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:
We offer:
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.
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
STAINLESS STEEL EMI SHIELDING PRODUCTS
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 |