No, if you wish to keep the coloured paint appearance you would need to use a paint system and not a clear varnish. In order for us to be able to advise which product/system would be best for your doors, please provide us with an image of the door(s) (if possible) and as much information as possible for the below points;

• Level of Fire Protection required? (i.e. 30min, 60min, etc.)
• Style of door? (i.e. panelled, ledge & brace, etc.)
• Solid or hollow core? - (please note we cannot provide anything to upgrade hollow doors)
• Door size? (height and width)
• Door thickness? (include thickness at thinnest point (i.e. panel))
• Number of doors to do?
• Clear or coloured finish required?
• Bare or previously painted?