Electrical bonding surface and sealant
Electrical bonding surface and sealant
(OP)
Fay surface electrical bonding is achieved via contact of conductive surfaces.
One of types of BAC5117-6 says that sealants (certified per BMS 5-45 for example, manganese dioxide cured Permapol® P-5 modified polysulfide) should be applied between joined surfaces.
How does it work? Don't resin sealants act as water barrier and mainly dielectric substances? or these sealant are conductive (however per http://www.ppgaerospace.com/ they are not in conductive sealants lists).
Is it sqeeze-out sealant from the joint to provide contact of conductive metallic surfaces? Then how the fretting corrosion is prevented?
One of types of BAC5117-6 says that sealants (certified per BMS 5-45 for example, manganese dioxide cured Permapol® P-5 modified polysulfide) should be applied between joined surfaces.
How does it work? Don't resin sealants act as water barrier and mainly dielectric substances? or these sealant are conductive (however per http://www.ppgaerospace.com/ they are not in conductive sealants lists).
Is it sqeeze-out sealant from the joint to provide contact of conductive metallic surfaces? Then how the fretting corrosion is prevented?
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RE: Electrical bonding surface and sealant
We used it specifically for braided ground wire connections by cleaning the surfaces, attaching the hardware to defined torques, and then puttying over the connection afterwards. There was no sealant in the joint.
RE: Electrical bonding surface and sealant