hi there PVS - - you should know that the only reason we are being friendly is to get porter off you when we meet at the next model railway expo! welcome aboard!
Thanks for that mike-there was no label on the bottle I used, but I will try ammonia on an old loco and see. I will not use it again either but that leaves varnish...then we are in trouble if you need to remove that!
that number is ringing through to a message service. most likely manned at opening time....give it a ring before you go. and let us know how you get on...(nosey bunch arnt we?)