Product category:
Gaskets, Seals and Screens
News Release from: Chomerics Europe | Subject: Cho-Shield 576 and Cho-Shield 579
Edited by the Electronicstalk Editorial
Team on 25 January 2008
Silver-loaded coatings screen out EMI
Two-component silver-filled epoxy materials provide both EMI and environmental protection.
Chomerics Europe has introduced two new electrically conductive epoxy coatings for shielding of electronic enclosures Both Cho-Shield 576 and Cho-Shield 579 offer shielding performance of up to 60-80dB in the 30MHz to 1GHz range
The two-component silver-filled epoxy materials provide excellent EMI and environmental protection, and may be applied to a target surface using either conventional spray equipment or a brush.
They are dry to the touch in less than one hour at room temperature and may be fully cured at elevated temperatures.
Cho-Shield 576 can be applied to glass, plastic or epoxy substrates and is suitable for copper/tin plating.
Cho-Shield 579 offers a low-VOC (volatile organic compounds) rating of 357g/litre, 40% lower than its predecessor.
Both materials have a volume resistivity of 0.06ohm/sq and a shelf life (at 24C) of 9 months.
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