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Posted

I use a smear of dielectric grease between all my metal to metal contacts. Lots of different suppliers out there.

 

I dint live near the coast ,so that may be why my aluminium stock & builders malleable aluminium flashing doesn't seem to corrode OR its treated somehow to inhibit corrosion..

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Posted

Jack, tell us more about this Aluminox product, I can find little on the 'net about it, is it a paint or coating process? The name seems to be used for a lot of unrelated areas.

Posted

The corrosion in aluminium is not the corrosion we think of such as with steel. It is a rapid corrosion of the surface which protects the bulk of material from further corrosion. Basicly a thin film of aluminium oxide. This interferes with electrical contact. We need to bring aliminium surfaces together rapidly after abrading the surface or using washers which cut into the surface. It is that thin film which causes the loss of connection.

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Posted
16 minutes ago, onetrack said:

Jack, tell us more about this Aluminox product, I can find little on the 'net about it, is it a paint or coating process? The name seems to be used for a lot of unrelated areas.

Sorry, a product misspelling on my part, been using this stuff on Ham Radio antennas for years….

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Posted

Aluminox also was used by the power distribution companies when connecting alu clamps to the copper overhead mains and visa versa..that when I first came across it then used it exclusively in my radio busiess for all antenna assembly...fantastic product..hard to get now though but seach for aluminium jointing compound

 

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Posted

Thanks Onetrack... I havent chased it as I still have a heap of it from back in the old days :)..my stuff is probably more than 25 years old and still perfect. It should be in everyones workshop 🙂

 

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