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Rigidizer - Gallon or Quart

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Price: From $18.95 to $49.95
Manufacturer: Laguna
Part No: RF-458

Product Options



Select Quart or gallon size above.

Rigidizer is acolloidal silica inorganic liquid hardener, has a temperature grade rating of 1260°C (2300°F). It is generally used to increase the durability and surface erosion resistance of Inswool/Kaowool/Fiberfrax blanket, module, and board products. 

 Kaowool (Inswool) Rigidizer is stabilized against freezing during exposure to cold; however, freezing should be avoided. 
If you live in a freeze area do not order this during winter months. Clay Planet will not be held responsible if it freezes.

-Sets with strong, hard film and develops ceramic bond above 1600°F (871°C)
-Can be used for spray, dip, or brush applications over fiber blanket, boards, or modules to impart extra strength
-To verify depth of penetration of the rigidizer product, a food grade dye can be added to give color to the rigidizer. This will not harm material or the rigidizer.

• Increases surface hardness and resistance to erosion
• Easily applied by brushing or spraying
• Freeze resistant Applications
• Surface coating for Kaowool (inswool)ceramic fiber blanket exposed to high velocity gases
• Adhesive for use in making composites and laminates
• Surface treatment for Kaowool (inswool) vacuum formed shapes to increase surface hardness

Physical Properties:
Color clear
Solid content, % silica (approx) 28 - 29
Weight per gallon, lb (kg) (approx) 10 (4.5)
Nominal density, (wet), pcf (kg/m3) (approx) 75 (1202)
Maximum temperature rating, °F (°C) 2300 (1260)
Freezing temperature, °F (°C) 28 (-2)
Viscosity, centipoises @ 25°C 4
Specific gravity @ 25°C 1.203
pH 9.7

Kaowool (inswool) Rigidizer must be protected from freezing. Normal shelf life is twelve months in unopened containers that have been properly stored.

Installation Information
  • Kaowool (inswool) Rigidizer is applied by brushing, dipping, rolling, and spraying. Suitable respiratory protection and ventilation are required when applied by spraying.
  • Materials to be rigidized should be free of all grease and oil.
  • Kaowool (inswool) Rigidizer receives its bonding action from the removal of physical water. Bonding may be accelerated by heating or over drying. Curing is a function of the size of the shape and its geometry.
  • An application rate of one gallon per 25 square feet (7.6 m2) of ceramic fiber surface will render a hard surface without completely rigidizing the interior of the ceramic fiber body.

Warning. This product can expose you to chemicals including crystalline silica (airborne particles of respirable size), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Health Hazard Warning
  • Please handle all raw materials with safety in mind. The Dry form of all clay, glaze, and raw materials can expose you to hazards when not handled properly.
  • When handling and mixing DRY ceramic materials and powders, wear a full breathing respirator, eye protection, and gloves to protect your lungs and hands

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