May be single (see Tears) or multiple. Multiple bubbles may be created on the surface of the glass batch by accident and used or by plunging a piece of wet wood or a potato into the molten glass, then gathering and using the bubbly glass. Steuben created fine bubbles by rolling the piece in a carbonate then gathering over the chemical as it decomposed to gas, making bubbles. Bubbles may also be made by grooving the glass with a metal tool or optic or rolling the piece on points of nails and then gathering over the holes which hold air.
Air pockets that have formed in the material of the component. Bubbles may vary in size.
the entrapment of air in the finish.
Air trapped in the coating due to surface tension. Gases or water vapor trapped under a solidified film.
Gas trapped inside the part.
Air or solvent trapped in a paint film caused by poor atomization during spraying. Air trapped in body filler caused by excessive agitation.
In float glass and obscure glass , a gaseous inclusion. In laminated glass, a gas pocket in the interlayer material or between the glass and the interlayer.
In laminated glass, a gas pocket in the interlayer material or between the glass & the interlayer. In float glass, a gaseous inclusion greater than 1/32" in diameter.
Gases in the molten glass while melting in the “pit” get trapped. The hotter the molten glass along with the purity of the quality of the glass can greatly diminish this problem. While gathering the molten glass those bubbles will be transmitted to the actual art piece itself. Some artists do like the bubble effect and use them in their works by forcing a bubble. Installing bubbles may me made with a sharp object being punctured into the molten glass or countless other methods.
Gases suspended in solution.
Bubbles are spherical or tear-shaped bubbles of gas captured in glass stones. Bubbles can also be found in resins (like plastics and amber), and much less-frequently in minerals (like quartz, emerald, and topaz). Looking for bubbles is one way to determine if a gem is glass or a gemstone.
Air pockets trapped within the glass. Quite common in early glass. Small bubbles are frequently referred to as seeds.
Air bubbles in a drying paint film caused by excessive brushing during application or by over vigorous mixing that results in air entrapment.
Air bubbles in water generated by the action of breaking waves, the impact on water of spray droplets, and by biological processes. They range in size from some centimeters down to microns. Small bubbles in particular can be carried down to considerable depths, as their limiting rise velocity is smaller than the ambient vertical water motions, and provide a significant contribution to air–sea gas flux.