Epoxocast EB 136

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General Purpose Epoxy Casting Compound.

 

Description:

Epoxocast EB-136 is an easy-to-use, epoxy potting/casting compound displaying excellent adhesion to metals, ceramics and most plastics. When properly cured with Epoxocure 11, Epoxocast EB-136 will conform to the requirements of MIL-I-16923, Types B,C and D.

Properties - Uncured:-                                             Epoxocast EB136    Epoxocure 9    Epoxocure 11

Color, visual                                                               Black

Viscosity ASTM-D-2393 (c.p.s. @ 25C)               200,000

Specific Gravity                                                         1.65

Mix Ratio (weight)                                                     ---                                100: 6-7            100: 9-10

Mixed Viscosity ASTM-D-2393 (c.p.s. @ 25C)    ---                                25,500 cps       60,000 cps

Pot Life @ 25C (100 grams)                                  ---                                30 mins             5 Hours

Shelf Life @ 70C                                                     12 months

Properties - Cured:-

Physical:

Hardness, ASTM-D-2240 (Durometer)                                                      Shore D 87      Shore D 89

Tensile Strength, ASTM-D-638                                                                   9,000 psi          9,500 psi

Tensile Elongation, ASTM-D-638                                                               2%                     3%

Compressive Strength, ASTM-D-695                                                         15,000 psi        16,000

Flexural Strength, ASTM-D-790                                                                  15,000 psi        15,000 psi

Coefficient of Thermal Expansion (cm/cm/C)                                           40x10(-6)          45x10(-6)

Heat Distortion Point                                                                                     110C                155C

Electrical:

Dielectric Strength, ASTM-D-149 (volts/mil)                                              440                    450

Dielectric Constant, ASTM-D-150                                                               4.8                     4.8

Dissipation Factor, ASTM-D-150                                                                0.02                   0.02

Volume Resistivity, ASTM-D-257 (ohm-cm)                                              5x10(15)           5x10(15)

Thermal Conductivity                                                                                    4.7 BTU             4.6 BTU

Mixing Instructions:

  1. Stir Epoxocast EB-136 thoroughly in its original container until uniform and any settled filler is completely re-incorporated.

  2. Weigh out required amount of Epoxocast EB-136 and weigh into it 6-7 parts Epoxocure 9 per 100 parts Epoxocast EB-124; or 9-10 parts Epoxocure 11 per 100 parts Epoxocast EB-136.

  3. Mix curing agent in thoroughly.

  4. De-air (if necessary) at .5cm. Hg. For 10 minutes.

  5. Pour into mold, module or cavity.

 

Cure Schedule:

Epoxocure 9 overnight at room temperature.

Epoxocure 11 2 to 3 hours at 100C, 4 to 6 hours at 80C or 12-16 hours at 60C.

 

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