Aluminum thermal break profiles are widely used in energy-efficient window and door systems for residential, commercial, and public buildings. These profiles incorporate a non-metallic thermal barrier—typically a polyamide strip—between the inner and outer aluminum sections to reduce heat transfer and improve insulation. They provide structural stability while enhancing thermal and acoustic performance.
Aluminum thermal break profiles are used in window and door systems where thermal insulation is required. A non-metallic barrier, typically made of polyamide, is placed between the interior and exterior aluminum sections to reduce heat transfer. These profiles retain the structural function of standard aluminum profiles while helping improve energy efficiency in building envelopes.
Free Design、Free Samples、ODM&OEM
Aluminum thermal break profiles in various specifications
Die, Extrusion, Surface Finish, CNC Machining, Finished Product Assembly
We manufacture aluminum thermal break profiles in both standard and custom specifications, using commonly used alloys such as 6063 and 6061. These profiles are designed for window and door systems that require improved thermal insulation. They incorporate a polyamide strip between the inner and outer aluminum sections to reduce heat transfer.
Profile dimensions, wall thickness, and thermal barrier widths can be adjusted based on structural and performance requirements. We support the full production process, including technical drawing review, extrusion, thermal break insertion, machining, and surface treatment, to ensure the profiles meet the needs of the intended application.
| Item Type | Aluminum Thermal Break Profile |
| Material | 6063, 6061 Aluminum + Polyamide Strip |
| Temper | T5, T6 |
| Application | Thermally insulated window and door systems |
| Color | Customized RAL Colors / Anodized / Wood Grain |
| Thickness |
1. Profile wall: 1.2mm–2.0mm 2. Anodizing: 8–15μm 3. Powder Coating: 60–100μm |
| Shape | Chambered window/door sections with thermal break, custom shapes supported |
| Thermal Barrier | Polyamide 66 GF25 strip, width 12–34mm, mechanically crimped |
| Quality Control | 1. Dimensional and surface inspection 2. Thermal barrier bonding test 3. Mechanical performance check |
| Surface Treatment | Anodizing, Powder Coating, Wood Grain, PVDF, Brushed |
| Processing Services | CNC machining, cutting, drilling, slotting, assembly, punching |
| MOQ | Negotiable, based on profile type and order size |
| OEM & ODM | Available. Custom profile design and die development supported |
| Free Samples | Available for verification before bulk order |
| Delivery Time | 15–25 days depending on die, surface finish, and processing |
| Port | Guangzhou or Shenzhen Port |
Communication is the first step to start a project. Simply upload CAD drawings, product images or provide samples, and we will perform DFM analysis and provide you with a quotation.
After confirming the production details we will make the first sample for you, and once you are satisfied with the sample we will start the batch production of your project.
For aluminum extrusion profiles, stable profile quality is an important factor to ensure the success of the project. Quality is our manufacturing criterion.
We support ODM/OEM, provide one-stop aluminum profile production services, have a variety of standard aluminum profile specifications of extrusion dies, and produce your aluminum profiles according to demand with competitive price costs.
Surface finishing improves the appearance, corrosion resistance, and weather durability of thermal break aluminum profiles. These treatments are selected based on application environment, design requirements, and long-term maintenance expectations. All finishes are compatible with the thermal barrier structure and do not affect the insulation performance of the profile.
An electrochemical treatment that creates a stable oxide layer on the aluminum surface.
The charged aluminum profiles are immersed in a coating solution in an electrolytic tank. Through electrophoresis, the coating evenly adheres to the aluminum surface. Electrophoretic coating provides good weather resistance, color stability, and a smooth and uniform coating.
Corrosion resistance of composite film: ≥9.5 level
Paint film cohesive: Zero lever
Paint film hardness: ≥3H
Surface: Matte; flat; high brightness
Color: Silver white; bronze; champagne
Features: Corrosion resistant; durable; smooth and shining
A dry powder is applied electrostatically and cured under heat to form a uniform layer.
A mechanical surface treatment before anodizing or coating.
Provides a linear texture for visible sections
Often used in interior doors or decorative frames
Decorative finish applied on top of powder coating using a heat-transfer process.
The most commonly used aluminum alloys for thermal break profiles are 6063-T5 and 6061-T6, selected based on their mechanical properties, corrosion resistance, and compatibility with the thermal barrier insertion process.
