Urethane Foam Boards Specifications


Note: All product titles link to the respective product pages.

 
Hardness
Shore D
Density
g/cc
Density
lb./ft.3
Tensile
Strength
(psi)
Compressive
Strength
(psi)
Compressive
Modulus
Elasticity (psi)
Flexural
Strength
(psi)
Flexural
Modulus
(psi)
Glass
Transition
Temp (°F)
Coefficient
Thermal
Expansion
(in./in./°F)
Max
Operating
Temp (°F)
Color
Foam Boards
–
0.032
2
–
22
–
–
–
–
–
200
Gray
-
0.035
2.2
68.2
39.2
–
–
–
–
–
212
Lt. Yellow
-
0.04
2.5
84.1
50.8
–
–
–
–
–
212
Lt. Green
CORAFOAM® U40 (formerly RenShape 5014)
-
0.064
4
105
95
–
116
–
–
33.0 x 10-6
195
Caramel
CORAFOAM® U60 (formerly RenShape 5015)
-
0.09
6
160
148
–
190
–
–
27.75 x 10-6
176
Green
CORAFOAM® U80 (formerly RenShape 5018)
–
0.13
8
290
230
–
310
–
–
28.0 x 10-6
176
Lt. Yellow
CORAFOAM® U100 (formerly RenShape 5020)
27
0.16
10
350
280
–
350
–
–
28.0 x 10-6
176
Lt. Gray
CORAFOAM® U150 (formerly RenShape 5025)
25
0.24
15
623
638
–
928
–
–
27.75 x 10-6
176
Green
CORAFOAM® U200 (formerly RenShape 5030)
35
0.32
20
928
1,044
–
1,450
–
–
24.98 x 10-6
176
Peach
CORAFOAM® U280 (formerly RenShape 5035)
48
0.45
28
1,523
2,233
–
2,988
–
–
25.0 x 10-6
176
Peach
CORAFOAM® U310 (formerly RenShape 5045)
52
0.48
31
1,250
2,200
–
2,400
–
–
25.0 x 10-6
176
Brown
ASTM
D-2240
D-792
D-792
D-638
D-695
D-695
D-790
D-790
D-4065
D-3386
–
–


Applications

 = Ideal      = Acceptable      = Not recommended

Application
CNC Proofing
Models (Architectural, styling, temporary)
Low-density Substructure
Tooling Aids & Fixtures
Intermediate-Temp Master & Lay-up Tools
High-temp master & lay-up tools
Foundry Patterns
Vacuum-Form Molds
Metalforming Tools


Machining Specifications

 
Roughing
Speed
(RPM)
Roughing
Feed
(IPM)
Finishing
Speed
(RPM)
Finishing
Feed
(IPM)
CORAFOAM® Prop Foam 2,500 200 15,000 200
CORAFOAM® HPT-35 2,500 200 15,000 200
CORAFOAM® HPT-40 2,500 200 15,000 200
CORAFOAM® U40 2,500 200 15,000 200
CORAFOAM® U60 2,500 200 15,000 200
CORAFOAM® U80 2,500 200 15,000 200
CORAFOAM® U100 2,500 200 15,000 200
CORAFOAM® U150 2,500 200 15,000 200
CORAFOAM® U200 2,500 200 15,000 200
CORAFOAM® U280 2,500 200 15,000 100
CORAFOAM® U310 2,500 200 15,000 100

Cutters
Roughing: 1” Ball End mill, 4-Flute, Carbide
Finishing: 5/8” Ball End mill, 2-Flute, Carbide

Depth
Roughing: Varied from 1/4” to 2-1/2” deep with 40% stepover
Finishing: 1/8” deep leaving 0.002” scallop height
Please note: These machining parameters are starting points. Cutter type, material, spindle speed, feed rate, machine power, and rigidity all affect machining results. User must determine best parameters for specific applications.


Matched Adhesives

 
Notes
Adhesives
X
X
X
X
X
X
X
X
X
Low-density polyurethane with good bond strength
X
X
X
X
X
X
X
X
X
Low-density polyurethane with good bond strength
X
X
X
X
X
X
X
X
X
Single-part urethane adhesive for foam and modeling boards. Will also bond polystyrene, phenolic, metals, fiberglass laminates, wood and concrete.
Repair Materials
X
X
X
X
X
X
X
X
X
Easy to machine polyester repair paste
 
 
Mix Ratio
by weight
Viscosity
(cps)
Gel Time
@ 77°F (min)
Light Handling
Time (hr)
Hardness
(Shore D)
Density
Service
Temp.
Color
Adhesives
1:1
1,200
10-11
4
55
0.59
128°F
Tan
1:1
1,500
6-8
4
68
0.9
132°F
Brown
‐
3,000
30-35
2-3
‐
1.10
‐
Amber
Repair Materials
100:1.5
581,000
10
0.5
71
1.14
128°F
4 options