Safety glass for ground transport

Production of the flat hardened safety glass (stalinite) is based on special thermal treatment, consisting in hardening the sheet glass by heating it in hardening the sheet glass by heating it in electrical furnace up to the softening temperature with the subsequent abrupt cooling with cold air at a definite pressure in the blowing grate. Set up in the hardened glass are uniformly distributed stresses which impart enhances mechanical strength and thermal stability. When broken, the stalinite is disintegrated into small-size fragments with dull edges which cannot be responsible for wound, bruise or cut.

Stalinite is employed for glazing the ground transport vehicles, tractors, agricultural and hoisting machinery used in the national economy in all climatic zones of our country. Stalinite is made of colourless polished, non-polished and heat absorbing (tined) glass. Stalinite is available of the high and first and second grade class. The articles of the high and first grades are intended for application in ground transport. Stalinite has a uniform thickness. The difference in the thickness of articles of the first-and –second grade polished glass is not in excess of 0.3mm, while that of the non-polished one is 0.4 mm. when shattered by a pointed tool, the articles disintegrate into not less than 40 fragments in any square measuring 50×50 mm and not less than 160 fragments in a square of 100×100 mm. Stalinite meets the world standards with respect to its technical level and quality.