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Polyester Base Polyurethane Prepolymer for cast elastomer

Polyester Base Polyurethane Prepolymer for cast elastomer
group name
Casting PU
Min Order
1 piece
model
H2321,H2330,H2336,H2342,H2345,H2348
update time
Mon, 31 Dec 2007 13:05:24 GMT

Paramtents

  • Appearance light yellow tranparent liquid

Packging & Delivery

  • Min Order1 piece

Briefing

Polyurethane Prepolymer:
1. to make rods,
2.industrial wheels,
3.industrial rolls,
4.sealing rings

Detailed


Polyurethane Prepolymer:
1. to make rods,
2.industrial wheels,
3.industrial rolls,
4.sealing rings ,screen plates etc.

Polyurethane prepolymer:It applies to make rods, wheels, sealing rings ,screen plates and other polyurethane elastomer wares.

Polyester Base Polyurethane Prepolymer for cast elastomer

 

      Application  It applies to make rods, wheels, sealing rings ,screen plates and other polyurethane elastomer wares.

        Characteristics  The wares has good abrasive resistance, oil resistance and excellent mechanical property, changing colors by adding colorant.

        Operating point  After the prepolymer vacuum degassing in 80-85, blending with melted MOCA, degassing, pouring,  sulfuration molding, applying to manual operation and machine mixing.

       Storage  Storing in a cool and dry place. If you cant use it up at a time, filling nitrogen and then sealing it. The storage time of original binding is 6 month.

       Packing  20kg or 200kg galvanized iron drum

Type

H2321

H2330

H2336

H2342

H2345

H2348

Appearance

Light yellow viscous liquid, long time storing in low temperature is solid

MOCA

(g/100 prepolymer)

6

8.6

10.5

12.5

12.9

14

Mixing temperature

Prepolymer/MOCA

90/120

85/120

80/120

80/120

80/120

75/120

Gel time min

9

8

4

4

3

3

Demould time (h/100)

1

1

1

1

1

1

Post vulcanizing time (h/100)

10

10

10

10

10

10

                                  Ware property

Rigidity shore A

71±2

80±2

85±2

90±2

92

95±2

Tensile strength MPa

40

40

45

45

45

43

Elongation at break %

750

760

600

600

600

600

Tear strength KN/m

50

80

95

100

100

103

Rebound %

35

39

20

20

29

25

Density

                   1.25

 

PES 

 

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