ProtoCast 100 is a low viscosity, rapid setting, and rigid urethane compound with high strength and durometer. This system will cure quickly to a hard, tough impact resistant casting. ProtoCast 100 is non-sensitive to moisture after cure and will readily bond to itself, as stage pours are required. The 1:1, by volume, mix ratio makes for easy hand or machine mix. ProtoCast 100 is recommended in applications where a “thermoplastic feel” is desired.

Properties

Working Properties

Mix Ratio By Weight

100 parts A/ 84 part B

Mix Ratio By Volume

100 parts A/ 100 parts B

Viscosity @ 72°F (A Side)

400 CPS

Viscosity @ 72°F (B Side)

800 CPS

Viscosity @ 72°F (Mixed)

500 CPS

Color

Mixed:

Light Cream

Working Life @ 72°F

5 minutes

Demold Time* @72°F

30-45 minutes

* Set time and Demold time depends on temperature and relative humidity.

 

Physical Properties

Specific Gravity (Part A)

1.19

Specific Gravity (Part B)

1.01

Specific Gravity (Mixed)

1.10

Weight/Gallon Part A

9.94 lbs.

Weight/Gallon Part B

8.38 lbs.

Weight/Gallon Mixed

9.17 lbs.

Cubic inch per lb. of product

25.2 in3/lb.

Hardness @ 72° F

ASTM 2240

70 Shore D

Tensile Strength

ASTM D-638

5600 psi

Elongation

ASTM D-638

3.5%

Impact Strength

ASTM D-256

1.5 ft. lb/in

Linear Shrinkage

ASTM D-2566

.0029 in/in

Deflection Temperature

ASTM D-758

135°F

Compression

ASTM D-695

3985

Thermal coefficient of expansion (on/in/F)

ASTM D-696

13.2X10

Machinability

 

Excellent

 

Storage and Shelf Life

ProtoCast 100 is shipped from the factory in sealed containers. The containers should be stored in a cool, dry area that is protected from direct sunlight and moisture. Storage temperatures should not exceed 80° F. The shelf life of factory sealed containers stored under these conditions is six months. Containers that have been opened should be resealed immediately after material has been removed in order to prevent solvent evaporation.

Packaging

ProtoCast 100 is available in convenient 2-quart, 2-gallon, 10-gallon and 100-gallon kits.

Shipping

Shipping Class: Class 55 Non-hazardous