Scratches on lenses, aka Scratched Glasses, are really best left up to a professional. The very surface of a lens is frequently the coatings. Only the finest of scratches can be removed from these gossamer thin layers. Plastic polishes in liquid form can be purchased from auto refinishing houses. These should be used only with a complete understanding of their grade of grit, and only with clean professional grade cloth to apply them. Generally, deeper scratches that require buffing wheels and consecutive grades of surfacing compounds should be left to a shop that does so routinely and knows exactly what the materials involved demand.
At FRAMEFIXERS.COM, we maintain a wide selection of testing chemicals to first determine exactly what the plastic is in an eyewear part we are attempting to resurface. Once again, even the testing is done in an inconspicuous spot so that any discoloration or reaction to the testing chemicals will not be seen. At this point, we move up to a higher strength of polishing by using paper or rubberized cloths that are available in numbered grits like 2200, 1800, 1200 etc. These are grits that will remove a deep scratch in plastic or in the plastic coating a metal eyewear component by removing more surface material. However, once the deep scratch is removed, the abrasion done by the higher grit material will has to then be polished to get the surface back to a glossy coat. Call for a free estimate today (1-866-FRAME-FX/1-866-372-6339). We can replace prescription lenses too.
If you are determined to try to remove scratches from your lenses at home I’ve assembled the best advise possible. Having mastered some skill using a dry jewelry polishing cloth on plain metal an plain plastic eyewear parts from our earlier post, you may be ready to improve the scratched surfaces where the depth of the abrasions are too deep for a simply polishing.
Even in these simple application, you need to be very careful to determine is the surface you see goes all the way down to the center of the abraded component eyeglass part. Sometimes, surface color like a glossy red may only be a thin skin over a base material of another color. This is why the test area technique is critical and must never be skipped.
Notice that up to this point, we have only been working on simple solid colors in plastic and metal and only using dry fine polishing grades, and only on the body of the frame.
Assuming that your scratch is in a high -relief area like the outermost corner of a frame front, and the scratch is deep enough to warrant more than a dry fine polishing cloth, you should acquire a very fine liquid plastic polish like those used to clarify headlight lamp covers. This swill require that you use a technique called “blocking”. A good quality thick body cloth will be stretched over a rubber or wood form and drawn tight. The liquid polish will then be spread on the surface of the cloth, and the polishing of the scratched area of the frame will be done in careful and deliberate strokes paying close attention to the area being touched by the treated cloth surface. This technique requires acquiring considerable skill before one has the balanced use of speed and strength to obtain the desired results. If you are a collector of eyewear, you may benefit from acquiring some “test” frame on which to practice before gong on to those which are more valuable.
Good luck with your scratched glasses!