1 Highly resistance to thermal shock and heart 2 Resistance to water,strong acids,alkali and saline solutions Coefficient os mean linear thermal expansion3.3·10-6K-1Transformation temperature525°cAnnealing point560°cSoftening point825°cworking point1260°cDensity at 25°c 2.23g·cm-3 Maximum short-time working temperature is 500°c CF Borosilicate Glass 3.3 is highly resistant to water,neutral and ...