Specify protection, masking and acceptance
Define the exposure, coating material, protected regions and keepouts. Review cleaning, application, cure, inspection and test access before adding protection to the assembly route.
Review acrylic, urethane, parylene and potting as different protection specifications. Each needs a defined material and process; protective intent alone does not establish a finished assembly rating or qualification.
Project scope and review plan · Use these fields to define the requested review. Example entries are illustrative; the order confirms the accepted scope and records.
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| Drawing / material requirement | Process decision | Acceptance information to agree |
|---|---|---|
| Exposure and approved grade | Material compatibility and coating vs potting scope | Customer material specification and required qualification method. |
| Protected regions / keepouts | Connector, contact, test-point and heat-transfer masking | Approved masking drawing; specified coverage / thickness checks if applicable. |
| Clean / apply / cure | Approved instructions and actual application arrangement | Confirm process record, inspection and rework requirements; review parylene grade and facility separately. |
Conformal coating is a process specification, not just a choice of resin. Start with the operating environment, the areas that need protection and the interfaces that must remain uncoated. KeepBest reviews coating requirements alongside assembly and test, with material selection, masking, application and acceptance conditions confirmed for the product before the process is included in the build.
Specify the approved acrylic product and the operating conditions it must address. Review cleaning, application, cure and rework needs with the material information, plus any customer-defined coverage or thickness acceptance criteria.
Where urethane is requested, identify the exact material and the exposures that drive the choice. Review its compatibility with components and assembly materials, with the intended process and repair requirements confirmed for the product.
Submit the approved parylene grade, application requirements, masking drawing and acceptance needs for a specific process and facility review.
Potting changes the assembly into an encapsulated unit rather than a thin coated board. Review enclosure geometry, connector access, material compatibility, thermal behavior and serviceability before defining this as part of the build.
Keep connectors, test points and heat-transfer surfaces usable after the protection step.
Provide a coating drawing showing connectors, test points, heat-transfer surfaces and other keepouts. Agree cleaning status, coverage inspection and the sequence with programming or functional testing so protected areas and usable interfaces are clear.
Follow the approved material specification and process instructions. Confirm the cleaning condition, application method, cure requirements and acceptance evidence for this product.
Agree the assembly cleaning condition and material compatibility before protection is applied.
Confirm the reviewed application arrangement and cure instructions for the approved material.
Check the specified coverage and keepouts against the acceptance drawing, with any required records linked to the released assembly.
Inputs, decisions & outputs
Describe the environmental need and supply the approved material or selection criteria. Confirm whether the request is coating, parylene or encapsulation, with any customer qualification requirements identified before process review.
Use the assembly and coating drawings to assess masking, access and compatibility. Confirm the proposed application arrangement, required preparation and process availability for the specific material and product geometry.
Agree when programming, electrical and functional checks occur relative to protection. Review the required inspection and acceptance evidence so coated regions, uncoated interfaces and any defects have defined disposition rules.
Review coverage, keepouts and the specified process evidence before packaging. Any repair or additional qualification follows the agreed product requirements, with acceptance recorded for the approved material and design revision.
Your project
Select the items you want to carry into the project brief.
Before release
No. Coating protects selected board surfaces with a thin layer; potting encapsulates an assembly within a resin volume. Their mechanical, thermal and repair implications need separate review for the product.
Do not infer a product rating from the coating alone. Enclosure design, connectors, uncoated areas and the specified qualification test affect the complete product. Define the intended protection and acceptance method explicitly.
The requested parylene process, facility and service arrangement require project-specific confirmation. Include the material grade and acceptance evidence in the request so the project team can review the actual scope.
Identify your connectors, test points, grounding contacts, heat-transfer surfaces and other functional interfaces on a drawing. Keepouts depend on the product; the customer-approved coating specification should define them.
Agree the sequence around the test access and protection method. Some checks need uncoated contacts or additional fixtures, and failures may be harder to repair after coating or potting. Define the planned route before the build.
Connected resources
Specify protection, masking and acceptance
Tell us what you are building and what you need reviewed. Include the current revision, quantities and any open questions. The project scope and acceptance criteria are agreed from your requirements.
Submit your details and files for project review. A saved reference confirms receipt; notification delivery is tracked separately.
Fill in your requirement information and upload Gerber and BOM files, we will give you a quote within 24 hours.
Fill in your requirement information and upload Gerber and BOM files, we will give you a quote within 24 hours.
