Cybershield is leading applicator of conductive shielding paint onto plastic parts to provide EMI shielding.
Download Cybershield Brochure to obtain more information about metallized plastics and other manufacturing services offered by Cybershield.
Conductive shielding paint is widely used in the electronics industry today for EMI RFI shielding and electrostatic discharge (ESD) control. Conductive paint is sprayed onto the plastic using an air atomizer or airless spray equipment.
- Copper conductive paint is widely used in higher frequency EMI shielding applications (>30 MHz).
- Silver conductive paint is used in higher frequency EMI shielding applications where either higher surface conductivity and shielding effectiveness is required or where copper conductive paint will not meet environmental requirements, particularly corrosive environment. Silver is much higher cost than coper conductive paint and should be restricted to applications that require the added performance.
- Nickel conductive paint is used in lower frequency EMI shielding applications (<30 MHz)
Key process attributes are tailored for each application to provide optimal EMI/RFI shielding or electrostatic control performance including:
- Spray pattern - parts can be masked by hand with tape and plugs or by using custom built paint masking fixture
- Paint type - includes graphite, nickel, copper, silver plated copper and silver particles in water or solvent based matrix
- Paint thickness - typical dry film thickness ranges from 0.001 (0.025 mm) to 0.002" (0.050 mm)
Contact Cybershield to review your requirements or to discuss design options. We will promptly respond to your phone or email inquiry and provide technical support.
Cybershield offers customers seeking EMI shielding solutions for electronic equipment with the following expertise and skills:
- Extensive masking fixture design experience and know-how
- Experience with manual and robotic paint application methods to optimize conductive coating usage and costs. Higher volume projects can benefit from one of our integrated robotic application cells. Cybershield has 8 robotic paint cells with 6-axis control.
- Ability to paint parts up to 3 feet X 3 feet X 3 feet
Cybershield can reliably apply conductive paint onto a wide range of engineered plastic resins. Conductive paint adheres well to many commonly used resins while some plastic resins require application of adhesion promoter/primer prior to the application of the conductive paint.
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Common Paintable Resins
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ABS
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Polycarbonate (PC)
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Polybutylene Terephthalate (PBT)
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PC/ABS
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Poly Aryl Amide
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Polyphenylene Oxide (PPO)
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PC/PBT
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Polyphthalamide (PPA)
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Polyether Imide (PEI)
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Nylon
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Polystyrene (PS)
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Polyphthalamide (PPA)
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Difficult to Paint Resins (May Require Primer)
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Teflon (PTFE)
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Polyethylene
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Liquid Crystal Polymer
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PEEK
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Polyimide
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Polypropylene
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There are a variety of Conductive Paint products available for application, including: nickel, graphite, copper, silver, and silver-copper hybrids.
- Nickel conductive paint and graphite or carbon conductive paints provide excellent ESD coating protection, as well as moderate EMI RFI shielding effectiveness.
- Copper paints are a popular choice providing midrange shielding and conductivity performance while being very cost effective.
- Silver and silver-copper hybrid conductive paint offers higher levels of shielding effectiveness.
Since the EMI shielding effectiveness is a function of paint thickness and uniformity, it is important
to consider plastic part geometry and design complexity. Cybershield has extensive experience with application of conductive paints and can share its production expertise to guide mechanical design of plastic parts for successful conductive paint application. Major design guidelines for conductive paint are:
- Avoid Difficult to Paint Tight Bosses, Crevices and Small Holes, especially small blind holes
- Small through holes and blind holes can be masked during the paint application process
Cybershield also provides a wide variety of Turnkey Manufacturing Services, including:
- Injection molding of plastic parts
- Secondary operations
- Automated assembly
- Full project turnkey responsibility where we will take your specification and will have all the components tooled and produced. Let one of our customer focused teams take ownership of your next program from conception through production.
Contact Cybershield for Technical Specifications, Process Capability and EMI RFI Shielding Effectiveness Data.
| Sales Contact |
Manufacturing Facility & Corporate HQ |
Email: sales@cybershieldinc.com
Web: www.cybershieldinc.com
Phone: 214-227-3680
Fax: 936-633-6398 |
Cybershield
308 Ellen Trout Drive
Lufkin, TX 75904
Phone: 936-633-6387
Fax: 936-633-6398 |