About Paint and Protective Coatings
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Heat Sink Bonding Compounds
Bond heat sinks to surfaces, eliminating air gaps for maximum heat transfer. These compounds are commonly used with transistors, diodes, rectifiers, and transformers.
Container | |||||||
|---|---|---|---|---|---|---|---|
| Thermal Conductivity | Temp. Range, °F | Type | Size, fl. oz. | Manufacturer | Manufacturer Model Number | Each | |
Silicone | |||||||
| 0.68 W/m-K @ 97° F | -40° to 390° | Tube | 5 | Dow Corning | 340 | 00000000 | 000000 |
Ready-to-Use Silicone Potting Compounds
No mixing required—these potting compounds come ready to apply. Use them to encase electronic assemblies for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They're also known as RTV (room-temperature vulcanizing) compounds because they don’t need heat or UV light to cure.
Potting compounds that meet UL 94 V-0 have passed a test for flame retardance.
Container | Dry Time | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Size, fl. oz. | Type | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Color | Clarity | Each | |
Dow Corning Compounds—Medium Soft | ||||||||||||||
| 738 | 3 | Tube | Paste | 90 min. | 24 | 475 | Not Rated | -45° to 390° | UL Listed, UL Recognized Component, MIL-A-46146, UL 94 HB | Aluminum, Copper, Steel, Plastic, Rubber, Fiberglass | White | Opaque | 0000000 | 000000 |
| 738 | 10.1 | Cartridge | Paste | 90 min. | 24 | 475 | Not Rated | -45° to 390° | UL Listed, UL Recognized Component, MIL-A-46146, UL 94 HB | Aluminum, Copper, Steel, Plastic, Rubber, Fiberglass | White | Opaque | 0000000 | 00000 |
Dow Corning Compounds—Soft | ||||||||||||||
| 3165 | 10.3 | Cartridge | Paste | 4 min. | 24 | 500 | Not Rated | -45° to 390° | UL 94 V-0 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Glass | Gray | Opaque | 0000000 | 00000 |
| 748 | 3 | Tube | Paste | 30 min. | 24 | 475 | Not Rated | -65° to 350° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Glass | Off-White | Opaque | 000000000 | 00000 |
| 748 | 10.1 | Cartridge | Paste | 30 min. | 24 | 475 | Not Rated | -65° to 350° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Glass | Off-White | Opaque | 000000000 | 00000 |
| 838 | 3 | Tube | Paste | 45 min. | 24 | Not Rated | Not Rated | -45° to 390° | UL Listed, UL Recognized Component, UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass | White | Opaque | 0000000 | 00000 |
| 839 | 10.3 | Cartridge | Paste | 35 min. | 24 | Not Rated | Not Rated | -45° to 390° | __ | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass | Blue | Semi-Clear | 0000000 | 00000 |