Thumbnail Filmstrip of Encapsulating and Potting Epoxy Compound (Black),3 litres (0.8 gallons) liquid Images
The 832B Black Epoxy Encapsulating and Potting Compound is an electric grade epoxy. It is simple to mix and easy to use. This two parts black epoxy provides great insulation and protection value.
It protects against static discharges, shocks, vibrations, and mechanical impacts. It insulates against heat and conductivity. It is extremely resistant to environmental humidity, salt water, and many harsh chemicals.
Applications & Usages
The 832B epoxy is used to pot or encapsulate printed circuit assemblies in protective blocks. The cured epoxy improves reliability, operational range, and lengthens the life of electrical and electronic parts. It
also helps hide and restrict access to proprietary design elements.
Its primary applications are in the automobile, marine, aerospace, aviation, communication, instrumentation, and industrial control equipment.
| Features |
|
| Catalog Number | Sizes Available | Description |
|---|---|---|
| 832B-375ML | 375 mL (12.6 fl oz) | Bottle |
| 832B-3L | 2.55 L (0.68 gal) | Can |
| 832B-12L | 10.8 L (2.88 gal) | Pail |
| 832B-60L | 60 L (16 gal) | Pail |
Features
- Non-porous, water and chemical resistant
- Extremely impact resistant (contains a form of nylon)
- Colored black, to prevent visual inspection
- Affords high security, once cured, extremely difficult to remove
- Non-conductive, an electrical insulator
- Low toxicity
- Easy and simple to mix
- Long pot life
- Can be cured in one hour at 65°C (150°F)
- This product is RoHS compliant
- Format: Liquid, 2.55 L (2.7 qt)
Specifications
| Curing & Work Schedule | ||
|---|---|---|
| Working Life | 60 minutes | |
| Shelf Life | ≥3 year | |
| Full Cure | at 20°C [68°F] | 24 hour |
| at 65°C [149°F] | 60 minutes | |
| at 80°C [176°F] | 45 minutes | |
| at 100°C [212°F] | 35 minutes | |
| Storage Temperature of Unmixed Parts | 16 to 27°C [60 to 80°F] | |
| Curing & Work Schedule | ||
| Constant Service Temp. | -30°C to 140°C [-22 to 284°F] | |
| Service Temperature | <-30 | +145 °C [<-22 | +294 °F] | |
| Cured Properties - Physical | Test Method | |
| Color | Visual | Black |
| Density (at 26°C) | ASTM D 792 | 1.12 g/cm3 |
| Hardness | (Shore D durometer) | 80D to 82D |
| Tensile Strength | ASTM D 638 | 56.9 N/mm2 [8,250 lb/in2] |
| Elongation | ASTM D 638 | 3.3% |
| Lap Shear Strength | ASTM D 1002 | 4.2 N/mm2 [606lb/in2] |
| Izod Impact | ASTM D 256 | 0.932 kJ/m2 [0.443 ft·lb/in] |
| Compression Strength | ASTM D 695 | 155 N/mm2 [22,400lb/in2] |
| Modulus | ASTM D 695 | 2,590 N/mm2 [375,000 lb/in2] |
| Flexural Strength | ASTM D 790 | 113.76 N/mm2 [16,500 lb/in2] |
| Modulus | ASTM D 790 | 2,940 N/mm2 [427,000 lb/in2] |
| Cured Properties - Electrical | Test Method | |
| Breakdown Voltage | ASTM D 149 | 51.9 kV @ avg. of 2.79 mm |
| Dielectric Strength | ASTM D 149 | 472 V/mil [18.6 kV/mm] |
| Volume Resistivity | ASTM D257 | 5.3 x1012 ohm · cm |
| Surface Resistivity | ASTM D257 | 3.1 x1010 ohm |
| Comparative Tracking Index | ASTM D 3628 | Not established |
| Dielectric Dissipation & Constant | ASTM D 150-98 | dissipation, D constant, k’ |
| @ 60Hz | 0.007 D, 3.90 k' | |
| @1 kHz | 0.008 D, 2.95 k' | |
| @10 kHz | 0.013 D, 2.89 k' | |
| @100 kHz | 0.018 D, 2.83 k' | |
| @1 MHz | 0.017 D, 2.77 k' | |
| Cured Properties - Thermal | Test Method | |
| Coefficient of Thermal Expansion (CTE) | ASTM E 831 | 104 ppm/°C |
| Glass Transition Temperature (Tg) | ASTM D 3418 | Not established |
| Heat Deflection Temperature (HDT) | ASTM D 648 | 46.638°C [115.95°F] |
| Uncured Properties - Physical | Part A | Part B |
| Color | Black | Clear, Amber Tint |
| Viscosity at 24°C [73°F] | 2,500 cP [2.5 Pa·s] | 11,000 cP [11.0 Pa·s] |
| Density | 1.127 g/mL | 0.967 g/mL |
| Flash Point | 154°C [309°F] | 110°C [230°F] |
| Odor | Mild | Musty |
| Uncured Properties - Physical | Mixture (2A:1B) | |
| Color | Black | |
| Viscosity at 24°C [73°F] | 3,300 cP [3.3 Pa·s] | |
| Density | 1.058 g/mL | |
| Mix Ratio by volume (A:B) | 2.0:1.0 | |
| Mix Ratio by weight (A:B) | 2.3:1.0 | |
| Solids Content (w/w) | 99% | |
| Chemical Solvent Resistance | ||
| Weight Change 3 days | Weight Change 45 days | |
| Water | < 0% | < 1% |
| Hydrocloric Acid | < 0% | < 1% |
| Isopropyl Alcohol | 0.3% | < 1% |
| Mineral spirits | 0.3% | 0.3% |
| Xylene | 2% | 9% |
| Ethyl Lactate | 3% | 7% |
| Iso Hexanes | 5% | 8% |
| Acetone | 7% | destroyed |
| Sample Size (grams) | Peak Exotherm (Temp. in °C) | Time in Minutes |
| 50 | 44 | 155 |
| 100 | 63 | 110 |
| 500 | 110 | 65 |
| Manufacturer (aka Brand): | MG Chemicals |
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