Alumina Rigidizer Hardener - 32 oz.

Alumina Rigidizer Hardener - 32 oz.

Armstrong Glass Company

  • $49.28
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Alumina Rigidizer Hardener - 32 oz.

Alumina liquid for hardening & increasing the refractory properties of alumina &alumina-silicate fiber products. Ceramic papers/blankets can also be rigidized with this liquid. Application: brushing rolling, dipping or spraying. May be water diluted. Non-flammable. After application, water is removed to make a  bond which stiffens the fibrous material. Suitable up to 3000°F (2650°C). 32 oz. container (946 mL). A sprayed thing coat covers approximately 25 sqft (2.3m²). up to 1/16" (1.6mm) thick. 


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