Grind glass bottles without destroying them

The grinding of glass bottles is only possible to a limited extent. First and foremost, sharp cut edges should be rounded off when sanding. Engraving is technically a subtype of grinding. It is almost impossible to sand down a paintwork, for example, without destroying the glass bottle through a stress break.

Partial sanding and edge sanding

Engraving glass bottles involves partial grinding. The other common grinding variant concerns cut edges that arise when cutting bottle glass. These razor-sharp edges are the result of both transverse and longitudinal cuts on the glass bottle.

  • Also read - Painting and remodeling glass bottles
  • Also read - glass bottles partially or completely deform
  • Also read - Label glass bottles by engraving

If anyway with a dremel has been cut, an essay change offers. With a grinding wheel, the cut edges can be flattened, rounded or beveled. When grinding, heat is always created, which acts on the tension conditions of the glass bottle. Accordingly, an accompanying cooling of the bottles is required. This in turn increases the risk of voltage and cracks.

Heat instead of loops common

An alternative to grinding sharp cutting edges is heating. With a hot flame, for example, a bunsen burner "run " the heated edge corners to a dome-shaped rounding. From the temperature of about 600 degrees Celsius this grinding set, which also causes no fine splintering.

Hard materials must be selected as abrasives for glass bottles. Grinding heads set with diamond or corundum splinters, such as those used on engraving machines, are common. In the industrial sector, laser technology is used to grind glass bottles. In the majority of cases, deformation techniques and melting of different intensities are preferred to mechanical grinding. The "voltage management" can be implemented more precisely and without damage using temperature-based methods.

For smaller individual projects, sanding sponges mixed with sanding particles can also be tried on sharp edges. However, this often causes scratches on the glass surfaces around the cut edges, which are difficult to polish out again.

General basics for grinding glass bottles

  • Always consider alternatives and prefer them to grinding if possible
  • Always cool when grinding, without causing large temperature jumps
  • Fine glass splinters are created with every grinding and must be "secured "
  • There must be expected at grinding at any time with the break of the glass
Tips & Tricks If you want to clean scratched glass bottle surfaces, do not work with abrasives, but move in the area of polishing.