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MIL-I-46058 is a standard developed by the United States Department of Defense (DoD) to define the requirements for conformal coatings used on electronic circuit assemblies. These conformal coatings are thin protective layers applied to printed circuit boards (PCBs) and electronic components. Their purpose is to safeguard the electronics from environmental factors like moisture, dust, chemicals, and extreme temperatures. By providing this protection, the coatings enhance the reliability and extend the operational lifespan of the electronic assemblies.
Please consult the product page and product description for the specific grade/size you intend to purchase to ensure it will be supplied with MIL-I-46058 paperwork.
MIL-I-46058 establishes rigorous standards for the selection and application of conformal coating materials on printed circuit assemblies, with a core focus on shielding sensitive components from environmental hazards, thereby mitigating potential damage and electrical malfunctions. Compliance with these standards ensures that conformal coatings effectively bolster the durability and lifespan of electronic systems, guaranteeing steadfast performance even in demanding military and aerospace settings.
This standard encompasses various designations "UR", "AR", "ER" and "SR", and ensuring that conformal coatings meet a wider range of rigorous criteria, enhancing the durability and longevity of electronic systems. Compliance with MIL-I-46058 guarantees consistent performance, even in challenging military and aerospace environments.
Moreover, the specification fosters uniformity, reliability, and compatibility among suppliers and applications within these sectors, reinforcing quality assurance measures and facilitating seamless integration across diverse electronic platforms.
MIL-I-46058c is the only revision of the spec. It was originally established in July 1972. It had 5 further amendments and notices, with the most recent validation in June 2023. Silmid sell multiple products which conform to MIL-I-46058c. Our featured product is DOWSIL 1-2577, which is available in two sizes.
DOWSIL 1-2577
| Aspect | Description |
|---|---|
| Reliability and Longevity |
|
| Mission-Critical Applications |
|
| Interoperability |
|
| Variant | Description | Characteristics | Applications |
|---|---|---|---|
| SR (Silicone) | Exceptional flexibility and thermal stability. | Flexibility, thermal stability, moisture resistance, chemical resistance. | Extreme temperature variations, moisture, chemicals. |
| AR (Acrylic) | Excellent electrical properties and adhesion. | High dielectric strength, low surface resistance, UV resistance. | Critical applications requiring consistent electrical performance. |
| UR (Urethane) | Robust protection against chemicals and abrasion. | Chemical resistance, abrasion resistance. | Harsh operating conditions. |
| ER (Epoxy) | Exceptional adhesion and chemical resistance. | High adhesion, chemical resistance. | Applications requiring strong bond and chemical protection. |
Military Specification MIL-I-46058 emerges as a linchpin in maintaining the reliability and functionality of electronic components in defense applications. By setting stringent guidelines for conformal coatings, the standard not only fortifies the durability of electronic assemblies in challenging environments but also fosters interoperability within the defense industry. As technology continues to advance, these specifications remain indispensable for propelling military capabilities forward and safeguarding national security.
