Industrial Insulation Materials Performance Selection Guide

Complex industrial working conditions require thermal insulation materials with differentiated temperature resistance, fireproof, sound insulation and anti-corrosion properties. Improper material selection will cause heat loss, higher O&M costs and potential fire risks. This article summarizes the performance and applicable scenarios of 5 mainstream industrial insulation materials for accurate project selection.

1. Performance Overview of 5 Core Insulation Materials

1 .1Glass Wool

Temperature range: -30℃ ~ 450℃

Fire rating: Class A Non-combustible

Features: Lightweight, easy to install, low thermal conductivity, excellent sound absorption, cost-effective

Applications: Ventilation ducts, medium-low temperature pipelines, equipment rooms, central air conditioning systems, workshop noise reduction

1.2 Rock Wool

Temperature range: 200℃ ~ 750℃

Fire rating: Class A Non-combustible

Features: High mechanical strength, outstanding high-temperature resistance, fireproof and anti-corrosive

Applications: High-temperature steam pipelines, industrial boilers, power equipment, factory fire partitions

1.3 Alkaline Earth Silicate (AES) Fiber

Temperature range: 800℃ ~ 1150℃

Fire rating: Class A Non-combustible

Features: Low bio-solubility, non-toxic, eco-friendly, excellent thermal shock resistance

Applications: High-temperature kilns, petrochemical & power high-temperature equipment, marine high-temperature cabins, environmentally compliant high-temperature projects

1.4 Refractory Ceramic Fiber (RCF)

Temperature range: 800℃ ~ 1260℃

Fire rating: Class A Non-combustible

Features: Ultra-high temperature resistance, stable thermal performance, resistant to rapid temperature change

Applications: Ultra-high temperature kilns, incinerators, high-temperature reaction kettles, metallurgical and petrochemical equipment

1.5 Elastomeric Foam Insulation

Temperature range: -40℃ ~ 120℃

Fire rating: Class B1 Flame-retardant

Features: Closed-cell structure, waterproof, shockproof, excellent cold preservation performance

Applications: Chilled water pipelines, refrigeration equipment, indoor HVAC and low-temperature systems

2. Core Performance Comparison Table

Material Type	Temperature Range	Fire Rating	Core Advantages	Cost Level
Glass Wool	-30℃~450℃	Class A Non-combustible	Insulation,  sound absorption, lightweight	Low-Medium
Rock Wool	200℃~750℃	Class A Non-combustible	High-temperature resistant, high strength,  fire separation	Medium
AES Fiber	800℃~1150℃	Class A Non-combustible	High-temperature insulation, eco-friendly, non-toxic	Medium-High
RCF Ceramic Fiber	800℃~1260℃	Class A Non-combustible	Ultra-high temperature resistance,  thermal stability	High
Elastomeric Foam	-40℃~120℃	Class B1 Flame-retardant	Cold preservation, waterproof,  shock absorption	Medium

3. Key Material Selection Principles

• Temperature-based: Glass wool for below 450℃; Rock wool for 450℃-750℃; AES fiber for 750℃-1150℃ (eco-compliant); RCF for above 1100℃ ultra-high temperature; Elastomeric foam for low-temperature cold preservation.
• Function-based: Glass wool for noise reduction; Rock wool for fire & load-bearing scenarios; AES fiber for eco-friendly high-temperature projects; RCF for ultra-high temperature equipment.
• Environment-based: Inorganic wool materials for humid & corrosive conditions; AES fiber for high-standard environmental & export projects; Elastomeric foam for clean indoor low-temperature systems.
• Cost-based: Adopt glass wool for conventional medium-low temperature projects; Match high-performance materials for high-temperature scenarios to balance safety, compliance and durability.

About Us

Harmony Advanced Materials Limited focuses on industrial and marine thermal insulation solutions. We supply full-range insulation materials including glass wool, rock wool, AES fiber and RCF ceramic fiber, with customized density and size options. We provide one-stop material selection and technical support for pipeline, equipment, factory and marine projects, helping clients achieve energy saving, safety compliance and cost optimization.