Automated Form In Place Elastomer EMI/RFI Gaskets

Chomerics’ automated CHOFORM® technology dispenses form-in-place conductive elastomer gaskets on metal or plastic housings. The system applies programmed gasket beads with exceptional accuracy in three full axes, compensating for uneven surfaces in castings and molded parts to provide consistent, highly reliable seals. Gaskets can be applied on flanges as narrow as .030 inch (0.76 mm), affording more space for board components or allowing smaller overall packaging. CHOFORM® EMI/RFI gaskets cure in minutes and provide more than 75 dB attenuation from 200 MHz to 10 GHz.

• Form-In-Place Product Selector Guide (.pdf)
• More Information on Cho-Form Corrosion Resistant Form-in-Place EMI Shielding Material

ParPHorm S1936, S1945, L1938 (non-conductive) Form-in-Place Sealing Compounds

ParPHorm is a family of non-conductive, thermal cure, form-in-place, elastomeric sealing compounds. These silicone and fluorosilicone materials provide environmental, fluid, and dust sealing of small enclosures. The product line consists of state-of-the art compounds designed to be robotically dispensed onto small housings and then thermally cured. Curing of the dispensed materials is done via in-line ovens at 230°F for 40 minutes. Dispensed bead heights range from 0.018 in. (0.46 mm) to 0.13 in. (3.94 mm). Application advantages of the materials are resistant to a wide variety of fluids, excellent substrate adhesion, low hardness, and outstanding compression set properties.

• Download ParPHorm Data Sheet (.pdf)
• Download ParPHorm 1800 Data Sheet (.pdf)
• Download ParPHorm S1945 MSDS (.pdf)

Typical Applications
• Conductive Elastomer Perimeter Gaskets
• Shielded PCB Covers
• PCMCIA Card Shielding
• Plastic Covers With Conductive Elastomers
• Metal Covers With Conductive Elastomers
• Cabinet Card Shielding for Indoor Enclosures
• Plastic & Metal Covers With Conductive Elastomer
• Navigation Systems
• Satellite Radio Receivers

Conductive Elastomer EMI/RFI Gaskets

• Material Selection and Specifications (.pdf)
• Volume Resistivity Measurement (.pdf)
• Nickel-Plated Graphite-Filled Elastomers (.pdf)
• UL 94V-0 Rated, Commercial-Grade Elastomer Gaskets
• Corrosion-Resistant Gaskets
• Sheet Stock
• Extruded Conductive Elastomers
• Extruded Strips & Custom Profile Shapes (.pdf)
• Clip-On Conductive Elastomer Gaskets
• Co-Extruded Elastomer Strips & Conductive/ Non-conductive
• Reinforced Elastomer Gaskets
• Molded-in-Place Cover Seals
• Custom Molded Gaskets
• Molded D- and O-Rings
• Waveguide Gaskets
• Connector Gaskets
• Flat Washers
• Spacer Gaskets & Conductive Elastomer/Plastic
• CHO-VER™ Shield EMI Shielding Covers

Foam-Based EMI/RFI Gaskets

• SOFT-SHIELD® Gasket Selector Guide (.pdf)
• SOFT-SHIELD® 7000 Series Declaration of Product Obsolescence (.pdf)
• SOFT-SHIELD® 5000 Series-Conductive Fabric Over Foam
• SOFT-SHIELD® 4850 UL 94V-0 Rated Multi-Planar EMI Gaskets
• SOFT-SHIELD® 4800 Multi-Planar EMI Gaskets
• SOFT-SHIELD® 4000 Series-Reinforced Foil Over Foam
• SOFT-SHIELD® 3500 and 3500 Green Conductive Fabric Over Foam Gaskets
• SOFT-SHIELD® 2000 Series-Conductive Yarn Over Foam
• SOFT-SHIELD® 1000 Series-Knitted Wire Over Foam

Metal EMI/RFI Gaskets

• SPRING-LINE® BeCu Spring Fingers and Grounding Clips
• SPRING-LINE® Stainless Steel Card Cage Gaskets
• SPRING-LINE® BeCu Contact Rings (.pdf)
• SPRING-LINE® Metal D-Connector Gaskets
• SPRING-LINE® Stainless Steel ATX Shields
• METALEX™ EMI Frame Gaskets and Strips

Wire Mesh EMI/RFI Gaskets

• Wire Mesh Selector Guide (.pdf)
• Compression/Deflection & Shielding Data (.pdf)
• MESH STRIP® All Metal and Mesh Over Elastomer Gaskets
• SPRINGMESH Highly Resilient EMI Mesh Gasket
• COMBO STRIP® Knitted Wire Mesh and Elastomer Weather Seal
• SHIELDMESH® Compressed Mesh Gaskets
• POLASHEET® and POLASTRIP® Composite Gasketing/Weather Seal
• POLA-H® Composite Gasketing
• METALASTIC® EMI Gasketing with Pressure Seal
• METALEX Frame and Strip Gaskets
• Compressed Mesh Gaskets
• Standard Wire Mesh Connector Gaskets (.pdf)