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Usage of Cranflex Gasket Paper Material outdoors

Usage of Cranflex Gasket Paper Material outdoors

Usage of Cranflex Gasket Paper Material outdoors

(OP)
Dear Friends,
we have an installation wherein intend to use a galvanised iron clamp outdoors to fix copper tape with its base saddle on the roof ridge ( see picture attached) .For preventing galvanic corrosion we intend to use a cranflex gasket at brass to G.I. junction ( as in picture) and to apply Penguard universal paint treatment for the G.I. clamp.Kindly advise the solution will endure the outdoor climate and no corrossion ( chemical and galvanic both)is resulted.

A.Climatic conditions
max summer temp : 55 deg celsius
average winter min temp : 0 deg celsius
Max sun radiation temperature : 84 deg celsius
rain : yes
dust : yes

B.Analysis of Junctions
Junction 1: G.I. to G.I. - index 0.0- 0.0 = 0.0 volt ( safe)
Junction 2: G.I.( paint treated) to S.S. - index ??
Junction 3 : G.I.( paint treated) to S.S. - index ??
Junction 4 : Brass to S.S. - index 0.4-0.5 = 0.1 volt ( safe)
Junction 5 : Brass to Copper - index 0.4 - 0.35 = 0.05 volt ( safe)

Brass to G.I. (paint treated) - Cranflex gasket used as in picture.

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