Agreed, heat is essential. I have also had good results (but more for a speckled effect rather than wrinkled) by heating metal parts on top of a paraffin stove and then spraying lightly with an ordinary satin black acrylic aerosol. Remove them from the stove first, of course

My MGB dash was done in the car using masking tape.l heated the dash with a hairdryer and a good result with the finish.

Bob

I will dig out of the garage today and let you know.

It was best to remove most of the old paint if you can as my part by the rev counter you can see a slight imperfection, but only if you know it's there.

Bob

Bob is absolutely correct. The object being sprayed should be warm if not hot. I ignored this when I resprayed my Midget dash, with black crackle paint. Result a disaster!

Cleaned it off and sprayed on a heated dashboard and the results were very good indeed. As I said in another post, It pays to read the instructions!

Andrew..

I used this sort of paint about 15 years go. First attempt was a failure – no wrinkles. My wife suggested I need to get a pension book for it (ha ha). Then I read the intructions, and got results. But there is a difficulty: the wrinkling starts as the surface skins, and is prompted by small irregularities which might be scratches in the surface, bits of old paint not removed, and dust in the atmosphere. Best results are obtained by regular use, so perhaps there does need to be the right sort of dust in the atmosphere?

Cheers, Tim