What Does A Hard Cervix Indicate

Engobes Bases of 1040 º C.

All these formulas are white slips will use as bases, then we can be colored with oxides and / or pigments. We must bear in mind that according to the flux is added, if alkaline or leaded, revised colors.
The addition of Quartz and Calcium Carbonate in some ways, also avoid cracks, (for act as low antiplastics), slightly modified the nuances of color formulas that include it.
As always, we must find what is the ideal slip to us and / or work we are doing. Here
are experienced in class Imca technology. All were good, with good grip and texture.

Note: do not forget mortar dry slips, especially when we added oxides and / or pigments to color, that depends on colors that are evenly matched, with no lumps or spots. Then when you add water, mix well to avoid lumps and filtered by mesh 200 #, should be a creamy, not too dilute, that when applied with a brush cover without leaving streaks. The ratio approx. of water added is 60% or so, but that we will be driving and it all depends on how we apply it, because if we apply it with a blowtorch we can dilute it a bit more for the torch gun is not tape.

Formula 1:
70% White Clay (No clay pink or kaolin)
30% Flux (flux or fried) alkaline

Formula No. 2:
70% White Clay (No clay pink or kaolin)
30% Flux (flux or fried) leaded

Formula 3: 90%
White Clay (not pink clay or kaolin)
10% Flux (flux or fried) alkaline

Formula No. 4:
90% White Clay (No clay pink or kaolin)
10% Flux (flux or fried) leaded

Formula 5:
75% White Clay (No clay pink or kaolin)
25% Flux (flux or fried) leaded

Formula No. 6:
75% White Clay (No clay pink or kaolin)
25% Flux (flux or fried) alkaline

Formula # 7:
White Clay 85% (not pink or kaolin clay)
15% Flux (flux or fried) leaded

Formula # 8:
85% White Clay (No clay pink or kaolin)
15% Flux (flux or fried) alkaline

Formula No. 9:
80% White Clay (No clay pink or kaolin)
15% Flux (flux or fried) leaded
5% CaCO3 (calcium carbonate)

Formula No. 10:
80% White Clay (No clay pink or kaolin)
15% Flux (flux or fried) alkaline
5% CaCO3 (calcium carbonate)

Formula No. 11: Clay
85% White (not pink or kaolin clay)
12% Flux (flux or fried) alkaline
3% Quartz

Formula No. 12:
85% White Clay (No clay pink or kaolin)
12% Flux (flux or fried) leaded
3% Quartz