Personally, I'd tell her not to be daft about doing them in different colours, get her to agree on one and go out and buy some proper outdoor paint.

AFAIR you can dilute gloss down and put through an electric spraygun.

Like one of these.

Yes, you might not even need to thin it

Originally Posted by rydalong

Daughter rydalong has some old wooden garden furniture which she wants to brighten up ...

If it has alot of nooks and crannies like you say then you need to sand/clean them first or the paint will not stick, unless it is old clean stored in garage not old left in garden and mossy

Don't try spraying it unless you are handy with a spraygun or don't care about the finish quality, thick paint will tend to ripple droop if you apply it unevenly as it dries, in my vast experience of trying this once the first time I ever sprayed anything at all and covering the garden in a white mist. It was so pretty, looked like it had been snowing - almost, the furniture got binned though