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MGC-832B (Black) and MGC-832C (Clear)
Epoxy Encapsulating and Potting Compound

Once Potted Your Board is Safe from Everything. Water, Chemical, Impact, even Eyesight if You Choose!

black epoxy encapsulating and potting compound
clear epoxy encapsulanting and potting compound

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What's special about this epoxy?

  • Protects your printed circuit boards from moisture, shock, debris, and chemicals
  • This is a non-conductive, low toxicity, highly impact resistant epoxy making it a great choice for your permanent potting needs
  • Never comes off; once cured, this epoxy sticks forever so your electronic devices are protected
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This epoxy comes in two colors, black and clear. The black epoxy will protect not only the PC board but your proprietary information as well. No one will be able to see your board under the black protective coating. The clear epoxy leaves your PC Board open to viewing but still protected from harmful moisture, impact, dirt, debris, chemicals and anything else that might damage your electrical components.

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  • MGC-832B is black epoxy which hides your PCB proprietary information from anyone else's eyes
  • MGC-832C is clear epoxy allowing all to see your board
  • Very easy to use - just mix and pour
  • This epoxy compound can be cured on just an hour!
  • One year warranty
832B - Part A (Resin)
Hazards Identification:

WHMIS Codes: D2B

NFPA Ratings: Health 1; Flammability 0; Reactivity 0

HMIS Ratings: Health 1; Flammability 0; Reactivity 0

Eyes: Non-irritating.

Skin: Prolonged exposure may cause skin irritation. May cause allergic reaction in some individuals.

Inhalation: At room temperature, exposure to vapors is unlikely due to physical properties. Higher temperatures may generate vapor levels sufficient to cause irritation.

Ingestion: Single dose oral toxicity is low. Amounts ingested incidental to industrial handling are not likely to cause injury; however, ingestion of large amounts may cause injury.

Chronic: No information available.

Fire Fighting Measures

Auto ignition Temperature: n/e

Flash Point: 190°C;

LEL / UEL: n/e

Exposure Control

Routes of entry: Eyes, ingestion, inhalation, and skin.

Ventilation: Use adequate general or local exhaust ventilation to keep airborne concentrations below exposure limits.

Personal Protection: Wear appropriate protective eyeglasses or chemical safety goggles. Wear appropriate protective clothing to prevent skin contact. Use a NIOSH approved respirator when necessary.

Physical and Chemical Properties

Physical State: liquid

Odor: odorless

Solubility: none

Evaporation Rate: n/e

Boiling Point: n/e

Specific Gravity: 1.13

Vapor Pressure: n/e

Vapor Density: 8.6 (Air=1)

pH: n/a

Stability and Reactivity

Stability: Stable at normal temperatures and pressures.

Conditions to avoid: n/a

Incompatibilities: n/a

Polymerization: Will not occur.

Decomposition: Carbon dioxide, and carbon monoxide, phenolic compounds.

 
832B - Part B (Hardener)
Hazards Identification:

WHMIS Codes: D2B

NFPA Ratings: Health 1; Flammability 0; Reactivity 0

HMIS Ratings: Health 1; Flammability 0; Reactivity 0

Eyes: Causes severe eye irritation. May cause visual impairment.

Skin: May cause skin irritation.

Inhalation: May cause irritation of the upper respiratory tract.

Ingestion: Relatively harmless. May cause gastrointestinal irritation, ulceration and or burns in the mouth and throat.

Chronic: No information available.

Fire Fighting Measures

Auto ignition Temperature: n/e; Flash Point: 190°C; LEL / UEL: n/e

Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.

General Information: n/a

Exposure Control

Routes of entry: Eyes, ingestion, inhalation, and skin.

Ventilation: Use adequate general or local exhaust ventilation to keep airborne concentrations below exposure limits.

Personal Protection: Wear appropriate protective eyeglasses or chemical safety goggles. Wear appropriate protective clothing to prevent skin contact. Use a NIOSH approved respirator when necessary.

Physical and Chemical Properties

Physical State: liquid

Odor: ammonia

Solubility: moderate

Evaporation Rate: n/e

Boiling Point: n/e

Specific Gravity: 0.96

Vapor Pressure: n/e

Vapor Density: n/e

pH: n/a

Stability and Reactivity

Stability: Stable at normal temperatures and pressures.

Conditions to avoid: n/a

Incompatibilities: Excessive heat.

Polymerization: Will not occur.

Decomposition: Unknown.

 

832B Black Epoxy Encapsulating & Potting Compound Specifications   832C Clear Epoxy Encapsulating & Potting Compound Specifications
Uncured Properties - Resin [Part A]

Viscosity

2,500 cps

Specific Gravity

1.1273

Color

Black

Uncured Properties - Hardener [Part B]

Viscosity

11,000 cps

Specific Gravity

0.9564

Color

Clear, amber tint

Cured Properties - PHYSICAL

Mixed Viscosity

3,300 cps

Mixed Specific Gravity

1.0577

Volume Mix Ratio (resin:hardener)

2.0:1

Mass Mix Ratio (resin:hardener)

2.3:1

Shore Hardness

80 - 82 Shore D

Tensile strength (ASTM D 638)

8475 psi

Elongation

3.3%

Compression strength (ASTM D 695)

14,675 psi

Modulus

375,000 psi

Flexural strength (ASTM D 790)

16,500 psi

Modulus

427,000 psi

Izod impact strength (ASTM D 256)

0.443 ft-lbs / inch notch 0.259" thick

Lap Shear Strength (ASTM D 732)

957 psi

Working time (100g)

60 min.

