Composite Silicate Plate

Flexible composite silicate insulation plate from rare earth cotton for medium-temperature applications up to 600℃.

Raw Material: Rare Earth Cotton (Magnesium Silicate)
Working Temp.: 600℃
Size: 1000×500×50mm / 300×600×50/60mm
Softness: Soft

Overview

✦ Soft and flexible
✦ Good thermal insulation
✦ Easy to install on curves
✦ Medium temperature rated

Soft insulation plate made from rare earth cotton (magnesium silicate) offering flexibility and good thermal insulation at medium temperatures. Easy to install on curved and irregular surfaces.

What Is Composite Silicate Insulation Plate?

Composite silicate plate is a rigid, lightweight insulation board combining a calcium-silicate matrix with reinforcing fibres, giving low conductivity and easy fabrication for equipment and building envelopes.

Key Technical Specifications

Property	Value
Maximum service temperature	up to 650–1000°C (grade dependent)
Density	200–400 kg/m³
Thermal conductivity	≤0.065 W/(m·K) at 100°C; ≤0.10 W/(m·K) at 400°C
Standard thickness	25–100 mm
Standard dimensions	600×900 mm, 1000×1200 mm and custom
Fire classification	A1 (non-combustible, EN 13501-1)
Composition	xonotlite calcium silicate hydrate reinforced with inorganic fibre; 100% asbestos-free
Standards	ASTM C533, EN 14306

Properties & Advantages

Low conductivity with light weight
A1 non-combustible, asbestos-free
Easy to cut, drill and shape on site
Good dimensional stability
Clean, low-dust handling

Typical Applications

Wall and roof insulation panels
Equipment and vessel cladding
Pre-insulated and sandwich panels
General high-temperature backing

Installation & Handling

Cut and fit with conventional tools, fix with adhesive, mechanical fasteners or within a panel system, and protect exterior faces with a weather barrier where required.

Standards & Compliance

Manufactured to ASTM C533, EN 14306 and controlled under a documented quality system. Supplied by a manufacturer holding ISO 9001, CE and SGS certifications, exporting high-temperature insulation to 60+ countries since 1982.

Why Specify This Product

Combines stable high-temperature performance with straightforward on-site fabrication. The material is asbestos-free, chemically stable in neutral and oxidising atmospheres, and supplied with full technical data sheets to support specification and inspection. Supplied by a manufacturer holding ISO 9001, CE and SGS certifications, exporting high-temperature insulation to 60+ countries since 1982.

Manufacturer & Supplier

Rosetexwool is a composite silicate insulation plate manufacturer and supplier serving more than 60 countries since 1982. Every composite silicate insulation plate is produced under a documented quality system certified to ISO 9001, CE and SGS, with batch-level traceability from raw material to finished product.

What our manufacturing capability covers:

In-house melting, fibre-forming and finishing lines for consistent grade and density
Dimensional, density and thermal checks against ASTM C533, EN 14306
Asbestos-free, low-impurity formulations verified by incoming and outgoing inspection
Standard and custom sizes, OEM/ODM grades, and cut-to-size supply for project quantities

For quotations, lead times or technical data sheets, contact our team with your specification and target service temperature. Explore the calcium silicate insulation hub for the full range, or read the calcium silicate insulation buying guide for selection support.

Related Calcium Silicate Products & Alternatives

calcium silicate board insulation — Lower thermal conductivity than comparable hard blocks, which lets you cut lining thickness without giving up the temperature margin or the structural strength.

calsil pipe insulation — Moulded to standard pipe diameters so two halves close tightly on site, cutting installation time on long runs compared with wrapped or field-fabricated solutions.

refractory ceramic fiber blanket — Choose it when the lining has to survive repeated heating and cooling without spalling — low heat storage also shortens cycle time and cuts fuel per batch.

For the full calcium silicate range, temperature limits and strength data, see our calcium silicate insulation guide.

For adjacent material options across temperature and application ranges, explore our rock wool insulation hub.

For a deeper dive into forms, temperature ratings, and application guides, see our ceramic fiber insulation hub.

Part of the Calcium Silicate product family.

Key features

✓ Soft and flexible
✓ Good thermal insulation
✓ Easy to install on curves
✓ Medium temperature rated
✓ Asbestos-free
✓ Cost-effective

Typical applications

Curved equipment insulation
Irregular surface coverage
Medium-temperature kilns
Pipe and duct wrap

Technical specs

Raw Material: Rare Earth Cotton (Magnesium Silicate)
Working Temp.: 600℃
Size: 1000×500×50mm / 300×600×50/60mm
Softness: Soft

Last updated: September 30, 2026

Frequently asked

What is the maximum temperature for calcium silicate insulation? +

Calcium silicate insulation boards can withstand continuous temperatures up to 1100°C. They offer high compressive strength and excellent dimensional stability, making them ideal for high-temperature pipe supports, furnace backup insulation, and aluminium smelter applications.

How does calcium silicate compare to ceramic fiber? +

Calcium silicate offers significantly higher compressive strength (up to 6 MPa) than ceramic fiber blankets, making it the preferred choice for load-bearing insulation. It is supplied in rigid board form, easy to cut and machine. Ceramic fiber, however, offers higher temperature limits (up to 1430°C) and lower thermal conductivity in blanket form.

Is calcium silicate asbestos-free? +

Absolutely. All our calcium silicate products are manufactured using an asbestos-free formula. They meet international health and safety standards including ASTM C533 and EN 14306, and are certified as non-hazardous material for transport and handling.

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