* PTMG + TDI

* PTMG + MDI

* PPG + TDI

* PPG + MDI

* POLYESTER + TDI

* POLYESTER + MDI


PU CASTING ELASTOMER PREPOLYMER

Introduction

"PU Casting Elastomer" urethane elastomer can be cured by reacting with a polyamine or a polyolhardener. The molding process is composed of pre-heating, degassing, maxing with a hardener, pouring into the mold, curing, demolding and after curing.

PTMG + TDI
  CPU - 42L CPU - 100L CPU - 167L CPU - 325L
NCO Content (%) 2.8 ± 0.2 4.2 ± 0.2 6.3 ± 0.2 9.1 ± 0.2
(CPS/40oC )
Viscosity		 45,000-
65,000		 10,000-
30,000		 6,000-
12,000		 10,000-
25,000
PHR of MOCA
MOCA (%) 		8.3 12.5 18.2 26.3
Working Temperature
(Prepolymer) (oC)		 100 100 85 85
MOCA Temp. 110 110 110 110
Mold Temp. (oC) 100 100 100 100
Pot-Life (Min) 12 11 6 2.5
Hardness A 80 ± 2
 90 ± 2
 95 ± 2
 70 ± 2D
Tensile Strength
(kg/cm2)		 290-430 290-440 340-490 340-490
Elongation (%) 545-645 395-495 345-445 245-345
Tear Strength
(kg/cm)		 65-105 75-115 115-155 205-255
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PTMG + MDI
  CPU-MT-1070 CPU-MT-1080 CPU-MT-1090 CPU-MT-1095
NCO Content (%) 5.8 ± 0.2 6.5 ± 0.2 8.9 ± 0.2 9.3 ± 0.2
Viscosity, Poise(100oC) - - - -
1.4 Butane Diol, (pph) 5.95 6.60 9.05 9.40
Working Temperature
(Prepolymer) (oC)		 80 80 80 80
Pot-Life (Min) 5 4 3.5 3.0
HardnessA 70 ± 3 80 ± 2 90 ± 2 95 ± 2
Tensile Strength (psi) 2700-3400 2900-3800 4200-5000 6300-7900
Elongation (%) 790-930 660-860 590-790 530-690
Tear Strength (pli) 330-400 400-470 550-630 410-470
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PPG + TDI
  CPU - 1060 CPU - 2079 CPU - 1090C CPU - 2095 CPU - 2172
NCO Content (%) 2.3 ± 0.1 3.8 ± 0.2 4.3 ± 0.2 5.8 ± 0.2 8.0 ± 0.2
(CPS/40oC )
Viscosity		 1,500-
4,000		 9,000-
14,000		 15,000-
25,000		 8,000-
15,000		 25,000-
40,000
PHR of MOCA
MOCA (%) 		7 11 12.5 16.7 23.1
Working Temperature
(Prepolymer) (oC)		 100 100 85 85 85
MOCA Temp. 110 110 110 110 110
Mold Temp. (oC) 100 100 100 100 100
Pot-Life (Min) 30 11 10 5 2.5
Hardness A 60 ± 5 80 ± 2 90± 2 95 ± 2 66 ± 5D
Tensile Strength (kg/cm2) 30-70 175-275 195-295 195-345 245-345
Elongation (%) 400-500 510-660 510-610 360-460 160-310
Tear Strength
(kg/cm)		 20-60 75-115 85-125 115-155 155-215

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PPG + MDI
  CPU-MG-1070 CPU-MG-1080 CPU-MG-1090 CPU-MG-1095
NCO Content (%) 5.8 ± 0.2 6.5 ± 0.2 8.9 ± 0.2 9.2 ± 0.2
Viscosity, Poise(100oC) - - - -
1.4 Butane Diol, (pph) 5.80 6.61 9.16 9.41
Working Temperature
(Prepolymer) (oC)		 80 80 80 80
Pot-Life (Min) 5 4.5 4 3-5
Hardness A 70 ± 3 80 ± 2 90 ± 2 95 ± 2
Tensile Strength (psi) 2100-2600 2200-2900 3200-3800 4800-6000
Elongation (%) 600-700 500-650 450-600 400-520
Tear Strength (pli) 250-300 300-355 410-470 305-350
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POLYESTER + TDI
  CPU-PS-70A CPU-PS-80A CPU-PS-90A CPU-PS-92A CPU-PS-97A
NCO Content (%) 2.33~2.47 3.23~3.5 3.92~4.33 4.08~4.33 4.81~5.22
  Viscosity
(CPS/80oC ) 		4,500~5,500 2,200~3,600 1,900~3,100 1,300~2,300 1,200~2,500
Specific Gravity 1.13 1.14 1.15 1.15 1.7
PHR of MOCA
MOCA (%) 		7.2~7.9 9.2~10.0 11.2~12.4 11.7~12.4 13.8~15.0
Pot-Life (Min) 6 5 4 4 3.5
Curing Temp. (oC) 110 110 110 110 110
Demould: Post Cure
(Hour)		 1:8 1:8 1:8 1:8 1:8
Hardness A 70 ± 3 80 ± 3 90 ± 3 92 ± 3 97 ± 3
100% Modulus
(kgf/cm2) 		20 29 60 68 95
300% Modulus (kgf/cm2) 31 49 117 171 177
Tensile Strength
(kgf/cm2)		 385 432 495 603 558
Elongation (%) 612 560 495 477 423
Tear Strength
(kgf/cm)		 41 56 99 99 108
Compression Set (%) 26 23 27 29 33
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POLYESTER + MDI
  CPU-MS-1070 CPU-MS-1080 CPU-MS-1090 CPU-MS-1095
NCO Content (%) 5.7± 0.2 6.4 ± 0.2 9.0 ± 0.2 9.3 ± 0.2
Viscosity, Poise(100oC) - - - -
1.4 Butane Diol, (pph) 5.81 6.53 9.10 9.45
Working Temperature
(Prepolymer) (oC)		 100 100 100 100
Pot-Life (Min) 4.5 4.0 3.8 3.0
Hardness A 70 ± 3 80 ± 2 90 ± 2 95 ± 2
Tensile Strength (psi) 2900-3600 3100-4100 4600-5500 7100-8800
Elongation (%) 870-1010 740-960 650-870 560-730
Tear Strength (pli) 360-440 440-520 580-670 430-500
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Notice: These values are based on the test of our present laboratory test specimens