INDUSTRY COMPONENT

Thermal Break

Thermal break is a component in panel joint systems that reduces heat transfer between metal surfaces by inserting low-conductivity materials.

Component Specifications

Definition
A thermal break is an engineered component designed to interrupt thermal conductivity between two metal sections in panel joint systems. It consists of a low-thermal-conductivity material (typically polyamide, polyurethane, or fiberglass-reinforced polymer) mechanically bonded between aluminum or steel profiles. This creates a thermal barrier that minimizes heat flow, reduces condensation risk, and improves energy efficiency in industrial enclosures, cleanrooms, and controlled-environment facilities.
Working Principle
Works by inserting a material with low thermal conductivity between two conductive metal surfaces, creating a thermal resistance barrier that reduces heat transfer via conduction. The break material's molecular structure limits kinetic energy transfer between metal molecules, while maintaining structural integrity through mechanical interlocking or adhesive bonding.
Materials
Polyamide 6.6 (PA66) with 25% glass fiber reinforcement, thermal conductivity: 0.25-0.35 W/m·K; Alternative: Polyurethane (PUR) foam core with aluminum foil facing; Operating temperature range: -40°C to +120°C; Fire rating: UL94 V-0.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Service Life25+ years
Water Absorption≤1.5%
Compressive Strength≥80 MPa
Thermal Conductivity≤0.35 W/m·K
Linear Expansion Coefficient23×10⁻⁶/K

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 10077-2, ISO 10211, DIN 4108, DIN EN 13947

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Material degradation under UV exposure
  • Moisture absorption reducing insulation properties
  • Thermal cycling causing fatigue cracks
  • Incompatible expansion coefficients leading to joint failure
FMEA Triads
Trigger: Inadequate material selection for environmental conditions
Failure: Reduced thermal performance and premature degradation
Mitigation: Use UV-stabilized, moisture-resistant polymers with appropriate temperature ratings
Trigger: Poor manufacturing tolerances
Failure: Air gaps increasing thermal bridging
Mitigation: Implement statistical process control and 100% thermal imaging inspection
Trigger: Incorrect installation compression
Failure: Structural weakness or thermal short-circuiting
Mitigation: Train installers on torque specifications and use calibrated installation tools

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.2mm dimensional tolerance, ±5% thermal conductivity variance
Test Method
ISO 8990 guarded hot box method, ASTM C518 heat flow meter, condensation resistance per AAMA 1503

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Thermal Break

5 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Foshan Shenghai Aluminum Co., Ltd.
Foshan, Guangdong, CN
Founded 2010180+ staff23,000 m²
ISO 9001:2015 GB/T 19001:2016
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Thermal Break Profiles”
View source page ↗ shenghai-alu.com · checked 2026-08-26
SinoExtrud (Foshan Yonghang Aluminum Co., Ltd)
Foshan, Guangdong, CN
ISO EN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Thermal Break Aluminium Profiles”
View source page ↗ sinoextrud.com · checked 2026-08-26
JMA Aluminium (Guangdong JMA Aluminium Profile Factory Group Co., Ltd.)
Foshan, Guangdong, CN
Founded 1993more than 5000 employees staff
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Thermal break aluminum profiles”
View source page ↗ jma-aluminum.com · checked 2026-08-26
HTS NEW MATERIALS
Jiangxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Thermal Break Aluminium Profile”
View source page ↗ hts-alu.com · checked 2026-08-28
Ya Ji Aluminum
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Aluminum Thermal Break Profile”
View source page ↗ yajialuminum.com · checked 2026-08-30

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the primary function of a thermal break in panel systems?

To reduce heat transfer between metal surfaces, preventing thermal bridging that causes energy loss, condensation, and temperature inconsistencies in controlled environments.

Can thermal breaks be retrofitted into existing panel systems?

Yes, but requires disassembly of joint sections and precision cutting. New installations typically achieve better performance with factory-installed thermal breaks.

How do thermal breaks affect structural integrity?

Properly engineered thermal breaks maintain structural strength through mechanical interlocking and material selection, often meeting or exceeding original load-bearing requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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