Casting PU Elastomer

Casting PU Elastomer.
1.CPU-325L:Hardness-70D /PTMG
2.CPU-167L:Hardness-95A /PTMG
3.CPU-100L:Hardness-90A /PTMG
PTMG + TDICasting PU Elastomer
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 polyolhardener. The molding process is composed of pre-heating, degassing, maxing with a hardener, pouring into the mold, curing, demolding and after curing.

CPU - 42L
CPU - 100L
CPU - 167L
CPU - 325L
NCO Content (%)
2.9 ± 0.2
4.2 ± 0.1
6.3 ± 0.1
9.1 ± 0.1
(CPS/40
o
C ) Viscosity
45,000- 65,000
10,000- 30,000
6,000- 12,000
10,000- 25,000
PHR of MOCA (%)
8.3
12.5
18.2
26.3
Working Temperature (Prepolymer) (
o
C)
100
100
85
85
MOCA Temp.
110
110
110
110
Mold Temp. (
o
C)
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/cm
2
)
290-430
300-450
350-500
350-500
Elongation (%)
545-645
400-500
350-450
250-350
Tear Strength (kg/cm)
65-105
80-120
120-160
210-260
Casting PU Elastomer