Looking for a UV oil for cedar wood lining .

While cedar can be painted, it is not recommended unless it is extremely weathered as it requires heavy preparation and is still prone to failure. It is a highly acidic oily hardwood and is so naturally durable it prevents proper adhesion of paint and wood stain products. In addition, if cedar is new and un-weathered resin bleeding will be an issue. 

If there is still a requirement to paint, we recommend using a non-filming forming coating like Valtti Color

• Ensure the surface is degreased thoroughly first with Tikkurila cleaning agent. Ensure you use a white rag and keep degreasing until no residues are present on cloth 
• Also ensure the surface is degreased with cellulose thinner to remove the surface oils. 

To maximise UV protection this product must be tinted, as a general rule darker the better.