It requires its own unique process, however, because glass is a poor electrical conductor in comparison to metal, the traditional powder coating substrate.
[2] When applied with a dual-coat method, powder coating techniques on glass provide an opaque shield against the light's effects.
After cleaning, an opaque base coat of powder is applied to the glass substrate as the initial, most important layer of UV protection.
Assuming the object is properly cleaned, this includes: 1) Attraction – achieving the electrostatic charge; 2) Gelling – transforming the powder from dry to wet; 3) Flowing – melding or cross-linking the coat applications together for a strong, hardened protective casing; and 4) Curing – heat drying the powder coated product to arrive at its finished form.
It is possible to powder coat a wide variety of glass forms and dimensions, including cylindrical, oval and square shapes, to name just a few.
Glass items compatible with powder coating include bottles and containers, decorative pieces, dinnerware, picture frames and more.