Polyester T80 Based Casting Polyurethane Prepolymer

HJ-3875

HJ-3880

HJ-3885

HJ-3890

NCO% Content

2.6±0.2

3.0±0.2

3.5±0.2

4.3±0.2

Density25℃/(g/cm³)

1.23

1.23

1.23

1.23

Viscosity80℃/mpa·s

1800-2200

1700-2100

1500-1800

1200-1600

Appearance at 25℃

White solid

MixTemperature℃

Prepolymer /Moca

85℃/115℃

85℃/115℃

85℃/115℃

80℃/115℃

Gel Time /min

8-10

4-7

4-7

2-4

Vulcanization Time (h)

25-16

25-16

25-16

25-16

Physical Properties

Hardness (Shore A)

75±2

80±2

85±2

90±2

Tensile Strength (Mpa)

30-37

38-45

42-48

45-50

100% Modulus (Mpa)

9-10

9-10

10-11

10-12

300% Modulus (Mpa)

14-15

14-15

15-17

17-20

Elongation at Break (%)

650-720

630-700

610-680

600-660

Tear Strength (KN/m)

60-70

75-82

82-95

100-115

Compression permanent deformation %

6-8

8-10

6-10

8-10

DIN Abrasion loss（mm³）

≤55

≤50

≤48

≤45

Resilience %/25℃

24-26

23-25

20-23

18-22

Product application : Rod and bar, Sheet and plate, caster, drag roller, classification screen, coupling, Oil-pipe cleaner, sealing ring, cyclone, scraper and other products.

Operation details:

After vacuum degasing at 80-85 ℃, the prepolymer is mixed with melted MOCA for casting and vulcanization. It is suitable for manual and mechanical operation.

Storage:

Store in a cool and dry place and use up as soon as possible after opening; If it cannot be used up at one time, it shall be sealed with nitrogen; The second opening needs to be used for defoaming, and the original storage period is six months.

packing:

20kg or 200kgiron drum

HJ-3832

HJ-3842

HJ-3893

HJ-3895

NCO% Content

3.2±0.2

4.2±0.2

4.7±0.2

5.0±0.2

Density25℃/(g/cm³)

1.23

1.23

1.23

1.23

Viscosity80℃/mpa·s

1600-1800

1500-1700

1000-1200

900-1100

Appearance at 25℃

White solid

MixTemperature℃

Prepolymer /Moca

85°C/115°C

80°C/115°C

80°C/115°C

75°C/115°C

Gel Time /min

4-6

3-5

2-3

2-3

Vulcanization Time (h)

25-16

25-16

25-16

25-16

Physical Properties

Hardness (Shore A)

82±2

90±2

93±2

95±2

Tensile Strength (Mpa)

38-43

40-45

45-49

45-50

100% Modulus (Mpa)

10-11

10-12

8-10

8-10

300% Modulus (Mpa)

14-15

15-16

16-18

16-18

Elongation at Break (%)

650-750

580-700

570-680

550-680

Tear Strength (KN/m)

80-90

85-95

110-130

115-135

Compression permanent deformation %

4-6

4-6

2-4

2-4

DIN Abrasion loss（mm³）

≤55

≤50

≤45

≤45

Resilience %/25℃

22-25

20-23

18-22

16-18

Product application scope: Rod and bar, Sheet and plate, caster, drag roller, classification screen, coupling, Oil-pipe cleaner, sealing ring, cyclone, scraper and other products.

Operation details:

After vacuum degasing at 80-85 ℃, the prepolymer is mixed with melted MOCA for casting and vulcanization. It is suitable for manual and mechanical operation.

Storage:

Store in a cool and dry place and use up as soon as possible after opening; If it cannot be used up at one time, it shall be sealed with nitrogen; The second opening needs to be used for defoaming, and the original storage period is six months.

packing:

20kg or 200kgiron drum