WD40 is also great if you go sand boarding, much easier & better than wax, be careful what you use isn't too strong or it'll eat the foam inside the tongue, I'd seriously try Sard, I've removed beetroot & red wine stains with it but I think you are probably a bit late.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.