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. @ 25ºC) 200,000

Specific Gravity 1.65

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

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

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

Shelf Life @ 70ºC 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/ºC) 40x10(-6) 45x10(-6)

Heat Distortion Point 110ºC 155ºC

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:

Stir Epoxocast EB-136 thoroughly in its original container until uniform and any settled filler is completely re-incorporated.
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.
Mix curing agent in thoroughly.
De-air (if necessary) at .5cm. Hg. For 10 minutes.
Pour into mold, module or cavity.

Cure Schedule:

Epoxocure 9 – overnight at room temperature.

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