MELTS AT LOWER TEMP

IT EXPANDS MORE THAN HARD GLASS

EXAMPLES : GIFT ITEMS

THICK AND 4 TO 5 TIMES STRONGER THAN

SOFT GLASS

EXAMPLE : USED IN ROOFING

FLINT GLASS IS OPTICAL GLASS THAT HAS

RELATIVELY HIGH REFRACTIVE INDEX

EXAMPLE : ELECTRIC BULBS AND SPECTACLE

GLASSES