High Performance Cast Elastomers    
Neuthane 3600 

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Neuthane 3600 Series

 

 

 

 

 

 

 

Technical information on NEUTHANE 3600 can be found by scrolling down the page ↓

Neuthane 3600  MDI-PTMEG Ether Quasi Systems

Properties

Neuthane 3600 is a high performance MDI – PTMEG ether rotational casting prepolymer. It is based on 2000 molecular weight PTMEG polyol.

When used with Neuthane or self-formulated curatives it will produce roller coverings for use in arduous application areas.

They offer:

  • a high level of physical properties
  • very good dynamic performance
  • good hydrolysis resistance
  • ease of use
  • high resiliance
  • processing without moulds

Typical Applications

  • Steel mill rollers
  • Paper mill rollers

Processing can be carried out by hand or by dispensing machine

  • 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
  • Dispense at 700-2000g per minute*
  • Adjust rotation and traverse speed until a smooth build up is achieved*
  • Cure as recommended

* This will vary depending upon diameter of roller. As a general guide the output rate, rotational and traverse speeds will all increase as the diameter of the roller increases

 

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 that the POLYOL component is 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

  • Dynamic/Resilience – PTMEG systems should be considered: NEUTHANE 600 [MDI prepolymer] or NEUTHANE 801 [MDI quasi]
  • Solvents/Abrasion - ester based systems should be considered: NEUTHANE 700 [MDI prepolymer], NEUTHANE 802 [MDI quasi] or NEUTHANE 200 [TDI prepolymer]
  • Humid/Wet - Aliphatic Isocyanate based systems should be considered: NEUTHANE 500 series

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High Performance Cast Elastomers    
Neuthane 3600 MDI-PTMEG Ether Prepolymer (6.45% NCO)
Neuthane 3600
%NCO (mid-point) % 6.45
Curative 1,4 - Butanediol
Suggested Stoichiometry % 98.5
Mix Ratio Curative per 100 Parts Resin by weight 26
Resin Temperature °C 75
Curative Temperature °C 25
Recommended Mould Temperature °C 105
Viscosity @100°C
Pot life (on a 500g mix) minutes 10
Recommended Cure Temperature / Time °C / hrs 105 / 16 + 24 at RT
Hardness DIN 2240-91 Shore A 84
DIN 2240-91 Shore D -
100% Modulus BS 903 Pt A2 - ISO 37 lb/in²

(Mpa)

780

(5.4)

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

(Mpa)

1700

(11.7)

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

(Mpa)

6210

(42.8)

Elongation at Break BS 903 Pt A2 - ISO 37 % 560
Tear Strength BS 903 Pt A3 - ISO 34-1 lb/in

(KN/m)

510

(89.4)

Abrasion loss DIN 53516 mm³ 12
Resilience ASTM D 2632-92 % 65
Specific Gravity g/cm³ 1.21

Data above represents typical physical properties. 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.

High Performance Cast Elastomers    
Neuthane 3200/765 - MDI - Ester Rotational Casting Systems (85-95 Shore A)
Neuthane 3200/765 3200/765 3200/765
Curative 3285/765 3290/765 3295/765
Mix Ratio: Curative per 100 Parts Resin by weight 35.2 29.3 26.7
Resin Temperature °C 75 75 75
Curative Temperature °C 40 40 40
Recommended Roller Temperature °C Room Temperature Room Temperature Room Temperature
Viscosity @ 100°C resin

(Viscosity vs. Temp Graphs available on request)

cps 800 800 800
Pot life (on a 500g mix) seconds 20 15 15
Recommended Cure Temperature / Time °C / hrs Minimum 20 / 48 Minimum 20 / 48 Minimum 20 / 48
Hardness DIN 2240-91 Shore A 85 90 95
DIN 2240-91 Shore D - - -
100% Modulus BS 903 Pt A2 - ISO 37 lb/in²

(Mpa)

990

(6.8)

1200

(8.3)

1230

(8.5)

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

(Mpa)

1480

(10.2)

1800

(12.4)

1850

(12.8)

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

(Mpa)

7500

(51.8)

7300

(50.4)

7500

(51.8)

Elongation at Break BS 903 Pt A2 - ISO 37 % 550 550 500
Tear Strength BS 903 Pt A3 - ISO 34-1 lb/in

(KN/m)

480

(84.0)

500

(87.5)

550

(96.3)

Specific Gravity g/cm³ 1.23 1.24 1.26

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 inferredv3