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Main Electronic Supplies Ltd
4554 Main Street, Vancouver, BC, Canada, V5V 3R5

*Dear Valued Customers*

We would like to inform you that Main Electronic Supplies is now permanently closed.

We are currently in the process of selling off our entire inventory in larger sections.
If interested, please email us at:

We sincerely thank you for your continued support since 1971!



    - Vintage Electronic Equipment/Accessories (Sold to Vancouver Prop & Costume -
    - Belts (Sold to Ring Audio in Toronto, Ontario -

    - Record Player Needles, Cartridges & Accessories (Sold)
    - Foam Surrounds (Sold)
    - Vacuum Tubes – Modern Stock (Sold)
    - Vacuum Tubes – NOS Stock (Sold)
        - Contact: Michael Charles (
        - Contact: Clark Graham (
    - Capacitors (Sold)
    - Resistors (Sold)

    - Bulk Wire (Sold)
    - EL Wire (Sold)


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Thermal Management Chemicals

Thermally Conductive Adhesive Sealant 1032

Excellent high thermal conductivity. White paste. Has UL flammability rating of V-1 using the UL 94 test. Has outstanding adhesion and electrical properties. Resistant to heat, cold, moisture, UV, ozone and chemicals. When cured, retains elastomeric properties throughout the operating temparature range of -55°C to 200°C (-67°F to 392°F). Use for bonding components and devices to heat sinks as well as in other bonding applications where flexibity, thermal conductivity, and flame retardance are of concern.
Primary Characteristics:
White Paste - Thermally Conductive - Flame retardant
Non-corrosive - Neutral cure - High strength
Fast cure, fast tack-free time - Aggessive adhesion
UL file - E 36952 - MIL-A-46146 A, - group 1, type 1

Available Sizes
1032-85ML - 85mL (3 oz) tube

Projection Tube Coolant 803

Designed for use in electronic cooling applications as a replacement for heat transfer fluid in projection tubes.


Available Sizes
803-250ML - 250ml (8 oz) Liquid
803-500ML - 500ml (16 oz) Liquid


Thermally Conductive Epoxy Encapsulating & Potting Compound 832-TC

100% solids. Formulated with undiluted Bis F resin for superior physical properties, and pigmented with high purity aluminum oxide pigment to provide excellent thermal conductivity at reasonable cost. Pigmented black for excellent thermal absorption and emission.
Provides superior protection from impact, shock, con-ductivity, moisture, abuse, chemicals, and analysis
Two part epoxy, with a 1 to 1 mixing ratio by volume.
Two hour working time
Suitable for large production runs
Cures in 2 days at room temperature or one hour at 65°C.
Available Sizes
Epoxy - Black, Thermally Conductive Encapsulating & Potting Compound
832TC-450ML - 450mL kit (16 oz) Liquid
832TC-2L - 2 liter kit (0.5 gal) Liquid
832TC-40L - 40 liter kit (10 gal) Liquid

Thermal Specifications
Thermal Conductivity 0.682 W/m*K
Thermal Diffusivity 0.38 mm2/s
Volumetric Specific Heat 1.9MJ/m3*K

Silver Conductive Epoxy 8331

Forms high strength conductive bonds

This two part silver epoxy offers high electrical conductivity and strong conductive bonding. Use in place of traditional soldering on heat sensitive components. Good for repairing defective traces and creating jumpers on boards. Can be used as an effective heat sink adhesive. The Conductive Silver Epoxy comes in two 7g syringes.

Available Sizes
8331-14G - 14g (0.35 oz) Two 7g Syringes

Cure time @ 24°C (75°F) 4 hours
Cure time @ 65°C
(150°F) 10 minutes
Working time @ 22°C 10 minutes
Volume resistivity 2.00 x 10-2 ohm · cm


Carbon Conductive Grease 846

Lubricates and improves electrical and thermal connections between sliding surfaces, while providing protection from moisture & corrosion. Excellent for use on switches and EMI shielding applications.
Prevents normally closed switches from corroding in place.
Reduces make-break arching and pitting of switch contact surfaces
Improves the connection between irregular or pitted contact surfaces
Reduces EMI noise by maintaining a continuous path between conductive surfaces
Thermally stable up to 200°C

Available Sizes
846-80G - 80g (5 oz) Grease

Silicone Heat Transfer Compound 860

Designed for use in transfering heat away from electrical and electronic devices such as transistors, power diodes, semi-conductors, ballasts and thermocouple wells.

