Overnight Cure Flexible Urethane Specifications

View the Freeman Polyurethane Elastomers brochure (pdf)
View the RenCast Urethane Specifications (pdf)
View the Por-A-Mold Urethane Specifications (pdf)

 

Mix Ratio
(by wt.) 
Resin:
Hardener

Mix Ratio 
(by vol.) 
Resin:
Hardener

Gel Time 
(min.) 
@ 72°F

Demold 
Time 
(hours) 
@ 72°F

Hardness 
(Shore A)

Mixed Viscosity (cps)

Density
(g/cc)

Volumetric Yield 
(cu. in. / lb.)

Shrink
(in / in)

Tensile Strength (psi)

Tear
Strength
(ppi)

Elongation (%)

Tear, 
Die C
(PLI)

Tear, 
Split 
(PLI)

Color

Freeman 1035

1:1

1:1

30

16

35

1,500

1.02

27.2

0.001

420

-
1000
85
-
Lt.Brown

Freeman 1040

10:100

9:100

38

24

45-55

1,350

1.04

26.6

0.001

1,257

146
225
-
-
Off-White

RenCast 6400-1 / Ren 6400-2

10:100

9:100

40

24

52

1,700

1.04

26.6

0.001

1,143

132

251

-
-

Off-White

RenCast 6401-1 / Ren 6401-2

25:100

22:100

40

16-24

65

1,200

1.07

25.9

0.0005

1,720

214

270

-
-

Off-White

RenCast 6410-1 / Ren 6410-2

1:1

93:100

26

16

37

1,200

1.04

26.6

0.003

504

85

340

-
-

Off-White

ISOMold CMR-301
1:1
1:1
25-30
16
29
1,025
1.02
27.2
0.001
907
-
1000
108
24
Gray
ISOMold UMR-411
100:105
1:1
15
24
40
567
1.02
27.2
0.001
600
-
600
90
18
Green
ISOMold UMR-611 (formerly HRS-5132)
104:100
1:1
22-24
16
59-63
800
600
170
35
Light Amber

ISOMold URP-4106

100:89

1:1

20

16

35

1,500

1.11

24.9

0.001

400

-

450

78.00

9

Blue

ISOMold CMR 501
1:1
1:1
20
16
50
2,200
1.03
26.9
0.001
1,200
155
450
147
20
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.