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Kaowool Rigidizer - Standard

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Standard Rigizer. More economical than freeze-proof.

Caution: you cannot freeze this product, always store it at room temperature.

We do not ship this product when temperatures drop below freezing.

Why Rigidize?

  • Kaowool Rigidizer is a popular colloidal silica compound for treating surfaces of ceramic fiber refractory products (Inswool, forge insulation blanket). It provides a degree of surface stiffness, resistance to erosion, and protection from compression during coating with castables (if performed).

TIP: Use in conjunction with ITC 100 HT.

  • While Rigidizer can't fully withstand metal welding heat, it helps give wool integrity resisting compression which would permanently diminish performance.
  • It is very popular when applying coatings like ITC 100HT, and ITC 296A.
  • Application of the famous ITC 100 ceramic reflective paint coating to Kaowool (or similar) is simply easier after it is rigidized. (It makes it less like trying to paint cotton balls).  
  • ITC itself is rated to 5000 °F, and by reflecting the heat from the surface of the wool, a typical 40% increase of forge efficiency, burning less fuel, & shortening heat up time.
  • ITC further preserves the properties of the Rigidizer and the thermal wool by mitigating the heat transferred from the firebox.

Typical Applications:

  • Surface coating for ceramic fiber blanket and modules exposed to high-velocity gases.
  • Surface treatment for vacuum-formed fiber shapes to increase surface hardness.
  • Increases surface hardness and resistance to erosion.
  • Easily applied by brushing or spraying, a little goes a long way.

Size Options Available:

  • 250 ml bottle - capped
  • 500 ml bottle - capped

    Click here for Rigidizer SDS.

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