Thicknesses and dimensions
The CTE of BOROFLOAT® 33 is 3 times lower than the CTE of Soda-lime glass.
Quantity of Na2O released from BOROFLOAT® 33 compared tosoda-lime glass depending on the temperature after 16 hours.
Compared to soda-lime glass, BOROFLOAT® 33 has a significantly higher hydrolytic resistance, because the number of sodium ions in the glass network is significantly lower with BOROFLOAT® 33. The few sodium ions are also more strongly bound.
Mechanical resistance to penetration by a pointed object – BOROFLOAT® 33 is particularly resistant due to its glass structure.
PEI Abrasion Test
Transition from sliding abrasion to erosion (grain fill, loose grains) – BOROFLOAT® 33 is particularly abrasion resistant.