Review on Blue Magic TR 3 Resin Glaze by Reginald Holman

TR-3 offers good protection for older unpainted cars and sewing machines, but is not suitable for painting. Several reviews on Revain.com mention a red label on the cap indicating it is not suitable for clear coated vehicles. The general recommendation on a cap warning label I've seen at your local auto parts store is that you try it on a small area of the car with a clear coat to see if it works without damaging the finish. Otherwise you might want to use something else on top of clear coats. If the decal is still coated on sewing machines such as the Singer Treadle Model 27 or 66, do not use the decal as the TR-3 may damage the decal. It works great on the metal part of the car but use it sparingly. It can be difficult to take off, even if you do one section at a time. Delete, repeat - several times.