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Plastic Part Painting & EMI Shielding
Where Cosmetic Finish
Meets Functional Performance.
PSI delivers both cosmetic painting and EMI shielding coatings — integrated with molding, managed under one roof, and executed as a controlled process from surface preparation through final handling.
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Color
Matched to your defined standard, every run
In-house
No outside vendors, no scheduling gaps
One QMS
Covers substrate and finish end to end

Core Capabilties

Cosmetic and functional coatings. Both done right.

Coating workflows are fully integrated with molding and downstream handling, ensuring finished parts meet quality standards at every stage. EMI shielding is executed to defined customer specifications, with no ambiguity in scope or performance targets.

Finishes That Meet the Mark
Color matched to defined standards
Color and finish are matched to customer-supplied standards — no interpretation, no batch-to-batch drift. Every run is verified against the approved reference before parts are released.
Consistent application across production runs
Process parameters, spray technique, flash time, and cure conditions are documented and controlled — delivering the same result on run fifty as on run one.
Handling that preserves the finish
A cosmetic part that's damaged between the paint cell and the shipping dock isn't a finished part. PSI's handling and packaging protocols protect the finish from the moment coating is complete through final shipment.
EMI Shielding That Performs
Conductive coatings to specification
EMI shielding coatings are applied to your defined specification — coverage area, coating thickness, and shielding effectiveness target all documented and verified. No approximation.
Surface preparation done right
Adhesion of conductive coatings depends entirely on surface preparation. PSI's prep protocols are designed for the specific substrate — ensuring the coating bonds correctly and maintains conductivity through assembly and service.
Coverage verified against your spec
Shielding effectiveness is a function of continuous, uniform coverage. PSI's inspection process verifies coverage against customer requirements before parts are accepted and released.
Fewer Handoffs. Tighter Control.
Coating integrated into the production flow
Parts move from the press to the coating cell without leaving the facility — no inter-vendor shipments, no handling damage in transit, and no scheduling dependency on an outside supplier's capacity.
One schedule. One quality system.
Molding and finishing operate on a shared production schedule under a single QMS. When there's a quality issue, one team owns it — from substrate surface condition through final coating result.
Built around your assembly needs
Coating sequence, masking requirements, and release timing are all aligned to your downstream assembly process — not to a generic finishing workflow that doesn't account for how the part is used after it leaves PSI.
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Coating Option
The right coating for what the part actually needs to do.
Cosmetic requirements, functional requirements, service environment, and substrate type all factor into coating selection. PSI matches the coating system to your application — not to a standard menu.
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The PSI Difference

Partnership From Day One

From the first design conversation to final assembly, our team works alongside your team at every stage. Engineering, molding, decoration, and assembly all happen under one roof, with a single team accountable for quality, timing, and consistency from start to finish.

No handoffs to outside vendors. No gaps in communication. Just experienced people who know your part, understand your standards, and are invested in getting it right.

Less guesswork.

No surprises.

Better Outcomes.

PSI asks questions before  a tool is cut — what does this part need to do, where does it live, what can’t it fail at? Our engineers work alongside yours from day one, so the people building your parts are in lock step with the people who designed them. Good engineering shouldn’t feel complicated. It should just feel like it works.

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Mold Transfer capabilities

Already have tooling? Transferring to PSI is easier than you think.

PSI has a proven process for qualifying and transitioning molds from other suppliers — minimizing disruption to your program while improving the quality, service, and cost structure of your molded parts. Whether you’re reshoring, consolidating suppliers, or simply looking for a better partner, we make the move straightforward.

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