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Silicone Electronic Coating | MS-462H
Miller-Stephenson’s Silicone Conformal Coating is a transparent, soft, flexible coating which offers excellent moisture resistance, good dielectric properties, and excellent light transmission capabilities for solar applications. It has good weatherability and resistance to U.V. light and dirt pick-up. This coating can be “solder-through” for easy repair. Contains Dow Corning 1-2577 silicone resin. This silicone resin meets the requirements of MIL-I-46058C, Type SR, IPC-CC-830B and UL 746E approva. It is also compatible with WEEE and RoHS.
Silicone Electronic Coating | MS-462H
Miller-Stephenson Silicone Electronic Coating ( MS-462H ) is a transparent, soft, flexible MIL-SPEC coating which offers excellent moisture resistance, good dielectric properties, and excellent light transmission capabilities for solar applications. It has good weatherability and resistance to U.V. light and dirt pick-up. This coating can be “solder-through” for easy repair. Contains Dow Corning 1-2577 silicone resin. This silicone resin meets the requirements of MIL-I-46058C, Type SR, IPC-CC-830B and UL 746E approval. It is also compatible with WEEE and RoHS.
Printed circuit boards (PCBs) form the foundation for electronics in automotive, consumer electronics, communications and industrial and energy applications. Yet these PCBs are often exposed to damaging environmental factors, ranging from moisture, dust and harsh chemicals to extreme thermal cycling and vibration.
Formulated from tough but flexible silicone technology, Miller-Stephenson’s MS-462H Silicone Electronic Coating promote extended service life and enhanced reliability for your PCB components and assemblies. Our industry-leading solutions have delivered proven protection for decades against moisture, service environment and a variety of harsh operating conditions includinga wide range of temperatures – from -45°C to 200°C. An additional benefit of silicone conformal coating is its excellent moisture protection. MS-462H is used in cases where there were extreme temperature differences, which resulted in excessive moisture. Other conformal coatings failed within hours or days, while silicone, especially when applied thickly, has been proven to succeed. One particular application was for electronically controlled heaters developed for artic temperatures.
After cure, Miller-Stephenson’s Silicone Conformal Coatings deliver dependable, long-lasting protection. Their natural elasticity also helps minimize mechanical or thermal stress on delicate component leads. Additional select grades deliver tougher, more abrasion resistant coatings ideally suited for electronic printed wiring board applications.
For help in choosing the correct conformal coating for your application see our article section
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For Widespread Use Across Product Lines: Notwithstanding any express or implied indication to the contrary, product information provided on or via this website is supplied upon the condition that the persons receiving such information will make their own, independent determination as to a given product’s suitability for any contemplated purposes prior to use. In no event will Miller-Stephenson be responsible for damages of any nature whatsoever resulting from the use of, or reliance upon, information provided, directly or indirectly, on this website in relation to any product and/or application.
Cure Electrical Properties
| Dielectric Strength (volts/mil) | 400 |
| Dielectric Constant (10Hz ) | 2.74 |
| Dissipation Factor 10^5 Hz | <0.0002 |
| Volume Resistivity (ohm/cm) | 5×10^13 |
Cure Physical Properties
| Operating Temperature | 94 V-00 |
| UL Flammability Classification | 240 |
| Tensile Strength (psi) @ 77F/25C | 74 |
| Elongation (%) @ 77F/25C | 80 |
| Durometer Hardness, Shore A, Points | 2.1 x 10^-4 |
| Coefficient of Thermal Expansion | 2.0 x 10^-4 |
| Water Absorption | |
| 100 hrs. @ 77oF/25oC | 0.11% |
| 100 hrs. @ 221F/105C & 98%RH | 0.33% |
For Widespread Use Across Product Lines: Notwithstanding any express or implied indication to the contrary, product information provided on or via this website is supplied upon the condition that the persons receiving such information will make their own, independent determination as to a given product’s suitability for any contemplated purposes prior to use. In no event will Miller-Stephenson be responsible for damages of any nature whatsoever resulting from the use of, or reliance upon, information provided, directly or indirectly, on this website in relation to any product and/or application.
Silicone Conformal Coating dries in approximately one hour and completely cures within 72 hours after coating. A good cure for a working environment requires 24 hours at 77F/25C and 50% relative humidity. Higher humidity and temperature will result in a faster cure. The coating can be cured in 30 minutes at 168F/75C or in 15 minutes at 302F/150C in an air circulating oven
For Widespread Use Across Product Lines: Notwithstanding any express or implied indication to the contrary, product information provided on or via this website is supplied upon the condition that the persons receiving such information will make their own, independent determination as to a given product’s suitability for any contemplated purposes prior to use. In no event will Miller-Stephenson be responsible for damages of any nature whatsoever resulting from the use of, or reliance upon, information provided, directly or indirectly, on this website in relation to any product and/or application.
Quart, Gallon, 5 Gallon. 55 Gallon drum
For Widespread Use Across Product Lines: Notwithstanding any express or implied indication to the contrary, product information provided on or via this website is supplied upon the condition that the persons receiving such information will make their own, independent determination as to a given product’s suitability for any contemplated purposes prior to use. In no event will Miller-Stephenson be responsible for damages of any nature whatsoever resulting from the use of, or reliance upon, information provided, directly or indirectly, on this website in relation to any product and/or application.