General Information：[1]When exposed to air, the surface of copper pads will be dark, but the cooling effect is not affected. If you are still worried about it, you can sand the surface of this copper gasket with fine sandpaper.[2]Package content: 6Pcs x Copper Sheet;Dimension: 20mm x 20mm/0.79 inch x 0.79 inch(L*W);Thickness: 0.3mm/0.012 inch;Material: Copper[3]These copper gaskets use good quality copper material, they can withstand high temperatures of 160 degrees, are durable radiators, transfer the heat of the IC, graphic cards, or other machines to the copper sheets, and extend the service time of the components.[4]Use your adhesive(not included here) and attach them to any hardware you need them to help cool, and there will be a cooling effect.
This product would be ideal for applications requiring high thermal conductivity, specifically in CPU cooling systems for better performance and reliability.
