Overnight Cure Semi-Rigid Urethane Elastomers

View the Freeman Polyurethane Elastomers brochure (pdf)
View the RenCast Polyurethane Elastomers Specifications (pdf)

 

Mix Ratio
(by wt.) 
Resin:
Hardener

Mix Ratio 
(by vol.) 
Resin:
Hardener

Gel Time 
(min.) 
@ 72°F

Demold Time 
(hours) 
@ 72°F

Shore
Hardness

Mixed Viscosity (cps)

Density
(g/cc)

Volumetric Yield 
(cu. in. / lb.)

Shrink
(in / in)

Tensile Strength (psi)

Tear
Strength 
(ppi)
Elongation
(%)
Color

Freeman 1050

1:1

100:94

26

16

85A

1,650

1.10

25.2

0.001

2,050

280
510
Lt. Amber

Freeman 1060

100:60

100:60

28

16

60D

2,600

1.05

26.4

0.001

3,200

510
300
Red, Black

Freeman 1066

100:50

100:50

15-17

2-4

65D

3,200

1.03

26.9

0.003

3,100

630
140
Red, Black

RenCast 6402-1 / Ren 6402-2

35:100

31:100

20

24

82A

900

1.08

25.6

0.001

1,800

249

280

Off White

RenCast 6403-1

50:100

44:100

15

24

92A

800

1.1

25.2

0.001

2,500

470

240

Off White

RenCast 6442

1:1

100:94

28

24

85A

1,600

1.09

25.4

0.001

2,100

290

525

Lt. Amber

RenCast 6443

100:60

100:60

18

24

95A

2,450

1.06

26.1

0.001

3,500

375

475

Lt. Amber

RenCast 6444

100:60

100:60

27

24

60D

2,500

1.05

26.4

0.001

3,400

550

325

Lt. Amber

RenCast TDT-178-88/Ren 6444

100:60

100:60

27

24

60D

2,500

1.05

26.4

0.001

3,400

550

325

Red

ISOMold UMR 701

96:100

100:100

15

16

70A

2,650

1.07

25.9

0.001

1,468

264

900

Dark Amber

ASTM

-

-

D-2471

-

D-2240

D-2393

D-792

D-792

D-2566

D-638

D-624

D-638