On 10/09/2020 22:07, Stephen Duppe wrote:
I think the 123 contains chalk. Could be that they wouldn't be
in breach of the Trades Descriptions Act if they marketed it as "gesso"?

FWIW I was at Aldi this afternoon, they have "chalk paint" in litres at
a fiver. No idea what it's like, can't remember who makes it, you could
have a look (or not!). Colour: "Clotted Cream".