High thermal conductivity - High dielectric constant
High dissipation factor - Use with heat sinks or metal chassis
Will not dry or harden
Contains zincs oxides and polydimenthyl siloxane

Available Sizes
860-150G - 150g (2.8 oz) Liquid - TUBE
860-1GAL - 1gal (20 lbs.) Liquid - PAIL
860-1KG - 1kg (2.2 lbs.) Liquid - TUB
860-4G - 4g x 100 Liquid - SINGLES

Physical Property Test Method Performance Range
Appearance White Paste
Penetration ASTM D 217 290-330 mm
Bleed 200°C / 24 hrs 2.0% maximum
Evaporation 200°C / 24 hrs 2.0% maximum
Specific Gravity 2.3 minimum
Max. operating temp. Constant: 200°C
Intermittent: 300°C

Physical Property Test Method Typical Value
Thermal Conductivity Hot Wire Method ASTM D 257 0.657 W / (m * K)
Volume Resistivity ASTM D 150 1.5 x 1015 Ohm/cm3
Dissipation Factor ASTM D 150 0.0032
Dielectric Constant ASTM D 149 3.81
Dielectric Strength 400
(10 mil gap)



5 gram tube

$ 5.50 Canadian

Thermal Grease with Nanometer Technology

High penetrability & High thermal conductivity.
Excellent stability and unsurpassed performance under a wide range of temperature and operating conditions.
Contains Blue cool molecules that provide superior performance to other greases.
In comparison with normal thermal greases, NANO BLUE has higher density and higher adhesive characteristics, which greatly improves the heat transfer capability.

# CA-AS5

$ 11.75
Canadian Dollars


Premium Silver Thermal Compound

Contains 99.9% pure silver: Arctic Silver 5 uses three unique shapes and sizes of pure silver particles to maximize particle-to-particle contact area and thermal transfer.
High-Density: Arctic Silver 5 contains over 88% thermally Conductive filler by weight. In addition to micronized silver, Arctic Silver 5 also contains sub-micron zinc oxide, aluminum oxide and boron nitride particles. These thermally-enhanced ceramic particles improve the compound's performance and long-term stability.
Controlled Triple-Phase Viscosity: Arctic Silver 5 does not contain any silicone. The suspension fluid is a proprietary mixture of advanced polysynthetic oils that work together to provide three distinctive functional phases. As it comes from the tube, Arctic Silver 5's consistency is engineered for easy application. During the CPU's initial use, the compound thins out to enhance the filling of the microscopic valleys and ensure the best physical contact between the heatsink and the CPU core. Then the compound thickens slightly over the next 50 to 200 hours of use to its final consistency designed for long-term stability. (This should not be confused with conventional phase change pads that are pre-attached to many heatsinks. Those pads melt each time they get hot then re-solidify when they cool. The viscosity changes that Arctic Silver 5 goes through are much more subtle and ultimately much more effective.)
Not Electrically Conductive: Arctic Silver 5 was formulated to conduct heat, not electricity. (While much safer than electrically conductive silver and copper greases, Arctic Silver 5 should be kept away from electrical traces, pins, and leads. While it is not electrically conductive, the compound is very slightly capacitive and could potentially cause problems if it bridges two close-proximity electrical paths.)
Absolute Stability: Arctic Silver 5 will not separate, run, migrate, or bleed.

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*Dear Valued Customers*

We would like to inform you that Main Electronic Supplies is now permanently closed.

We are currently in the process of selling off our entire inventory in larger sections.
If interested, please email us at:

We sincerely thank you for your continued support since 1971!

Prices are subject to change without notice.