Invicta anodes from Solent Anodes - very cheap, any experience with them?

[EugeneR]

Solent Anodes is based in Southampton and seems to be selling 7.5kg Invicta anodes for £38.64. They do not come with backing pads or nuts, which is a few pounds extra.

However, they still seem to be less than half the price of MgDuff's nearest equivalent which sells between £100 and £140 at places like Marine Superstore, Force 4, etc.

Does anyone have any experience with Invicta anodes?

 

[vyv_cox]

Is the composition given? MGDuff claim trace elements that improve the life and may give better results. Doubt that could justify three times the price but worth knowing.

 

[VicS]

Yes

On their website http://www.invicta-anodesltd.co.uk/index.html

 

[EugeneR]

So, are their trace elements good, bad or pretty much the same... as the resident chemist, Vics, any suggestions ;-)

 

[VicS]

So, are their trace elements good, bad or pretty much the same... as the resident chemist, Vics, any suggestions ;-)

MGDuff's Zinc anodes:

Specification Code US Mil Spec 18001K

Composition
Iron Fe 0.005max.
Cadmium Cd 0.025-0.07
Copper Cu 0.005max.
Aluminium Al 0.10-0.50
Lead Pb 0.006max
Others total 0.10max
Zinc Zn Remainder


Invicta Zinc anodes

us mil spec 18001k

iron 0.005% max
cadmium 0.025-0.07
copper 0.005 max
aluminium 0.10-0.5
lead 0.006 max
others 0.1 max
zinc remainder

 

[EugeneR]

You were quicker than me. Yes, both are to same spec (MgDuff also has Fe not listed above).

I have gone ahead and saved some money

Thanks

 

[VicS]

(MgDuff also has Fe not listed above).

I wonder where the iron went. I copied and pasted the figures. Poor quality paste !

 

[vyv_cox]

I wonder where the iron went. I copied and pasted the figures. Poor quality paste !

At that level it's an impurity that they refine out. Certainly won't contribute to any protection.

 

[VicS]

At that level it's an impurity that they refine out. Certainly won't contribute to any protection.

Oh that's what happened? It was refined out? There I was thinking I'd made a mess of copying and pasting the figures

 

[vyv_cox]

Oh that's what happened? It was refined out? There I was thinking I'd made a mess of copying and pasting the figures

Unlike a certain politician, I have no concerns in saying 'slag' in this context.