17.Ferro Frit 3249

M.P./°F 1900
Silica/Alumina ratio: 5.4:1
Equivalent Molecular Weight: 274.200

Molecular Formula of Ferro Frit 3249:

	CaO 	0.171 	Al2O3 	0.357 	SiO2 	1.920
	MgO 	0.829 	B2O3 	1.140

Percentage Analysis

	42.10 % 	SiO2
	13.30 % 	Al2O3
	12.20 % 	MgO
	3.50 % 		CaO
	28.90 % 	B2O3
	_____________________
	100 % 		TOTAL

Comments: 

	4.0 x 10-6 coefficient of thermal expansion (50-450° C)