Cure Time (100g, room temp.)

24 hours

Heat Cure Time (100g, 65°C)

60 min.

Cured Properties - TEMPERATURE

Coefficient of Thermal Expansion (ASTM E 831)

0.036" / 10" @ 32°F, 0.013" / 10" @ 72°F

Constant Service Temperature

140°C (284°F)

Intermediate Service Temperature

145°C (293°F)

Heat Deflection Temp. (264 psi) (ASTM D 648)

46.638°C (115.95°F)

Cured Properties - ELECTRICAL

Volume Resistivity (ASTM D 257)

3.1 x 1010 ohms

Surface Resistivity (ASTM D 257)

5.3 x 1012 ohm · cm

Dielectric Strength (0.124" thick)
(ASTM D 149)

402 V / mil, 60 Hz

Dielectric Constant (ASTM D 150)

3.9 @ 60Hz

Dissipation Factor

0.007 @ 23°C, 60Hz

Insulative

Yes

Conductive

No

Chemical and Solvent Resistance

 

Change after
3 days

Change after
45 days

Hydrochloric Acid

< 0%

< 1 %

Isopropyl Alcohol

< 0.3 %

< 1 %

Ethyl Lactate

< 3 %

< 7 %

Acetone

< 7%

destroyed

Xylene

< 2%

< 9 %

Iso hexanes

< 5 %

< 8 %

Mineral spirits

< 0.3 %

< 0.3 %

 
Uncured Properties - Resin [Part A]

Viscosity

 

2,500 cps

Specific Gravity

 

1.1273

Color

 

Clear (yellow tint), colorless

Uncured Properties - Hardener [Part B]

Viscosity

 

11,000 cps

Specific Gravity

 

0.9564

Color

 

Clear, amber tint

Cured Properties - PHYSICAL

Mixed Viscosity

 

3,300 cps

Mixed Specific Gravity

 

1.0577

Volume Mix Ratio (resin:hardener)

 

2.0:1

Mass Mix Ratio (resin:hardener)

 

2.3:1

Working time (100g)

 

60 min.

Cure Time (100g, room temp.)

 

24 hours

Heat Cure Time (100g, 65°C)

 

60 min.

Tensile Elongation

ASTM D 638

3276 psi / 6.4% elongation

Compression Strength/modulus

ASTM D 695

8971 psi / 315000 psi

Flexural strength/modulus

ASTM D 790

5549 psi / 370,000 psi

Izod impact strength

ASTM D 256

0.700 ft-lbs / inch notch, 0.214" thickness

Shore Hardness

ASTM D 2240

85 (initial) - 85 (10 sec) averages

Coefficient of Thermal Expansion

ASTM E 831

0.036" / 10 " @ 32°F; 0.020"/10" @72°F

Lap shear strength

ASTM 1002

702 psi

Dielectric strength (0.114"thk)

ASTM D 149

425 V / mil, 60 Hz

Heat deflection temp. 264 psi

ASTM D 648

43.548°C (92.22°F)

Cured Properties - TEMPERATURE

Constant Service Temperature

140°C (284°F)

Intermediate Service Temperature

145°C (293°F)
Cured Properties - ELECTRICAL

Volume Resistivity (ASTM D 257)

1.22 x 10 ohm · cm

Surface Resistivity (ASTM D 257)

5.50 x 1015 ohm · cm

Dielectric Constant (ASTM D 150)

3.23 @ 60Hz; 3.19 @ 103 Hz; 2.99 @ 106 Hz

Insulative

Yes

Conductive

No
Chemical and Solvent Resistance

 

Change after 3 days

Change after 45 days

Hydrochloric Acid

< 0%

< 1 %

Isopropyl Alcohol

< 0.3 %

< 1 %

Ethyl Lactate

< 3 %

< 7 %

Acetone

< 7%

destroyed

Xylene

< 2%

< 9 %

Iso hexanes

< 5 %

< 8 %

Mineral spirits

< 0.3 %

< 0.3 %

Attention: Mixing ratio for this product is 2 parts A to 1 part of B. Please be advised that there is a misprint on our label for one of the production runs.

PART # DESCRIPTION WEIGHT PRICE
MGC-832B-375ML MG Chemicals Black Encapsulating & Potting Compound 12oz 2 lbs $27.14add to cart
MGC-832B-3L MG Chemicals Black Encapsulating & Potting Compound  0.8 gal 8 lbs $121.50add to cart
MGC-832B-60L MG Chemicals Black Encapsulating & Potting Compound 16 gal 160 lbs $1,883.25add to cart
MGC-832C-375ML MG Chemicals Clear Encapsulating & Potting Compound 12oz 2 lbs $27.14add to cart
MGC-832C-3L MG Chemicals Clear Encapsulating & Potting Compound  0.8 gal 8 lbs $121.50add to cart
MGC-832C-60L MG Chemicals Clear Encapsulating & Potting Compound 16 gal 160 lbs $1,883.25add to cart

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