Neuthane 803 Series MDI – PPG Ether Quasi Systems (55 Shore A – 95 Shore A) 2 Component MDI – PPG Ether Quasi Systems (55 – 95 Shore A)

Properties

The Neuthane 803 series of MDI -PPG ether quasi systems are designed to offer a reasonable level of physical properties at a price advantage over MDI – PTMEG systems.

They offer:

  • a reasonable level of physical properties
  • low cost
  • good hydrolysis resistance
  • ease of use
  • low viscosity (liquid at room temperature)
  • low process temperatures
  • two and three component forms *
  • can be supplied silicone free under - SF suffix
  • mercury free

* Details available upon request

Typical Applications

  • Dunage
  • Non-dynamic roller coverings (e.g. conveyor rollers for the steel industry)
  • Scraper blades (e.g. snow plough blades)
  • Bump stops

Processing can be by hand or by dispensing machine

Hand Processing

  • Heat ISO and POLYOL component to 25-40°C
  • Ensure both components are completely liquid and thoroughly mixed prior to use
  • Add pigments and Antifoam, as applicable, to the POLYOL component whilst mixing
  • Add the ISO component 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 Considerations

  • Avoid moisture contamination of all materials
  • Part used containers should be flushed with dry nitrogen and resealed immediately after use
  • It is vital 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

Quick Guide to Hardness Range:

Hardness Neuthane Grade
Shore A Shore D
<30
40
50
55 Neuthane 803-ISOD + 803/55 = 55A
60 Neuthane 803-ISOD + 803/60 = 60A
65 Neuthane 803-ISOD + 803/65 = 65A
70 Neuthane 803-ISOD + 803/70 = 70A
75 Neuthane 803-ISOD + 803/75 = 75A
80 Neuthane 803-ISOD + 803/80 = 80A
85 Neuthane 803-ISOD + 803/85 = 85A
90 37 Neuthane 803-ISOD + 803/90 = 90A
95 43 Neuthane 803-ISOD + 803/95 = 95A

 

Neuthane 803 C26 Series

Neuthane Curative (Polyol) 803/55 803/60 803/65 803/70 803/75 803/80 803/85 803/90 803/95
Neuthane ISO 803-ISOD 803-ISOD 803-ISOD 803-ISOD 803-ISOD 803-ISOD 803-ISOD 803-ISOD 803-ISOD
Mix Ratio: Curative per 100 Parts ISOD by weight 350 308 278 253 230 220 197 173 150
Resin Temperature Curative Temperature °C °C 25 35 25 35 25 35 25 35 25 35 25 35 25 35 25 35 25 35
Recommended Mould Temp. °C 70-80 70 -80 70 -80 70 -80 70-80 70 -80 70 -80 70-80 70 -80
Viscosity (ISO @ 25 OC / Curative @ 35OC) cps 50/650 50/650 50/650 50/650 50/650 50/650 50/650 50/650 50/650
Pot life (on a 500g mix) mins 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6
Recommended Cure Temperature °C 90 90 90 90 90 90 90 90 90
Recommended Cure Time hrs 16 16 16 16 16 16 16 16 16
Hardness DIN 2240-91 Shore A 55 60 65 70 75 80 85 90 95
100% Modulus ISO 37 lb/in² (Mpa) 165 (1.14) 270 (1.86) 350 (2.41) 430 (2.69) 500 (3.45) 630 (4.34) 740 (5.10) 1180 (8.14) 1340 (9.24)
300% Modulus ISO 37 lb/in² (Mpa) 360 (2.48) 590 (4.07) 690 (4.75) 880 (6.06) 970 (6.68) 1100 (7.58) 1380 (9.51) 1850 (12.76) 2230 (15.74)
Tensile Strength ISO 37 lb/in² (Mpa) 1000 (6.89) 1420 (9.78) 1700 (11.71) 1800 (12.4) 1710 (11.78) 1980 (13.64) 2200 (15.16) 2800 (19.30) 2900 (20.00)
Elongation at Break ISO 37 % 630 600 590 590 510 480 330 390
Tear Strength ISO 34-1 lb/in (kN/m) 125 (21.9) 190 (33.3) 195 (34.2) 200 (35.0) 215 (37.7) 250 (43.8) 270 (47.3) 320 (56.0) 340 (59.5)
Specific Gravity g/cm³ 1.07 1.07 1.08 1.08 1.09 1.09 1.09 1.09 1.10

Neuthane 803 C26 Series

Neuthane 803ISOD 100 100 100 100 100 100 100 100 100
Neuthane 803POLY C26 by weight 332.0 285.4 254.5 229.7 220.3 199.0 173.9 149.8 125.0
Butanediol 17.23 20.52 21.20 21.82 22.03 22.53 23.11 23.68 24.26
ISO Temperature °C 25 25 25 25 25 25 25 25 25
Polyol Temperature °C 35 35 35 35 35 35 35 35 35
Butanediol Temperature °C 30 30 30 30 30 30 30 30 30
Recommended Mould Temp. °C 70-80 70 -80 70 -80 70 -80 70-80 70 -80 70 -80 70-80 70 -80
Viscosity (ISO @ 25 OC / Curative @ 35OC) cps 50/650 50/650 50/650 50/650 50/650 50/650 50/650 50/650 50/650
Pot life (on a 500g mix) mins 6-8 6-8 5-7 4-6 4-6 3-4 3-4 3-4 3-4
Recommended Cure Temperature °C 90 90 90 90 90 90 90 90 90
Recommended Cure Time hrs 16 16 16 16 16 16 16 16 16
Hardness DIN 2240-91 Shore A 55 60 65 70 75 80 85 90 95
100% Modulus ISO 37 lb/in² (Mpa) 165 (1.14) 270 (1.86) 350 (2.41) 430 (2.69) 500 (3.45) 630 (4.34) 740 (5.10) 1180 (8.14) 1340 (9.24)
300% Modulus ISO 37 lb/in² (Mpa) 360 (2.48) 590 (4.07) 690 (4.75) 880 (6.06) 970 (6.68) 1100 (7.58) 1380 (9.51) 1850 (12.76) 2230 (15.74)
Tensile Strength ISO 37 lb/in² (Mpa) 1000 (6.89) 1420 (9.78) 1700 (11.71) 1800 (12.4) 1710 (11.78) 1980 (13.64) 2200 (15.16) 2800 (19.30) 2900 (20.00)
Elongation at Break ISO 37 % 690 630 600 590 590 510 480 330 390
Tear Strength ISO 34-1 lb/in (kN/m) 125 (21.9) 190 (33.3) 195 (34.2) 200 (35.0) 215 (37.7) 250 (43.8) 270 (47.3) 320 (56.0) 340 (59.5)
Specific Gravity g/cm³ 1.07 1.07 1.08 1.08 1.09 1.09 1.09 1.09 1.10

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.