Features
• Excellent thermal and electrical conductivity
• Commercially pure 99+%
• Soft, easily soldered
• Used for RFI shielding, Faraday cages, Tempest shielding
• Shielding Graph PDF and RFI Shielding Section
• Copper Mesh Disc Prices
Copper wire mesh is a plain square weave (over one, under one). It has excellent thermal and electrical conductivity and is easily soldered. Copper mesh is ductile and malleable, but not as strong as brass.
Weave Method
Plain weave and twill weave
Copper Wire Mesh Cutting
Copper mesh is easily cut with hand tools. The heavy meshes from 2 mesh through 10 mesh is best cut with tin snips. To cut 16 mesh and finer, you can use a common scissor.
Choosing a copper RFI shielding mesh
Radio frequency shielding and Faraday construction can be accomplished with three popular copper meshes. 16 mesh .011inch wire diameter has a high airflow but the lowest shielding effectiveness. 22 mesh .015 inch wire diameter is specified by the U S government Tempest program. It is a very sturdy mesh which still has good airflow but than 16 mesh. 100 mesh .0045 inch wire diameter is the finest practical copper shielding mesh. It has restricted airflow but is quite effective into the higher frequencies.
Copper Wire Mesh - Look and Feel
Copper mesh is the softest of our metals and may be easily bent with your hand and has very little springback after being bent or formed. It is a yellowish red color when first woven and will gradually patina (discolor) to a greenish/bluish called verdigris. This patina effect may be accelerated by first removing surface oil from the mesh, then rinsing it well, this will leave the copper shiny but unprotected.and ready to change color in the air. In an outdoor environment, the discoloration will become pronounced in less than six months at the seashore or it may remain untarnished for years in desert conditions. This discoloration may be stopped by lacquering, waxing, or periodically oiling the mesh to protect it from atmospheric conditions.
An alternate means of changing the color is to heat the copper in an oven or with a torch and it will progress through a spectrum of colors and remain at the color that it was when it was removed from the heat. Yellows,oranges,blues, are among the colors that copper screen can be changed to using heat.
• Since the color of copper mesh is affected by the atmosphere, We try to package carefully to protect the color as much as possible but we still cannot guarantee a uniformed, brilliant polished finish when you receive it.
Special specifications can be produced by the customer's requirements.
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