The Kling-On Guitar Protector is an invaluable tool to me as a guitar dealer. Most of my guitars are new and are presented as such. The protection of the top is of utmost importance when presenting a new guitar to someone and the 5 to 15 minute test drive they give the instrument.
Guitar Finishes, Nitro-Cellulose
extracted from the Kling-On Web Site
For the last 15 years we have included warning labels, recommending removing our products when not playing the instrument,, with the packaging of all of our products. Today there are so many guitar makers and manufacturers it is virtually impossible to guarantee how are products will work with the multitude of guitar finishes now being used. We do have some general ideas regarding some of the various finish methods used today.
Nitro-Cellulose based finishes are the main types where care must be used with our products. These types of finishes continue to expel gases for many months after they are “dried” on the instrument. These gases will become trapped under our protectors and cause a reaction creating markings in the finish. For instruments with this type we recommend only applying our products during actual playing time and to be always removed.
Most French-Polish finished guitars work very well with our products. Protection for this type of finish was one of the main reasons our Kling-On guitar top-protectors were initially developed. UV-Dried finishes (i.e. Taylor Guitars) have also tested very well to work safely with our products.
As a rule we recommend temporary application during playing time only, for all instruments, with especially diligent adherence to this rule for new instruments. A number of guitar makers today employ both French-Polish and Nitro-Cellulose methods, sometimes even on one single instrument. We have even heard of a nitro-cellulose lacquer being applied with a French-Polish technique. It is best to first consult the maker of your guitar.