Specifications

Cast-iron Enamel Fritsenameling on surface of cast iron, as called Wet-way Coating enamel first, cleaning the surface of earthen

Cast-iron Enamel Frits
Reference No.	Description	Expansion	Firing	Application
		Coefficient (107)	Temperature (°C)
UNI-125	cast iron black enamel	334.2	760-780
UNI-126	cast iron black enamel	332.4	760-780
UNI-622	thick cast iron black enamel	314.4	750-780
UNI-623	thick cast-iron black enamel	271.4	780-800
UNI-625	cast-iron black enamel	244	760-780
UNI-308	cast-iron transparent enamel	332.1	760-780
UNI-1271	thick cast iron black enamel	274	750-780
UNI-1308	cast-iron transparent enamel	283.1	760-780
UNI-1309	cast-iron transparent enamel	335.5	740-760
UNI-2700	cast-iron opaque enamel	289	780-800
UNI-2707	acid resistant cast iron black enamel	305.6	780-800
UNI-2708	cast-iron white cover coat	302.4	800-820
UNI-2709	acid resistant cast-iron white cover coat	310.2	820-850
Note: enameling on surface of cast iron, as called Wet-way Coating enamel first, cleaning the surface of earthen bowl after anneal .
1 Milling additon ratio for cast-iron black enamel:
frit	100	clay		5-7
quartz powder	0-5	borax		0.5-0.8
sodium nitrite	0.2	black pigment		2-5
water	50-55 ml
note: adding 10-20% quartz powder in acid resistant black enamel
frit slurry fineness	0.5-1.0g/150mesh.100 ml	specific gravity		160-170g/100ml
2 cast iron opaque enamel(sub-opaque enamel )
frit	100	clay		5-6
borax	0.5-0.8	aluminium oxide		2
water	45-50ml
note: sub-opaque enamel consist of cast iron opaque enamel,with same milling addition ratio.
frit slurry fineness	1-1.5g/150¡¤100ml	specific gravity		160-165g/100ml