Pemco Frit P-878

M.P./°F 1500

Equivalent Molecular Weight:  261.140



Molecular Formula of Pemco Frit P-878:

	Na2O  0.320	B2O3   0.639	SiO2  1.879
	CaO   0.680	ZrO2   0.373

     Percentage Analysis

	 43.21 % 	SiO2 
	  7.60 % 	Na2O 
	 14.60 % 	CaO  
	 17.00 % 	B2O3 
	 17.60 % 	ZrO2  
	_____________________
	100 % 		TOTAL

Comments: 7.9 x 10-6 coefficient of thermal expansion (50-450° C) I.F.P.
  °C = 650 Melting Range °F = 1500-1590