Elastomers - Era Polymers

Polyester MDI – 4 Component (Quasi) Systems
High Performance
Erapol Prepolymer EME215N-55A EME215N-60A EME215N-65A EME215N-70A EME215N-75A EME215N-80A EME215N-85A EME215N-90A EME215N-95A
EME215N – IsocyANATE Prepolymer
Specific Gravity at 25°C 1.16 1.16 1.16 1.16 1.16 1.16 1.16 1.16 1.16
Colour clear/yellowish clear/yellowish clear/yellowish clear/yellowish clear/yellowish clear/yellowish clear/yellowish clear/yellowish clear/yellowish
EME215N – Polyol Curative
Specific Gravity at 25°C 1.20 1.20 1.20 1.20 1.20 1.20 1.20 1.20 1.20
Colour white white white white white white white white white
1, 4 Butane Diol (1, 4 BDO)
Specific Gravity at 25°C 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Colour clear clear clear clear clear clear clear clear clear
Processing Information
EME215N – Isocyanate Level 100 100 100 100 100 100 100 100 100
EME215N – Polyol / 1, 4 BDO Level 190 / 6.0 143 / 8.2 127 / 8.9 79 / 11.2 63 / 12 47 / 12.7 31.7 / 13.4 90 / 15.3 75 / 16.4
Eracat MF – Catalyst by Weight (ppw) 0.63 0.51 0.49 0.46 0.34 0.31 0.27 0.053 0.05
Recommended % Theory 95 95 95 95 95 95 95 95 95
EME215N – Isocyanate Temp (°C) 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50
EME215N – Polyol Temp (°C) 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50 40 – 50
1, 4 Butane Diol Temp (°C) 25 – 35 25 – 35 25 – 35 25 – 35 25 – 35 25 – 35 25 – 35 25 – 35 25 – 35
Mould Temp (°C) 90 – 100 90 – 100 90 – 100 90 – 100 90 – 100 90 – 100 80 – 100 80 – 100 80 – 100
Oven Temp (°C) 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100
Pot Life (minutes) 6 – 9 6 – 9 6 – 9 6 – 9 6 – 9 6 – 9 5 – 8 4 – 6 3 – 5
Demould at 90 -100°C (minutes) 60 45 45 30 30 30 30 30 30
Post Cure at 90 -100°C (hours) 16 16 16 16 16 16 16 16 16
PhySICAL Properties
Hardness (Shore A) 55 ± 3 60 ± 3 65 ± 3 70 ± 3 75 ± 3 80 ± 3 85 ± 3 90 ± 3 95 ± 3
Tensile Strength / MPa (psi) 28 (4061) 31 (4496) 37 (5366) 38 (5511) 40 (5802) 41 (5947) 46 (6672) 39 (5656) 37 (5366)
100% Modulus / MPa (psi) 2.6 (377) 3.4 (493) 3.5 (508) 4.7 (682) 6.7 (972) 6.8 (986) 8.7 (1262 11.5 (1668) 14.4 (2089)
200% Modulus / MPa (psi) 3.1 (450) 5.0 (725) 5.4 (783) 7.6 (1102) 9.9 (1436) 10.2 (1479) 13.7 (1987) 16.7 (2422) 19.1 (2770)
Angle Tear Strength, Die C (kN/m) 38 55 55 62 78 84 101 103 116
Trouser Tear Strength (kN/m) 17 19 19 22 27 41 41 40 42
Elongation (%) 675 590 580 520 540 595 510 500 480
DIN Resilience (%) 57 57 55 52 49 47 43 42 42
DIN Abrasion Resistance (mm³) 56 27 27 29 31 34 35 45 60
Cured Density 1.17 1.21 1.21 1.21 1.22 1.22 1.23 1.23 1.23
*The information presented here is based on laboratory testing.
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