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White Engobe for H550, H450 #2

Code: L3954N
Modification Date: 2019-01-07 17:14:44

MaterialAmountPercent
Nepheline Syenite10.09.8%
Silica20.019.6%
Ball Clay60.058.8%
Zircopax10.09.8%
Bentonite2.02.0%
 102.00  

Notes

This is the product of a series of tests where the percentage of feldspar was progressively reduced (from 25% originally) to reduce the firing shrinkage (it is important that engobes shrink the same as the body they are on or they will flake or crack off during firing or later during ware use or exposure to the elements). Amazingly only 10% nepheline syenite is needed.

This engobe is very plastic so it sticks well to leather hard clay.

The zircopax makes this fire quite white. If you want black, switch it to 10% Mason 6600. Be careful with other stains, some of them will flux and increase the fired shrinkage.

To mix this follow the instructions on using an engobe at the Digitalfire Reference Library.

Out Bound Links

XML to Paste Into Insight

<?xml version="1.0"?>
<recipes version="1.0" encoding="UTF-8">
<recipe name="Cone 10R Base White Engobe" keywords="Coming soon." id="136" date="2019-01-07" codenum="L3954N">
<recipelines>
<recipeline material="Nepheline Syenite" amount="10.000" added="0"/>
<recipeline material="Silica" amount="20.000" added="0"/>
<recipeline material="Ball Clay" amount="60.000" added="0"/>
<recipeline material="Zircopax" amount="10.000" added="0"/>
<recipeline material="Bentonite" amount="2.000" added="0"/>
<url url="https://digitalfire.com/4sight/recipes/cone_10r_base_white_engobe_136.html" descrip="Recipe page at digitalfire.com"/>
</recipelines>
<urls/>
</recipe>
</recipes>


By Tony Hansen




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