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Copper Mesh

  • Excellent thermal and electrical conductivity
  • Commercially pure 99+%
  • Soft, easily soldered
  • Used for  RFI shielding, Faraday cages, Tempest shielding
  • NASA Shielding Guide  PDF See pages 45, and 51.
  • Shielding Graph PDF and RFI Shielding Section
  • Copper Mesh Disc Prices
  • More information about Copper Wire Mesh

    OVERVIEW

    This is a plain square weave (over one, under one). Excellent thermal and electrical conductivity and is easily soldered. Copper mesh is ductile and malleable, but not as strong as brass.

    Copper Wire Mesh - Examples of Uses

    • Snail control- any copper mesh may be used (selection would be based on strength and appearance). The snail receives a small but unpleasant electrical shock when it contacts copper mesh. Gardeners build small ground barrier strips or wrap stems and trunks with mesh bands. 2, 4,or 8 meshes would be a good choices for small snail fences. 22 mesh is a sturdy, easily formed mesh that wraps easily.
    • Insect screen -- 16 mesh .011 inch wire diameter
    • RFI Shielding
    • Copper Decorative lamps
    • Cabinet screens
    • Furniture
    • Ornaments
    • Gutter guard
    • Root control -- 16 mesh .011 inch wire diameter
    • Faraday cages
    • Ground planes and counterpoises for antennas
    • Tempest shielding -- 22 mesh .022 inch wire diameter
    • Sculpture
    • Paper making
    • Orgone energy boxes

    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.

    Copper Wire Mesh - Choosing

    In general, our website gives detailed descriptions and pictures of many copper meshes. For someone unfamiliar with wire mesh terminology, 2 mesh has two wires in each direction in a square inch. You could easily pass a pencil through the openings. 50 mesh is the size commonly used in kitchen faucets. An 80 mesh has an opening which will barely pass a human hair. A piece of paper is about three thousandths (.003) of an inch. Copper wire mesh samples are available and can be ordered online.

    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 using "Shower Power" TM or similar mild household cleaning product, 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.

    Copper mesh radio antenna ground plane (counterpoise)on fiberglass & wooden boats

    The function of a High frequency SSB ground plane on a boat is to couple the grounded half of the antenna circuit to the water that surrounds the vessel.

    You may achieve this coupling directly or inductively. Direct coupling uses a grounding plate, or other submerged conductor. Gordon West wrote a fine article on using metal parts as small as a thru hull fitting as a ground connection.

    You also may couple to the ground inductively through connection to a large metal surface, which is close to but insolated from the water. Examples of large metal surfaces include water tanks, encased metal keels, copper wire screen that is near the hull and below the waterline. connections from the transmitter or antenna tuner should be made using a copper strap about 3 inches wide the strap can be purchased at West Marine or formed by folding wire mesh into a 3 inch wide ribbon. Wire mesh is generally a 16 mesh.011 copper (a thin flexible screen) or a 22 mesh .015 wire diameter (a sturdy easily soldered screen) Attachment between the grounding screen and feed ribbon should be soldered and then protected against corrosion.

    A ground system on a vessel should be installed by a licensed marine electrician familiar with the issues involved which may include electrolysis, electrical shock hazard , sparking, damage to electrical and navigation equipment.

    Copper mesh samples - Samples

    Copper wire mesh samples are available and can be ordered online. Sample Policy TWP Inc. will provide samples for your testing and inspection. The cost is $8 per sample ordered (plus UPS Charges).

    • 8 mesh and coarser: Sample size is 6 inch x 6 inch
    • 10 mesh and finer: Sample size is 3 inch x 3 inch

    Copper Wire Mesh - Discs

    • 500 standard disc diameters
    • Same day delivery on stock items
    • Tolerance to +/- .001 inch
    • Special diameters in three days

    Our "Quot-O-Matic" Disc pricer can get you quick quotes by phone. To get a quote for copper mesh discs: Indicate disc diameter, mesh and quantity.

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      Specifications
    ImageClick on the camera below to see a photo. Mesh /
    InchNumber of openings per linear inch measured from the center of one wire to a point one inch distant.
    Wire Dia.
    InchThe thickness of the wire in inches.
    Opening
    InchThe distance between two adjaent parallel wires in inches
    % OpenThe proportion of open space in section of screen expressed as a percentage. Roll
    WidthRoll Width in inches
    MaterialType of Material in Mesh Part Number /
    Product DetailsThe Part Number for the Product
    2 0.0630 0.437 76 36 Copper
    2 0.0630 0.437 76 36 Copper
    4 0.0300 0.220 77 36 Copper
    4 0.0470 0.203 65 36 Copper
    8 0.0280 0.097 60 36 Copper
    10 0.0250 0.075 56 36 Copper
    16 0.0110 0.051 67 36 Copper
    16 0.0110 0.051 67 48 Copper
    16 0.0110 0.051 67 60 Copper
    16 0.0110 0.051 67 72 Copper
    16 0.0180 0.044 50 36 Copper
    18 0.0170 0.038 48 36 Copper
    20 0.0160 0.034 46 36 Copper
    22 0.0150 0.030 44 36 Copper
    22 0.0150 0.030 44 48 Copper
    30 0.0120 0.021 40 36 Copper
    40 0.0100 0.015 36 36 Copper
    50 0.0090 0.011 30 36 Copper
    60 0.0075 0.009 30 36 Copper
    80 0.0055 0.007 31 36 Copper
    100 0.0022 0.007 60 48 Copper
    100 0.0045 0.006 30 36 Copper
    100 0.0045 0.006 30 48 Copper
    100 0.0045 0.006 30 72 Copper
    145 0.0022 0.004 46 48 Copper
    200 0.0020 0.003 35 36 Copper
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    Minimum Order For Copper Mesh is $75 per item. Rolls are 100 feet in length.

    Swatch Policy

    TWP Inc. will provide swatches for your testing and inspection. The cost is $8 per swatch ordered (plus UPS Charges).

    FOB Point is Berkeley, California. U.S.A.
    Inquire about larger quantity pricing.
    Prices are in U.S. dollars per square foot.