Little Hawk and Guest,
Thanks for the replies. I can't put it out in the sun. I'm not sure what "dank" is. Thunder showers have been passing through and it's been raining hard. It's not cold, though (20-25ºC). I'll give it another 24 hours, if it is still tacky tomorrow, I'll try the hair dryer. I'm just worried that it will never dry and I'll have to junk the entire project and start again, or give up.

rags