Intermediate Cure Urethane 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.)
Gel Time
(min.)
@ 72°F
Demold
Time (hr.)
@ 72°F
Cast
Thick.
Hardness 
(Shore A)
Viscosity
(R/H or
Mixed (cps)
Density
(g/cc)
Volumetric
Yield
(in.3/lb.)
Shrink
(in./in.)
Compressive
Strength
(psi)
Flexural
Strength
(psi)
Flexural
Modulus
(psi)
Tensile
Strength
(psi)
Deflection
Temp (°F)
Izod
Impact
(ft.lb./in.)
Tg per
DMA (°F)
Cured
Color
RenCast 6486 (Disc. June 2022)
No direct alternative
100:50
1:1
7-8
8 hr.
1/8"
67
7,800/75
1.16
23.9
4,750
110,000
3,600
156
6.6
156
Amber
Freeman 1085 (Disc. June 2022)
Replaced by Freeman 1085HS
1:1
1:1
6
30-120
min.
3"
69
80
1.12
24.7
0.002
4,880
5,600
170,000
3,300
137
0.35
172
Beige
1:1
1:1
7
30 min.
3"
70
90
1.05
26.6
0.003
4,500
235,000
4,500
3.0
White
RenCast 6497 (Disc. June 2022)
No direct alternative
1:1
4-5
2 hr.
1/8"
70
1,875
1.1
25.2
995
Light Amber
100:92
1:1
3
15-30
min.
1/2"
70
80
1.05
26.6
0.010
3,650
4,500
132,000
3,000
140
Off White
115:100
1:1
20
2-4 hr.
1/2"
80
150
1.12
24.7
0.003
8,300
9,500
288,000
6,650
134
0.31
White
1:1
1:1
20
2-4 hr.
3"
75
190
1.09
25.4
0.001
9,000
5,400
140
1.32
White
ASTM
D-2471
D-2240
D-2393
D-792
D-792
D-2566
D-695
D-790
D-638
D-790
D-648
D-256
D-4065

 

*Deflection Temperature is the temperature when a 1/2" x 1/2" x 5" bar (supported at both ends) deflects 0.010 of an inch under a 66 psi fiber stress. The maximum service temperature may be far above this value depending on the application and the stress of the plastic at high temperature.

For comparison, you may also want to check out:
    Rapid Cure Urethane Elastomers
    Overnight Cure Urethane Elastomers - Flexible
    Overnight Cure Urethane Elastomers - Semi-Rigid
    Overnight Cure Urethane Elastomers - Rigid