Processing can be by hand or by dispensing machine

Hand Processing

• Melt prepolymer at 50-60°C for 12-24 hours
• 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 mixcan 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 prolonged storage of prepolymers at elevated temperatures.
• This will result in low hardness and lower properties of the cured materialAvoid moisture contamination of all materials
• Part used containers should be flushed with dry nitrogen and resealed immediately after use
• The development of cure is longer than for PTMEG systems.
• Rapid temperature changes during the early stage of cure should be avoided

Alternatives

• Dynamic / Resilience – Neuthane 100 [TDI-PTMEG] or Neuthane 600 [MDI-PTMEG]
• Solvents / Abrasion – ester based systems should be considered Neuthane 200 [TDI] or Neuthane 700 [MDI]
• Humid / Wet – MDI or Aliphatic Isocyanate based systems should be considered: Neuthane 600 [MDI] or Neuthane 500 [Aliphatic]