Page 75 - GETELEC catalogue US 2020

NBC (Nuclear, Bacteriological, chemical)

resistant moulded seals

Our bi-material moulded seals for NBC applications comprise a conductive layer secured to a
fluorocarbon sealing layer. 2

The conductive layer is a silicone loaded with metal particles (silver plated aluminum, silver
plated copper, or silver) ensuring excellent electrical continuity. Material used meet the
requirements of MIL G 83528 standard.

The fluorocarbon sealing layer has he following
properties :

- Very good mechanical properties : tear resistance,
compression set, hardness range to suit that of the
conductive produtcs.

- Excellent resistance to chemicals (acids, solvents,
hydrocarbons, oils ..)

- Very low gas permeability. Very good hydrolytic stability
- Excellent resistance to climate-related attack (oxidation,
ozone, sunlight-related weathering)
- Excellent bacteriological resistance

- Excellent flame-resistance
- Very wide working temperature range (-25°C to +200°C).
Very low working temperature (down to -40°C) for
some grades.

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