Standards Hub

This hub brings together SCH’s key guidance on conformal coating and Parylene standards – including IPC-A-610, IPC-CC-830, IEC 60664, UL 746 and NASA workmanship standards. These documents underpin acceptance criteria, material qualification, creepage & clearance design, and long-term reliability for coated electronics.

Use the Standards Hub to understand what each standard covers, how it relates to conformal coating and Parylene, and where SCH’s own technical articles, training and consulting services map onto those requirements. It is designed to
complement topic hubs such as Design, Inspection & Quality and Parylene Coating.

Explore Standards-Based Guides

• The IPC-A-610 Standard and Conformal Coating– how IPC-A-610 defines coating coverage, meniscus, edge definition and defects.
• The IPC-CC-830 Conformal Coating Material Standard– material qualification, test regimes and what they mean for production.
• MIL-I-46058C (Cancelled) & MIL Standards for Conformal Coating– explains defence-related MIL requirements, why MIL-I-46058C is still referenced, and how modern programmes typically rely on IPC standards and contractual flow-downs.

Related topic hubs: Conformal Coating Design Hub • Inspection & Quality Hub • Parylene Coating Hub

IPC-A-610 is the primary workmanship standard for electronic assemblies. For conformal coating, it defines the acceptability of coverage, meniscus shape, edge definition, defects, bubbles, voids and contamination across Classes 1–3.

SCH uses IPC-A-610 to help customers align inspection criteria, UV checks and sampling plans with their
end-customer requirements – reducing disputes at incoming inspection and during audits.

Read SCH’s IPC-A-610 coating guide • IPC-A-610 training & certification (external)

IPC-CC-830 defines the qualification and performance requirements for conformal coating
materials.

For OEMs, CC-830 provides confidence that a coating has passed a recognised qualification regime. For coating houses and in-house lines, it supports material selection, supplier comparison and ongoing QA checks.

Read SCH’s IPC-CC-830 material standard guide • IPC-CC-830C table of contents (external)

MIL-I-46058C was historically used as a military reference for conformal coating materials, but it is now cancelled. Despite this, it continues to appear on legacy drawings and in defence supply chains, often leading to confusion about what is actually required.

In modern programmes, “MIL-SPEC” expectations are typically met through a combination of IPC-CC-830 (material performance), IPC-A-610 (workmanship acceptance), and customer-specific contractual flow-downs.

Read SCH’s guide to MIL-I-46058C & MIL standards • Do you need MIL-SPEC qualification? (explainer)

IEC 60664-1 defines insulation coordination for low-voltage equipment, including creepage distances, clearances and pollution degree. For coating, it underpins the concept of coating credit.

The UL 746 series addresses safety, flammability and long-term thermal performance of polymeric materials used in electronic equipment.

NASA-STD-8739.1 provides high-reliability workmanship guidance for polymeric applications, including
conformal coating.

Useful Standards & Compliance Links

• 🔗 IPC-A-610 Training & Certification
• 🔗 IPC – Industry Standards & Documents
• 🔗 IEC Webstore – International Standards (IEC 60664, etc.)
• 🔗 NASA-STD-8739.1 – Polymeric Applications
• 🔗 SCH Conformal Coating Consultation
• 🔗 Technical Articles (Knowledge Hub)

Need Help Navigating Standards & Compliance?

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Note: This article provides general technical guidance only. Final design, safety, and compliance decisions must be verified by the product manufacturer and validated against the applicable standards.