If you have wood surfaces that need refinishing, or you simply wish to change the color of wood furniture, flooring or another surface, then tinting varnish may be a good option. Instead of staining a surface, waiting for it to dry and then adding a clear coat on top for protection, applying tinted varnish allows you to get both tasks done at one time with impressive results. The process of tinting varnish is not difficult, but it takes a little knowledge of color and patience to get the best results.
Choose the color you would like the item to be when you are finished with the task. Making your own tinted varnish requires some forethought about the exact look you wish to accomplish. You will need to add oil stain to a clear oil varnish to create the exact color you want. Natural wood colors can be accomplished by adding colored oil stain to the clear varnish. Mahogany, for example, can be made using burnt sienna and maroon oil stain to the varnish. Adding ochre and burnt umber stains can create antique oak. Dark cherry only requires the addition of burnt sienna, while the addition of yellow ochre will lighten the cherry hue. The possibilities are limited only by your imagination, but be sure you like what you have before applying it.
Select the colors of stain you wish to use for tinting and pour no more than one to two ounces of color into a gallon of varnish. Adding more than this small amount to a gallon will make the varnish opaque and the wood will look painted instead of stained. Mix the stain and varnish together by stirring vigorously, or close the can and have it shaken to thoroughly combine it. Remember that the color you create will have different effects on different color wood surfaces, so keep in mind that you can go darker with a wood, but not lighter and the original color of the object you are staining will have a serious impact on how your new varnish appears.
Brush or spray on the varnish in thin coats, allowing for each coat to dry before another application. If you put the varnish on too thick with a brush it will leave brush marks. You should also use a very soft bristled brush for application. Each coat will darken the results; so only apply what is needed to accomplish the desired color.