is there any way of finding out how to mix paint to ral colours? are they based on a certain manufacturers colour? or are they just standard fibreglass mixing colours? cheers

RAL is an international standard for a set of colours, whether used in paint or gel coat. Most car paint suppliers will be able to make up paint to RAL codes. I've been asked to paint things as different as trucks, industrial awning cases and double glazing frames with these codes. A bit different to the car bodywork we normally do!

See here for more info. http://www.ralcolor.com/

HTH