GelCast 100 is a very low viscosity hydrophobic, polyurethane-encapsulate polymer specifically formulated to create a soft polymer that is especially well suited for encapsulating electrical components.

Features:

  • Extremely Hydrophobic
  • Rapid Set
  • Low Viscosity
  • Low Durometer
  • Translucent
  • High Tack

Properties

Working Properties

Mix Ratio By Weight

91 parts A/ 100 part B

Mix Ratio By Volume

100 parts A/ 100 parts B

Viscosity @ 72°F (A Side)

2,300 CPS

Viscosity @ 72°F (B Side)

305 CPS

Viscosity @ 72°F (Mixed)

1,300 CPS

Color

A-side:

Clear

Color

B-side:

Clear

Color

Mixed:

Clear

Working Life @ 72°F

9-11 minutes

Complete Cure* @ 72°F

24 hours

*Cure time depends on temperature and relative humidity.

 

Physical Properties

Specific Gravity: (Part A)

0.89

Specific Gravity: (Part B)

0.98

Specific Gravity: (Mixed)

0.93

Weight/Gallon Part A

7.41 lbs.

Weight/Gallon Part B

8.15 lbs.

Weight/Gallon Mixed

7.78 lbs.

Cubic inch per lb. of product

29.69 in3

Hardness @ 72° F

30-40 Humboldt Penetrometer

 

GelCast 100 is fully cured in 24 hrs. at 72°F. Cooler curing temperatures will lengthen cure times, warmer temperatures will reduce working and cure times. Cure temperature should be between 65˚F and 100˚F for producing the best polymer.

 

Clean Up

Dispose of all empty GelCast 100 component containers in accordance with local, state and federal regulations. Empty component containers can be rendered non-hazardous by rinsing the containers with a small amount of mixed material and allowing the solvents to evaporate. The containers will then contain non-hazardous cured urethane.

Storage and Shelf Life

The liquid components for GelCast 100 should be stored above freezing (50˚F and 100˚F) for best results and in an 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.

Shipping

Shipping Class: Class 55 Non-hazardous