Factory-direct calsil insulation board, pipe sections and panels rated to 1100°C. ISO 9001 manufacturer since 1982 — get a quote in 24 hours.
Overview
Calcium silicate insulation — also called calsil — is a rigid, high-temperature thermal insulation made from lime and silica reinforced with fibers, cured in an autoclave. It combines low thermal conductivity, high compressive strength and dimensional stability, making it the standard choice where insulation must carry a load: pipe supports, furnace back-up linings and hot equipment.
Rosetexwool manufactures calcium silicate in every commercial form, each rated to 1100°C:
Applications & Supply
Calcium silicate insulation is specified wherever rigid, load-bearing thermal insulation is required:
As a calcium silicate manufacturer and supplier with our own factory (since 1982), we serve distributors, contractors and OEMs directly — no trading middlemen:
Send us your operating temperature, dimensions and quantities for a same-day quote.
Send us your operating temperature, dimensions and quantities.
We deliver industrial-grade thermal solutions trusted by engineers worldwide.
Calcium silicate board and pipe sections for continuous high-temperature service.
Rigid, load-bearing panels that hold their shape under load — ideal for pipe supports.
Inorganic, asbestos-free and fire-safe for demanding industrial insulation.
Explore our recommended products tailored to your application requirements.
High-strength calcium silicate insulation board (also known as calsil board) with excellent heat resistance and low thermal conductivity. Working temperature up to 1100C. A rigid silicate board ideal for industrial furnace and kiln lining.
Ultra-high density calcium silicate board (>500kg/m³) for applications requiring maximum mechanical strength.
Calcium silicate (calsil) is used for high-temperature pipe insulation, boiler and furnace back-up insulation, and high-load points such as pipe supports. It is rigid and load-bearing, rated to 1100°C, so it is specified where compressible insulation would crush.
Our calcium silicate board and pipe sections are rated for continuous service up to 1100°C depending on grade. High-density boards (>500 kg/m³) are available for applications needing maximum mechanical strength.
Calcium silicate board is rigid and load-bearing with high compressive strength, so it suits pipe supports and structural back-up insulation. Ceramic fiber is flexible with low heat storage, better for lining large furnaces and rapid heat-up cycles. Many plants use both: calsil for load points, ceramic fiber for linings.
Calsil is the common industry abbreviation for calcium silicate insulation. It refers to the same rigid, high-temperature board, panels and pipe sections made from lime and silica.
