Also known as: GM+, GM-, GM.
GM stands for various terms. Discover the full forms, meanings, and possible interpretations of GM across different fields and industries.
A device for measuring the light reflectance of coatings. Different brands with the same description may have quite different ratings on the gloss meter. A standard scale for measuring the shininess or light reflectance of paint. Different brands with the same description such as semi-gloss or flat may have quite different ratings on the gloss meter.
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