maybe cover half in a clear coat first, to see if that preserves the colour, as well.
Printable View
Wot Swanny sed.
Thinking the coat would have to be UV resistant though, so you will need a Hazmat suit :p
I should have outlined what I am going to do.
I will let "the stain" dry for a day or so, then coat half with a water based poly-urethane ('coz that's what I have to hand).
I will then leave it in a place with much sunlight, but out of direct sunlight for a couple of weeks. Finally, full sun for a week.
So an update.
In simple terms - forget it.
After a couple of weeks of drying the beetroot stain had faded a small amount.
When I applied the poly over half of the stain, it lifted most of it onto the cloth.
After a few more weeks in the shed (out of direct sunlight), the colour has faded almost completely.
I don't think it is permanent enough on wood - a white shirt maybe different...
Good on you for giving it a go and taking one for the team Col.
I just finished applying an inkjet ink colour to a flame top Tele and was worried that using a rag for the clear top coat would soak up too much of the stain colour and just used a paint brush to apply the first coat of TO. Worked well as did the same approach on both of my Explorers over DT a few months ago as I was also worried how ragging would affect the outcome too.
Good way to get down the first coat that usually soaks up plenty without needing to rub it on. I have found that subsequent coats go on much easier too.