Some examples of stencils in blasting include lettering on hard stone surfaces found in memorials, foundation stones of buildings, and gravestones (gravsteingrossisten.no). Rigid materials such as granite can be accurately and, of course, permanently engraved using blasting techniques with stencils. Accurate blasting of glass patterns can also be made in this way, producing decorative glassware, windows, and patterned glass panels.
The term stained glass is used for a wide range of art techniques, and sandblasting is one method of including textures and additional interest to many projects. Sandblasting will achieve a distinctive grazed or frosted appearance and can be used for an entire project or just as a particular piece of the work (https://www.gravsteingrossisten.no/pages/gravstein-trondheim). The technological development in the sandblasting industry, in the equipment itself, the materials used, through to laser cut stencils, have, in many instances, made this process more efficient in terms of time and cost than some of the alternative methods.
The blasting process can well create a dangerous environment for those near the blasting process, the main problem arising from the dust and detritus generated during the application. For example, sand is now most unpopular as a blasting material, causing very harmful lung damage.
Protective clothing, breathing equipment, and enclosed areas or rooms with adequate ventilation should be used (https://www.gravsteingrossisten.no/blog/gravstotter-ma-sikres-godt). A constant supply of clean air is vital in the working area, and any specialized breathing equipment should be thoroughly checked before and after each use to see a steady airflow produced.
The kit should only be taken off when the worker has moved well clear of the area to avoid breathing any contaminants which remain hanging in the air for a considerable time.
It is always good practice to seek professional assistance when considering the use of blasting for any purpose. This advice, as you would expect, will eventually provide a superior result that you will be delighted with on your gravestone.