PPG + MDI

Key feature

● Hardness: 70-95A

● Curing agent: 14BDO

● Good elasticity

● Good hydrolysis resistance

● Good mechanical property

 

Application
Bushes, Castor Wheels, Couplings, Conveyor Rollers, Cutting Boards, Fork-lift Tyres, Gears, Grading Screens, Pneumatic and Oil Seals, Scrapers, Skate Wheels, Wire Guides.
Introduction

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

PPG + MDI

 

CPU-MG-1070

CPU-MG-1080

CPU-MG-1090

CPU-MG-1095

Hardness (Shore A)

70 ± 3

80 ± 2

90 ± 2

95 ± 2

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

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

 

Notice: These values are based on the test of our present laboratory test specimens.