Stainless steel in aluminium.

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Nicholas123

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I am about to drill a load of holes in the top of my mast & insert the nut type things that hold spokes in wheel rims so that I can install spikes & deter Cormorants & other birds from landing & doing damage but I am concerned about the type of corrosion that I have seen between stainless steel & aluminum in other fittings.What would be the best way to overcome this?

Sorry if this has been covered before.
Nicholas.
 
Those spoke nipples are often plated brass, a bad idea with ali.
How about mounting the spikes/spokes in a block of ali or a bracket of some sort, mounted to the mast with one of the existing fasteners up there?
I either use duralac, or for bolts in threaded holes a copperslip type grease if I will want to undo it easily. Alternatively, use loctite on threaded fasteners.
 
Spikey things

How about a load of Tie Wraps (cable ties)
Attach them to anything, even each other, cheap, corrosion free and easily replaced.

I saw one instalation which looked like a dozen threaded onto one large one which in turn was wrapped round a mast. There may have been a second large one above which encircled the smaller ones and kept them vertical
Looked like a palm frond head dress!
 
sarabande said:
I don't know the size of the base of the device, but modern adhesives have very high holding power. The advantages of not drilling holes in the mast and then spending the next ten years worrying about corrosion are substantial.

Worth a quick call to e.g. Sika ?

http://www.sika.com/en/group/Aboutus/innovation/products_and_technologies/structural_adhesives.html


Or Structural Adhesives ?

http://www.structuraladhesives.co.uk/
Click to expand...

Don't really like the idea of using 'glue' & don't have any plastic pointy things so for now I shall continue considering the alternatives.Thanks for the suggestion.
 
lw395 said:
Those spoke nipples are often plated brass, a bad idea with ali.
How about mounting the spikes/spokes in a block of ali or a bracket of some sort, mounted to the mast with one of the existing fasteners up there?
I either use duralac, or for bolts in threaded holes a copperslip type grease if I will want to undo it easily. Alternatively, use loctite on threaded fasteners.
Click to expand...

I think the spoke nipples are stainless steel but I may try sawing one in half to find out for sure.
The ali bloke suggestion is something I shall give some thought to but I have already got rid of one bracket & am not keen to add more.Maybe combined with saraband's 'glue' it could have something,thanks.
 
savageseadog said:
No way would I drill the mast for that. I would suggest some sort of plastic spikes/rods
Click to expand...

I would not actually be drilling the mast so much as a flange round the top.It dos'nt have any structural input & is more like a frill.
Even if it corroded I don't think it would effect anything much.Existing self tappers that I could'nt remove or broke off were much more messy......I am not convinced plastic spikes would last.
 
Robby said:
How about a load of Tie Wraps (cable ties)
Attach them to anything, even each other, cheap, corrosion free and easily replaced.

I saw one instalation which looked like a dozen threaded onto one large one which in turn was wrapped round a mast. There may have been a second large one above which encircled the smaller ones and kept them vertical
Looked like a palm frond head dress!
Click to expand...

Are you sure I would'nt get a parrot nesting up there? ;)

An interesting idea that I shall consider but I suspect Cormorants would'nt be deterred.They may even like a comfy bed once they had squashed them down flat.
 
Robby said:
How about a load of Tie Wraps (cable ties)
Attach them to anything, even each other, cheap, corrosion free and easily replaced.

I saw one instalation which looked like a dozen threaded onto one large one which in turn was wrapped round a mast. There may have been a second large one above which encircled the smaller ones and kept them vertical
Looked like a palm frond head dress!
Click to expand...

I have decided to try something like that,thanks very much for the suggestion.Brilliant! :)
 
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