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ASTM C533 TypeⅠ product
Water-Repellent, Anti-Corrosive
Calcium Silicate Thermal Insulation Material
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DAIPALITE-EiA is a calcium silicate thermal insulation material which is pre-formed for pipe and block section and used for facilities. DAIPALITE-EiA is inorganic, asbestos free and noncombustible. DAIPALITE-EiA provides both water-repellent function and corrosion inhibition effect and is supplied to various industrial fields, such as refinery plants, power plants, petrochemical plants and others.

Special effects of DAIPALITE-EiA

DAIPALITE-EiA is surface-treated with a special corrosion inhibitor containing soluble components (Na+, SiO32-). When the components are dissolved in water, the pH of the solution is more than 10, and a passive film is formed on the pipe surface, preventing iron corrosion.

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Water-repellent performance

Materials were watered for 60 minutes
to measure water repellencies and
absorbencies.
The result is shown in the following figure.

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Water absorbency(%) = (M2-M1)/(V×ρ)×100

M1: Weight of test piece before watering
M2: Weight of test piece after watering
V: Volume of test piece

ρ: Specific gravity of water (ρ=1)

  • DAIPALITE-EiA is a water-repellent material, not water-proof. The functions of water-repellent and corrosion inhibition of DAIPALITE-EiA will be effective with correct installation and keeping in good condition. It is not always a guarantee of your facilities and incorrect use may result in accidents.
  • The recommended temperature in use DAIPALITE-EiA is under 250℃ of the surface temperature of the facilities as the water-repellent function will be lost over it.
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