![]() A satin finish (right) has a softer, less reflective sheen, allowing you to often feel the wood grain. A gloss finish (left) looks shiny and usually feels smooth and glass-like to the touch. For example, in recent years there has been a trend toward UV-cured and water-based finishes, both of which reduce chemicals released into the atmosphere during production.įig. In some cases, the switch from nitro is a way to save production costs, but builders can also be motivated by a desire to spray materials that are less harmful to the planet and workers. ![]() These include urethane, acrylic, polyester, and epoxy formulations. To combat this, many modern guitar builders and manufacturers cover their instruments with finishes that are more impervious to environmental conditions. 1), especially when the instrument is exposed to sudden temperature and humidity changes. But nitro is also prone to checking and cracking over time (Fig. Vintage instruments typically sport nitrocellulose lacquer-a thin, hard finish that lets the wood resonate well. There are many different types of finishes used on stringed instruments. When you add in environmental issues, such as dust and pollen, it's no wonder our guitars get so filthy.Ī little background. Sweat contains water, acids, salt, and several minerals that are corrosive to finishes and hardware. In addition, if your sweat has a high acid content (low PH balance), it can actually cause the finish to deteriorate, especially where you rest your arm. This causes the finish to develop a hazy film and become discolored. Over time, sweat, dirt, and oils build up on the guitar's finish and slowly break it down.
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