•The secret to cool bodies and glazes is a lot of testing.
•The secret to know what to test is material and chemistry knowledge.
•The secret to learning from testing is documentation.
•The place to test, do the chemistry and document is an account at https://insight-live.com
•The place to get the knowledge is https://digitalfire.com
% Passing 325 Mesh Wet - P325
This test procedure was employed in the Foresight Ceramic Database and now is available for those having an account at Insight-Live.com.
Accumulating test data using the variables defined in these procedures enables us to create tools that enable you to compare the physical properties of materials and recipes.
In production situations where glazes or other products are ball milled beyond the standard 200 mesh (74 microns) size of many production raw materials, this test is an excellent indicator of consistency of the process and of contaminents that could cause problems. For example, in the tile industry, a residue of 2-4% is normal. For even better melting and fewer defects a company might target 1-2% residue.
VAL - Value (V)
Out Bound Links
SADR - Sieve Analysis Dry
SVWT - Sieve Analysis Wet
SIEV - Sieve Analysis 35-325 Wet
WSR - Wet Sieve Residue
5: PTT - Particle Tests
In Bound Links
P200 - % Passing 200 Mesh Wet
By Tony Hansen