skippydiesel Posted October 19, 2022 Share Posted October 19, 2022 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.. 1 Link to comment Share on other sites More sharing options...
jackc Posted October 19, 2022 Share Posted October 19, 2022 Aluminox (sp) is your friend 🙂 Link to comment Share on other sites More sharing options...
onetrack Posted October 19, 2022 Share Posted October 19, 2022 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. Link to comment Share on other sites More sharing options...
Yenn Posted October 19, 2022 Share Posted October 19, 2022 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. 1 Link to comment Share on other sites More sharing options...
jackc Posted October 20, 2022 Share Posted October 20, 2022 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…. 1 1 Link to comment Share on other sites More sharing options...
Kyle Communications Posted October 20, 2022 Share Posted October 20, 2022 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 1 1 Link to comment Share on other sites More sharing options...
onetrack Posted October 20, 2022 Share Posted October 20, 2022 It's still readily available - Utilux P/No UTIH2397/1. https://www.repelec.com.au/grease-joint-compound-4c-aluminium-250gm-tube.html https://www.rexel.com.au/are/category/Hardware/Cable-Resin/Jointing-compound/UTI-350-GRAM-JOINT-COMPOUND/UTIH2397-1/p/10284056?showBackLink=false And so is Alminox ... https://www.rexel.com.au/are/category/Hardware/Cable-Resin/Jointing-compound/SEALING-COMPOUND-ELECTRICAL-JOINT-ALMINO/DULDULALM325G/p/10279276 1 Link to comment Share on other sites More sharing options...
Kyle Communications Posted October 20, 2022 Share Posted October 20, 2022 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 🙂 1 Link to comment Share on other sites More sharing options...
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