Neuthane 3100DV - MDI - PTMEG Ether Rotational Casting System

Properties

The Neuthane 3100DV series are high performance MDI – PTMEG ether rotational casting systems designed to produce roller coverings for use in arduous application areas.

They offer:

  • a high level of physical properties
  • very good dynamic performance
  • good hydrolysis resistance
  • non MOCA curatives
  • processing without moulds
  • room temperature curing

Typical Applications

  • Steel mill rollers
  • paper mill rollers

Processing can be by hand or by dispensing machine

Hand Processing

  • Melt prepolymer at 50-70°C for 12-24 hours
  • Heat the prepolymer and curative to the recommended temperature
  • Ensure that the curative is thoroughly mixed prior to use (the storage tank on the machine should be fitted with agitation to prevent separation during use)
  • Degass to remove air
  • Adjust rotation and traverse speed until a smooth build up is achieved
  • 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 material
  • Avoid moisture contamination of all materials
  • Part used containers should be flushed with dry nitrogen and resealed
    immediately after use
  • To prevent de-lamination, subsequent layers should be applied within 30 minutes

Alternatives

  • Solvents/Abrasion/Cut resistance - Ester based systems should be considered: Neuthane 3200 [MDI rotational casting]
  • Cost – Ester systems will offer cost savings: Neuthane 3200 [MDI rotational casting] PPG ether systems will also offer advantages [Neuthane 3300*]

* Non-standard products - details are available upon request

Neuthane 3100DV - MDI - PTMEG Ether Rotational Casting System

Neuthane 3100DV
Curative 3193DV
Mix Ratio: Curative per 100 Parts Resin by weight 72
Resin Temperature °C 50
Curative Temperature °C 25
Recommended Roller Temperature °C Room Temperature
Viscosity @ 50°C (N3100DV)

(Viscosity vs. Temp Graphs available on request)

cps 1125
Pot life (on a 500g mix) Seconds 10-15
Recommended Cure Temperature / Time °C / hrs Room Temperature / 48
Hardness DIN 2240-91 Shore A 93
DIN 2240-91 Shore D -
100% Modulus BS 903 Pt A2 - ISO 37 lb/in²

(Mpa)

2150

(14.8)

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

(Mpa)

6150

(42.35)

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

(Mpa)

6525

(44.93)

Elongation at Break BS 903 Pt A2 - ISO 37 % 310
Tear Strength BS 903 Pt A3 - ISO 34-1 lb/in

(KN/m)

405

(70.9)

Compression Set BS903 Pt A6 - ISO 815 % -
Abrasion loss DIN 53516 mm³ -
Resilience ASTM D 2632-92 % -
Specific Gravity g/cm³ 1.09

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