Fingerstock Gaskets

Made in the USA. Engineered for Precision.

Tech Etch shielding strips are trusted across aerospace, defense, electronics, and telecom industries for high-performance EMI/RFI control. Proudly manufactured in the USA, our fingerstock gaskets deliver quality you can trust with no tariffs and full RoHS compliance.

Our EMI shielding strips are available in a variety of formats:

  • Standard lengths from 16” to 24”
  • Continuous coils up to 35 feet
  • Individual fingers or custom full-finger configurations
    All made to fit your specs with precision.

We offer:

  • Uncompressed height ranges from .03” to .44”
  • Solutions for gaps as small as .01”
  • Multiple thickness options including both standard and TF gaskets

Whether you’re designing for a rugged aerospace enclosure or optimizing signal protection in high-frequency applications, Tech Etch offers domestic reliability and engineering support every step of the way.

made in usa

Contact our U.S.-based engineering team today to discuss standard options or custom modifications tailored to your needs.

EMI SHIELDING COMPATIBILITY

ELECTROMAGNETIC COMPATIBILITY

EMI/RFI Shielding Products are designed to either keep out or keep in electromagnetic interference. Shielding reflects and absorbs incident radiation. The higher the attenuation of the shielding, the more effective it is at keeping in or out the undesired electromagnetic interference.

ELECTROCHEMICAL COMPATIBILITY

To avoid galvanic action between contacting metals refer to this chart. Materials in adjacent groups may be safely used together. Choosing materials from within a single group in the table will provide the least corrosion due to galvanic action when the materials are in contact for an extended period of time with appropriate protective finish.

BERYLLIUM COPPER EMI SHIELDING PRODUCTS
  • Finger Stock
  • “D” Connector Gaskets
  • Contact Rings
STAINLESS STEEL EMI SHIELDING PRODUCTS
  • Finger Stock
  • “D” Connector Gaskets
  • Expansion Slot
CUSTOM DESIGNED EMI SHIELDING

Tech Etch supplies many custom designed shielding components for special applications from high volume requirements using progressive dies, to prototype and small quantities utilizing photoetch fabrication. Call for information.

BERYLLIUM COPPER EMI SHIELDING PERFORMANCE

Note: Plating the mating surfaces with the same material will provide superior performance. Chromate chemical film on aluminum maintains surface conductivity by reducing corrosion.

GROUPING OF METALS BY DECREASING GALVANIC ACTIVITY

 

Group 1 Group 2 Group 3 Group 4
Magnesium Aluminum Cadmium Plating Brass
Magnesium Alloys Aluminum Alloys Carbon Steel Stainless Steel
Aluminum Zinc & Zinc Plating Iron Beryllium Copper
Aluminum Alloys Chromium Plating Nickel & Nickel Plating Copper & Copper Alloys
Zinc & Zinc Plating Cadmium Plating Tin & Tin Plating Nickel/Copper Alloys
Chromium Plating Carbon Steel Tin/Lead Solder Monel
Iron Brass Silver
Nickel & Nickel Plating Stainless Steel
Tin & Tin Plating Beryllium Copper
Tin/Lead Solder Copper & Copper Alloys
Nickel/Copper Alloys
Monel

Click here to download our 52-page Shielding Product Catalog.

Click to go to our Document Manager page where you can search our site or type in part numbers from our 52-page Shielding Product Catalog to obtain their Interactive PDF Sales Drawings.

Click to download the Shielding Strips Specifications sheet