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Calcium Silicate Block

Calcium silicate is a high-temperature insulation typically used on pipe and equipment in industrial facilities like chemical plants, refineries, and more. Calcium silicate block is molded, preformed calcium silicate insulation and is available as Flat Block and 3-V Scored with thicknesses ranging from 1” to 4-1/2”. CalSil block can withstand temperatures up to 1200°F with superior corrosion-inhibition and durability. View our selection of calcium silicate block insulation below!

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