Rutland Windgen tailfin rusty: How to strip old coating?

[RIBW]

Dear All,
My trusty Rutland 913 has started to rumble again and, this time, I have decided to refurb it myself (as I currently need a 'project' to do at home).

The tailfin started rusting 2 years after renewal and was unsightly after 4 years, so I decided to take it back to metal and repaint it with something more resistant than the current finish (powder coating?). Rust (about 25% of the area) has been sorted but neither a Blowtorch nor Nitromors has had an effect on the main area of the old finish with clean metal under it.

A question to Marlec resulted in an offer of a replacement tailfin, which doesn't help with the rust appearing.

Does anyone have any experience or advice on how best to proceed?

I suppose I could have a new one made up in stainless.

Thanks in advance
Bob

 

[LadyInBed]

Cheaper and easier to make it in aluminium.

 

[Vegable]

I used a flap disc on an angle grinder to strip mine. Then I painted it with Galvafroid, then a couple of gloss top coats. Having got it all nice and new looking, the winter gales knackered the whole unit so I threw it away in a fit of pique and went solar. (In truth the best thing I ever did in fact.)
However I still have the tail fin if you want it. I didn't want to throw that away. It's a nice bright red one.
You could use plywood instead of metal and paint it the same colour as your spray hood etc., etc.
Mike

 

[RIBW]

Mike,
PM sent,
Cheers
Bob

 

[RIBW]

Cheaper and easier to make it in aluminium.

Mild steel does seem an odd choice for the original tailfin and I have been wondering why they didn't use stainless or aluminium.
Could aluminium be too light? I don't see how, because the magnets in the front end are so heavy that difference in the weight of the tail would be marginal.
Thanks for the suggestion.
Cheers
Bob

 

[TQA]

Sand shot or bead blasting is the way to go.

Jobbing machine shops and motorcycle repair shops often have a standalone unit.

But I would replace it with an ali one.