Monolithic Refractories

Insulating Castable

Lightweight castable: lightweight, energy efficient, easy to install, with high fluidity. Boosts equipment airtightness and corrosion resistance. For industrial kilns, thermal equipment, chimneys and flues.

Bulk Density:0.8-1.3g/cm³

Operating Temp:1200-1300℃

Cold Crushing Strength:2.0-20MPa

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Insulating Castable Overview

Lightweight insulating castable is a castable refractory material made from lightweight aggregates (such as perlite, vermiculite), high - temperature - stable materials, binders, and additives. It combines lightweight, high - strength, and insulation properties and is suitable for the lining of industrial high - temperature equipment.

Features and Properties

Mechanical Properties: It has a balanced flexural strength and compressive strength and good thermal shock resistance.
Chemical Stability: Some models are resistant to acid and alkali corrosion, suitable for corrosive environments.
Construction Convenience: It can be cast on - site or pre - formed, shortening the construction period.

Technical Specifications

Index Items		ZKQJ - 0.8	ZKQJ - 1.0	ZKQJ - 1.5
Bulk Density /g/cm³		0.8	1.0	1.3
Maximum Service Temperature /°C		1200	1250	1300
Thermal Conductivity /W/m·K	350°C	0.25	0.3	0.6
Thermal Conductivity /W/m·K	700°C	0.30	0.4	0.7
Compressive Strength at Normal Temperature /MPa ≥	110°C×24h	2.0	4.0	15
Compressive Strength at Normal Temperature /MPa ≥	1000°C×3h	2.0	5.5	20
Linear Change Rate /%	1000°C×3h	-1.0	-1.0	-0.5

Industry Applications

Industrial Kilns: Used as the insulation layer for furnace roofs, furnace doors, etc.
Thermal Equipment: Applied to the working lining of heat - treatment furnaces and resistance furnaces.
Flue Duct System: Used for the lining of high - temperature chimneys and air ducts.
Other Fields: Applied to CFB boilers, petrochemical acid - resistant tanks, and metallurgical equipment.

Proven Global Projects

About XZK Group

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Innovation

R&D Team

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Product Portfolio

Specializing in premium zircon, corundum, sintered AZS, and monolithics. With a $70M+ annual output, we deliver durable linings for global high-temp industries.

Capacity

✔ 4 automated microcomputer batching systems.

✔ 4 ultra-high-temp tunnel kilns & 5 shuttle kilns.

✔ 20+ CNC hydraulic presses (630-1500T).

✔ Digitalized workshops with 100,000T annual capacity.

Beginning with professional consultation to accurately identify and address specific requirements

One-to-one Service

We offer one-on-one dedicated sales and technical team services to perfectly solve any refractory material problems you encounter

Professional Solution

The company has over 30 technical R&D personnel and can provide professional solutions based on the on-site conditions of customers

Quality Management System

We have a strict quality management system to ensure the stability of the quality of each batch of products.

Responsible After-sales Service

Our dedicated technical team will visit customers regularly and provide free lifetime after-sales service

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Email: market@xzkgroup.com

Phone/WhatsApp/Wechat: 0086 19059612888

Add: Micun Industrial Area, Xinmi City, Henan Province, China

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Insulating Castable

Insulating Castable Overview

Technical Specifications

Industry Applications

Proven Global Projects

Recommended Products

About XZK Group