated temperatures.
- This will result in low hardness and lower properties of the cured material
- Avoid moisture contamination of all materials
- Ensure thorough mixing of curatives prior to use
- Remove air, under vacuum, from the prepolymer components prior to use
- Part used containers should be flushed with dry nitrogen and resealed immediately after use
Alternatives
- Solvents – ester based systems should be considered Neuthane™ 200 [TDI] or Neuthane™ 700 [MDI]
- Cost – Aromatic Isocyanate / PTMEG based systems should be considered: Neuthane™ 100 [TDI] or Neuthane™ 600 [MDI]
Neuthane™ 500 Series Aliphatic - PTMEG Ether Prepolymer (94 Shore A - 70 Shore D)
Neuthane™ 575 + CA575 Curatives - Aliphatic – PTMEG Ether Systems (70 - 95 Shore A)
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.
Neuthane™ 500 Series
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