Zircar Refractory Composites AL-HARD AL-HARD RIGIDIZER HARDENER

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Zircar Refractory Composites AL-HARD AL-HARD RIGIDIZER HARDENER
Categories:	Ceramic
Material Notes:	ZRCI AL-HARD Rigidizer/Hardener is used to increase the hardness of ZRCI Refractory Sheet products. AL-HARD is comprised of Aluminum Oxide and Phosphoric Acid in a water base. Refractory Sheet products treated with AL-HARD are ready for use after drying. When a chemical bond forms it hardens the fibrous material. The degree of hardening depends on the amount of AL-HARD used. AL-HARD is non-flammable and is not affected by freezing. It can be applied by immersing, spraying, brushing or sponging on many of ZRCI`s Refractory Sheet products. Information provided by ZIRCAR Refractory Composites, Inc. (ZRCI)
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Physical Properties	Original Value	Comments

Specific Gravity	1.20 g/cc
Solids Content	20 %
pH	1.3

Component Elements Properties	Original Value	Comments
Al2O3	16 - 20 %
Free Water	68 - 75 %

Descriptive Properties
Color	Opaque White
H₃PO₄, %	9 - 12

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CZRCI00 / 2863

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