Flexible Polyurethane Elastomers Specifications

This table includes discontinued items and their recommended alternatives.
Go back to the Current Products Only specification table.

                                                              
Mix
Ratio
(by wt.)
Mix
Ratio
(by vol.)
Cast
Thick.
Gel Time
(min.)
@ 72°F
Demold
Time (hr.)
@ 72°F
Shore A
Hardness
Mixed
Viscosity
(cps)
Density
(g/cc)
Volumetric
Yield
(in.3/lb.)
Shrink
(in./in.)
Tensile
Strength
(psi)
Tear
Strength
(ppi)
Elongation
(%)
Tear,
Die C
(pli)
Tear,
Split
(pli)
Color
Freeman Elastomers
Freeman 2035 (Disc. June 2022)
Replaced by Freeman 1035
100:97
1:1
12"
12-14
24
35-40
700-750
1.03
27
700
850
110
23
Tan
RenCast 6410-3 (Disc. June 2022)
Replaced by Freeman 1035
1:1
93:100
4"
26
16
42
1,200
1.04
26.6
0.003
504
85
340
Off White
1:1
1:1
2"
30
16
35
1,500
1.02
27.2
0.001
420
1000
85
Light Brown
Freeman 1040 (Disc. June 2022)
Replaced by Freeman 2040 & 50FX
10:100
9:100
2"
38
24
45-55
1,350
1.04
26.6
0.001
1,257
>146
225
Off White
RenCast 6400-3 (Disc. June 2022)
Replaced by Freeman 2040 & 50FX
10:100
9:100
2"
40
24
52
1,700
1.04
26.6
0.001
1,143
132
251
Off White
1:1
4"
15
16
50
800
1.03
26.6
600
970
117
Orange
1:1
1:1
3”
30
16
50
1,200
1.0
27.5
360
750
74
Translucent Green
1:1
95:100
1/4"
10
6
70A
300
1.06
26.1
<0.003
1,460
400
190
White
RenCast 6401-3 (Disc. June 2022)
Replaced by Freeman 2470
25:100
22:100
1.5"
40
16-24
65
1,200
1.07
25.9
0.0005
1,720
214
270
Off White
39:100
1:3
4"
10-15
24
65-75
660
1.07
25.8
1,370
500
230
41
Translucent White
100:98
1:1
4"
35
24
70
3,500-4,000
1.06
26.2
1,700
700
55
Gray
ISOMold Elastomers
ISOMold CMR-3001 (Discontinued)
1:1
1:1
4”
25-30
16-24
28-32
1,200
1.03
26.9
670
600
100
20
Gray
100:105
1:1
4”
15
24
40
567
1.02
27.2
0.001
600
600
90
18
Green
ISOMold CMR-5001 (Discontinued)
1:1
1:1
4”
15
12-24
48-52
2,000
1.04
26.6
880
530
130
25
Gray
ISOMold UMR-611 (Discontinued)
104:100
1:1
4”
22-24
16
59-63
2,000
1.065
26
800
600
170
35
Light Amber
ISOMold URP-5122 (Discontinued)
Replaced by ISOMold CMR 7001
96:100
1:1
2"
12
24
70-74
2,650
1.06
26.1
0.001
1,568
900
264
Dark Amber
98:100
1:1
2”
30-35
16-24
68-72
2,080
1.03
26.8
1,200
450
220
Gray
ASTM
D-2471
D-2240
D-2393
D-792
D-792
D-2566
D-638
D-624
D-638


*Dependent upon mass and component temperature.

For comparison, you may also want to check out:
    Semi-Rigid Polyurethane Elastomers
    Rigid Polyurethane Elastomers