Conformal Coating
Discuss conformal coating for your PCB assembly with the operating environment, coating material and coverage map. Define protected areas, keep-outs, curing and acceptance requirements before application.
Protect the assembly areas your product needs protected
Conformal coating adds a thin protective layer to specified areas of an assembled board. Its selection depends on the environment, materials, electrical requirements and future access needed for connectors, adjustment or repair.
GlobalWellPCB reviews coating within the complete assembly route. Provide a coating map and the required material specification so coverage, masking, cleaning and inspection can be included in the quotation.
Reduce interpretation of protected areas and keep-outs.
Use your environment and compatibility requirements as the basis.
Plan testing and masking before the application step.
Specify cure, thickness, coverage and required records.
Choose the work your order needs
Specified coating materials
Identify the approved product or performance requirements. Acrylic, polyurethane and silicone families have different application and service considerations that need a project-specific selection.
Selective coverage and masking
Show where coating belongs and where it must stay out. Connectors, contacts, sensors and test points need clear instructions.
Coating with assembly and test
Sequence programming, electrical checks, cleaning and coating around the product requirements. Define any operation that must happen before coverage limits access.
How the project moves forward
- 01
Provide the environment and coating map
Include material, protected areas, keep-outs and acceptance needs.
- 02
Review compatibility and sequence
Discuss board cleanliness, masking, test access and curing requirements.
- 03
Approve the application plan
Confirm the released map and inspection criteria.
- 04
Coat and release the assembly
Apply the agreed process and check the required finish before packaging.
What to send for a useful quotation
| File or requirement | Details to include |
|---|---|
| Assembly identification | Board revision, quantity and populated views. |
| Operating environment | Describe exposure and product requirements driving protection. |
| Material constraints | Provide approved coating or material compatibility requirements. |
| Installed access | Identify connectors, adjustable parts and locations needed after coating. |
| Coating specification and map | Name the material and show coverage, keep-outs, masking and thickness requirements. |
| Sequence and acceptance instructions | State cleaning compatibility, cure requirements, tests and requested inspection records. |
Include the quantity, current revision and required delivery date. If a decision is still open, identify it in your message so the review can address it.
Know what will be checked and returned
| Review area | What it covers | What to specify |
|---|---|---|
| Coverage and keep-outs | Inspect the coated areas against the approved map. | Define connector, contact and sensor exclusions. |
| Cure and finish | Review the specified material process and finish criteria. | Provide thickness or other measurement requirements. |
| Electrical and service needs | Consider insulation, test access and any required post-coating checks. | Agree the relevant acceptance procedure. |
State any unit or batch identification, packaging and inspection or test records you need with delivery. The quotation confirms the operations and evidence included.
What shapes your quotation
A useful quotation describes the complete deliverable and its supply responsibilities. Include these items in the review so you can compare like-for-like scope.
- Coating material, board area and the required coverage.
- Masking complexity, cleaning, curing and handling.
- Inspection, measurement, test sequencing and requested records.
The delivery plan follows file readiness, approved materials and the requested operations. Share your target date and any items already available to help review the schedule.
Frequently asked questions
Will coating make the board waterproof?
Coating is a defined protective process, not a complete enclosure rating. Provide the actual exposure and protection requirements for your product review.
Which material should I request?
Specify an approved product or the required environmental and electrical performance. Selection and compatibility are reviewed with the assembly materials and intended use.
Can connectors and test points remain uncoated?
Mark them as keep-outs on the coating map, including masking and edge requirements.
Should functional testing happen before coating?
Define your required sequence. Some tests or programming need access that coating may restrict; any post-coating verification should also be specified.
Discuss your Conformal Coating requirements
Send the files, quantity and deliverable you need. Add your supply responsibilities, target date and any test or documentation requirements so the review covers the complete order.