•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

Sign-up at https://insight-live.com today.

Ultrafiber 55

WOLLASTONITE

OxideAnalysisFormula
CaO47.50%0.997
MgO0.10%0.003
TiO20.02%0.000
Al2O30.20%0.002
SiO251.00%0.999
Fe2O30.40%0.003
MnO0.10%0.002
LOI0.68
Oxide Weight116.96
Formula Weight117.76
If this formula is not unified correctly please contact us.
GSPT - Frit Softening Point 1540 C

This is a coarser grade of needle-shaped crystal wollastonite that acts in a manner similar to fiber additions.
Adding 3-5% will reduce dry and firing shrinkage and improve impact resistance.
Screens to 60 mesh or coarser will accomodate re-screening. 1% retention of 100 mesh is normal.
Best to add to finished slip during gentle paddle mixing.
Polyacrylate thickeners might interfere with efficiency.

Effects on firing are minimal enough that Nyco recommends post additions.

Morphology: Acicular
Specific Gravity: 2.9
Refractive Index: 1.63
pH (19% slurry): 9.9
Water Solubility (g/100cc): 0.0095
Density (lbs/solid gallons): 24.2
Bulking value (gal/lbs): 0.0413
Mohs hardness: 4.5
Coefficient of expansion (mm/mm/C): 6.5 x 10-6
Median particle size (microns): 45
Minus 100 mesh (%): 97
Moisture (%): 0.01


Out Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Ultrafiber 55" descrip="WOLLASTONITE" searchkey="" loi="0.00" casnumber=""> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="47.500" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.100" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.020" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="0.200" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="51.000" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.400" tolerance=""/> <oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.100" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="0.680" tolerance=""/> </volatiles> </material>


Feedback, Suggestions

Your email address

Subject

Your Name

Message


Copyright 2003, 2008, 2015 https://digitalfire.com, All Rights Reserved