Jinxing supplies Solid Thermal Break Strip as a China manufacturer and factory specializing in PA66 GF25 thermal break profiles. Made from PA66 nylon reinforced with 25% glass fiber, the solid-profile structure provides a continuous insulating section between aluminum components. It is designed for thermally broken aluminum windows, doors, curtain wall systems, and other aluminum profile applications where dimensional consistency, mechanical strength, and reliable strip insertion are important.
A Solid Thermal Break Strip is a continuous polyamide insulation profile used between separate aluminum sections to interrupt direct heat transfer through the metal frame. Compared with hollow or multi-chamber thermal break profiles, a solid strip has a continuous material cross-section rather than internal cavities.
Jinxing uses PA66 GF25, combining a PA66 polymer base with 25% glass fiber reinforcement. The material is selected for thermal break applications that require both insulation and sufficient mechanical properties for profile assembly.
The final profile shape, width, thickness, and locking geometry need to match the aluminum extrusion and its insertion groove. For this reason, dimensional accuracy and stable extrusion are important during production.
Jinxing manufactures Solid Thermal Break Strip in different cross-sectional configurations to suit aluminum profile systems, including:
· I-Type Thermal Break Strip
· C-Type Thermal Break Strip
· T-Type Thermal Break Strip
· Special-Shaped Thermal Break Strip
Custom profiles can be developed according to customer drawings, samples, groove dimensions, or existing aluminum extrusion requirements.
For projects using a non-standard section, the aluminum profile groove and strip locking geometry should be confirmed before production so that the finished thermal break strip fits the intended assembly process.
Solid Thermal Break Strip is used to separate the interior and exterior aluminum sections of thermally broken window and door profiles. It is suitable for residential, commercial, and architectural aluminum systems where thermal separation is required.
For aluminum curtain wall profiles, the thermal break strip forms the non-metallic separation between aluminum components while also participating in the mechanical connection of the composite profile.
The strips can be integrated into different aluminum extrusion systems according to the profile groove, strip dimensions, and required connection method.
Special-shaped Solid Thermal Break Strips are suitable for aluminum profile manufacturers and system suppliers developing non-standard doors, windows, facades, or other insulated aluminum structures.
Jinxing controls the main production stages internally:
Raw Material Blending → Extrusion → Cooling and Shaping → Precision Cutting → Inspection
PA66 nylon and glass fiber are inspected before production. Incoming material checks include melt flow index, glass fiber content, and moisture content to maintain consistent raw material conditions.
High-precision extrusion lines and dedicated tooling are used to form different thermal break cross-sections. Extrusion temperature, pulling speed, and cooling conditions are controlled to maintain profile geometry along the production length.
After extrusion, the profile is cooled and calibrated to establish its final dimensions and cross-sectional shape. Stable cooling conditions are important for controlling dimensional variation and avoiding deformation.
Finished profiles can be supplied in 6-meter straight lengths or processed into customized lengths. Jinxing also supports end chamfering and laser coding, including logo, batch number, and production date marking.
Jinxing applies quality inspection throughout the production process rather than relying only on final inspection.
Cross-sectional dimensions and surface conditions are sampled during production, with process parameters recorded for batch traceability.
According to customer requirements and applicable standards such as GB/T 23615.1-2017 or EN 14024, product batches can be evaluated for properties including:
· Density
· Shore hardness
· Longitudinal and transverse tensile strength
· High-temperature tensile strength
· Low-temperature tensile strength
· Water resistance
· Thermal aging resistance
· Linear expansion coefficient
Before shipment, product appearance and dimensions are inspected according to the agreed quality requirements. An English inspection report can be provided with the shipment.
The performance of a thermal break strip depends not only on the material but also on how it matches the aluminum profile and assembly process.
Before mass production, Jinxing can review the required cross-section and dimensions according to customer drawings. For production issues such as difficult strip insertion, cracking during rolling, or insufficient shear performance, the team can assist in checking profile groove dimensions, strip geometry, and relevant processing parameters.
This approach is particularly useful for customers developing a new thermally broken aluminum profile or changing from one thermal break strip specification to another.
The main structural difference is the cross-section.
A Solid Thermal Break Strip has a continuous material section and is suitable for profile designs that require this type of geometry. A hollow or multi-cavity thermal break strip contains internal cavities and is designed around a different balance of profile geometry, material usage, and thermal performance.
The correct choice depends on the aluminum profile design, available groove space, mechanical requirements, and target thermal performance of the complete window, door, or curtain wall system. The strip should therefore be selected together with the aluminum profile rather than by width alone.
In-House Extrusion Production
Jinxing controls raw material processing, extrusion, cooling, shaping, and cutting within its own production system.
PA66 GF25 Material Focus
The product is specifically developed around PA66 reinforced with 25% glass fiber for thermally broken aluminum profile applications.
Custom Profile Development
I, C, T, and special-shaped sections can be produced according to drawings and profile requirements.
Process-Based Quality Control
Inspection covers raw materials, extrusion production, finished dimensions, laboratory testing, and pre-shipment inspection.
Practical Technical Support
Support focuses on actual profile matching and production problems, including strip insertion, rolling, cracking, and dimensional adjustment.
What material is used for Solid Thermal Break Strip?
Jinxing Thermal Break Strip is made from PA66 nylon reinforced with 25% glass fiber (PA66 GF25).
Where is it used?
It is mainly used in thermally broken aluminum windows and doors, curtain wall systems, and insulated aluminum profile assemblies.
What shapes of Solid Thermal Break Strip can Jinxing produce?
Standard product configurations include I-Type, C-Type, and T-Type profiles. Special-shaped sections can also be developed based on customer drawings or samples.
Can it be customized?
Yes. Jinxing supports customized dimensions, special cross-sections, colors, cutting lengths, packaging, and laser coding according to project requirements.
What are the standard supply lengths?
Straight strips are normally supplied at 6 meters per piece, while coiled strips can be supplied at 500 meters per roll. Customized cutting is also available.
Can Jinxing produce a strip based on an aluminum profile drawing?
Yes. Customers can provide an aluminum profile drawing, strip drawing, sample, or relevant groove dimensions for section confirmation and tooling development.
Can it be used for curtain walls?
Yes. The product can be used in aluminum curtain wall systems where a PA66 GF25 thermal break profile is required. The final specification should be matched to the curtain wall profile and its mechanical connection design.
What should be checked before ordering it?
The main points include the aluminum profile groove dimensions, strip cross-section, width and thickness, required length, assembly method, color, and packaging form. For new projects, confirming the strip together with the aluminum profile can help avoid insertion and assembly problems.
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Taozhou Town, Guangde City, Xuancheng City, Anhui Province, China
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