We cannot guarantee that our paints will adhere well to a paper veneer - we have no idea what the actual material is or what adhesives were used to apply the veneer to the surface. The resins and additives in our paints may break down the adhesives used for the veneer.
General Finishes Milk Paints have an excellent adhesion factor and might well be successful. If you can abrade the surface with sandpaper, you will increase your chance of success.
For best possible results, follow these steps:
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Test your procedure on a hidden area first and let cure for 7-10 days. Then further test the finish by duplicating normal and tear such as washing, scrubbing, scratching, etc to see if the finish has bonded to the surface.
If your finish adheres well, you should be ok to continue. If the finish comes off easily, we recommend trying a sealing binder primer before you apply the paint, such as XIM 400 White Primer Sealer Bonder or whatever is recommended for paper veneer at your local hardware or paint store. Again, TEST!
Apply product directly over the primer and seal with 2-3 coats of GF Top Coat. We recommend using General Finishes High Performance Topcoat over Milk Paint because it's water-based and dries clear.