Both alloys are processed under controlled tempering conditions to ensure stability and dimensional accuracy. They comply with international standards such as EN 755, ASTM B221, and GB/T 5237, which define requirements for mechanical performance and surface finish quality in architectural aluminum applications.
We offer complete in-house manufacturing for aluminum thermal break profiles, covering mold design, extrusion, thermal barrier assembly, surface treatment, and post-processing. Our production setup is optimized for precision and consistency in insulated window and door profile systems, ensuring both structural integrity and thermal performance.
We have one-stop production capabilities, providing services from aluminum extrusion profiles to surface treatment, additional processing and finished door and window assembly.
We support packaging according to your needs, such as outer boxes with your logo, customized profile packaging. If there is no special instructions, we will use our regular packaging.
We provide custom manufacturing services for aluminum thermal break profiles used in insulated window and door systems. Our production covers extrusion, thermal barrier assembly, surface finishing, and CNC processing. Profiles can be developed to meet specific structural, thermal, and aesthetic requirements across a wide range of building applications.
1. Design Input
Clients may provide 2D/3D drawings or define system type, thermal break width, and structural parameters. We offer support in refining the profile design if needed.
2. Profile & Tooling Setup
We confirm alloy, dimensions, chamber layout, and insulation strip placement. Custom dies are developed for new profile sections as required.
3. Surface Finishing
Options include anodizing, powder coating, wood grain transfer, and PVDF coating. Finishing is selected based on environment and design preference.
4. Final Processing & Delivery
Profiles are processed, packed, and delivered per project requirements, ready for assembly or integration into finished systems.
A thermal break aluminum profile contains an insulating strip (usually PA66 polyamide) inserted between the inner and outer aluminum sections. This barrier reduces heat transfer, improving thermal performance in window and door systems.
We use PA66 GF25 (glass fiber reinforced polyamide), which offers dimensional stability, durability, and compatibility with the crimping process.
Typical insulation strip widths range from 12 mm to 34 mm, depending on the system requirements and profile design. Custom widths can be developed.
Mainly 6063-T5 for standard window/door systems, and 6061-T6 where higher strength is required. Both comply with standards such as EN 755, ASTM B221, and GB/T 5237.
Yes. We support custom dies, thermal strip configuration, glazing slot dimensions, and surface treatment based on project requirements.
Available finishes include anodizing, powder coating, wood grain transfer, and PVDF coating. All finishes are compatible with thermal break structures.
No. Surface treatment only affects appearance and surface durability. The thermal insulation is provided by the polyamide barrier.
Yes. We offer cutting, CNC machining, slotting, drilling, and other processing services to deliver profiles prepared for fabrication or installation.
An aluminium thermal break profile consists of two separated aluminum sections joined by an insulating strip, typically made from PA66 polyamide. This structure reduces thermal bridging between interior and exterior environments in windows and doors, helping meet energy efficiency standards without compromising strength or design flexibility.
The polyamide strip acts as a barrier to interrupt heat transfer through the metal frame. Since aluminum is a good conductor of heat, the thermal break significantly lowers U-values by reducing conductivity across the frame. It also helps improve interior comfort and reduce condensation on frame surfaces in cold climates.
The aluminum sections are usually extruded from 6063-T5 or 6061-T6 alloys, selected for their structural stability and surface finish. The thermal barrier is made from PA66 GF25, a glass fiber–reinforced nylon known for its dimensional stability and resistance to deformation during crimping and long-term use.
Thermal strip widths generally range from 12 mm to 34 mm, depending on system design. Wider barriers are used in high-insulation or multi-chambered profiles. Strip dimensions can be customized based on insulation requirements and glazing configurations.
Thermal break profiles are used in:
They are suitable for residential, commercial, and public building applications requiring thermal efficiency.
Thermal break profiles support various surface treatments, including:
Finishing is applied after crimping or coating can be done on each aluminum half before thermal barrier assembly, depending on the process.
Our thermal break profiles are manufactured to meet standards such as:
These standards cover mechanical properties, surface treatment quality, and dimensional tolerances.
Yes. Customizations include profile shape, wall thickness, insulation strip width, glazing channel size, and surface finish. We offer custom die development and engineering support to meet project-specific requirements.
We offer cutting, CNC machining, drilling, slotting, and end milling. Profiles can be delivered ready for assembly or integration into door and window systems. Processing accuracy is maintained to fit hardware and sealing components.
They are commonly used in energy-efficient building envelopes, such as:
Their main role is to support thermal insulation while meeting structural and aesthetic requirements.
