High-Strength Polyamide Thermal Break Strip

When mechanical strength is an important selection factor, the High-Strength Polyamide Thermal Break Strip from Jinxing provides a reinforced PA66 solution for thermally broken aluminum profiles. Buyers sourcing from a China manufacturer or supplier can specify the required cross-section and dimensions according to the aluminum extrusion, insertion method and mechanical connection.

Strength Comes from the Material and the Profile

A thermal break strip needs to maintain its shape while being inserted and mechanically joined to aluminum. PA66 reinforced with glass fiber provides the stiffness and strength needed for this process.

Jinxing also controls the profile geometry during extrusion so that the reinforced strip can maintain stable dimensions along its length.

Core Advantages

· High Mechanical Strength — Suitable for thermal break assemblies subject to mechanical loads.

· PA66 GF25 Reinforcement — Glass fiber increases rigidity and structural stability.

· Resistance to Deformation — Helps maintain the required profile shape during assembly and service.

· Stable Mechanical Engagement — Supports reliable connection with aluminum sections after rolling.

· Consistent Profile Dimensions — Controlled extrusion helps maintain the required cross-section.

Mechanical Performance in Profile Assembly

The strip is exposed to different forces during production and use, including insertion pressure, rolling forces and the stresses generated within the finished aluminum profile.

For this reason, a high-strength profile should provide:

· Stable longitudinal strength

· Adequate transverse shear resistance

· Good dimensional retention

· Reliable engagement with the aluminum groove

· Resistance to cracking during profile processing

Jinxing's glass-fiber orientation process is designed to support both longitudinal strength and transverse resistance within the profile.

Typical Applications

High-Strength Polyamide Thermal Break Strip is suitable for aluminum systems where mechanical stability is important:

Windows
For thermally broken frame and sash profiles requiring stable strip engagement.

Doors
For aluminum door sections exposed to repeated opening, closing and mechanical loads.

Curtain Walls
For façade profiles where the thermal break must remain stable within the aluminum framing system.

Larger or More Demanding Profiles
For extrusion designs where a reinforced polyamide profile is preferred over standard unreinforced plastic sections.

Profile Design Still Matters

High strength cannot compensate for an unsuitable cross-section. The strip must match the aluminum extrusion in:

Jinxing can develop non-standard sections from an aluminum profile drawing or physical sample.

PA66 GF25 Processing

The material is prepared before entering the extrusion process, followed by cooling, shaping and precision cutting.

Jinxing checks incoming PA66 and glass fiber materials for relevant properties such as melt flow index, glass-fiber content and moisture. During extrusion, temperature, pulling speed and cooling conditions are controlled to maintain profile consistency.

Quality Checks

The finished strip is checked for dimensions and surface condition, with production samples taken during extrusion.

Where required, Jinxing can evaluate relevant properties such as:

· Longitudinal tensile strength

· Transverse tensile strength

· High- and low-temperature performance

· Water resistance

· Thermal aging

· Linear expansion characteristics

Testing is carried out according to the applicable project or market requirements.

Customized High-Strength Profiles

Different aluminum systems may require different strength levels and cross-sectional structures. Jinxing can customize:

· Profile shape

· Width and thickness

· Locking details

· Color

· Cut length

· Packaging

· Laser coding

A customized profile can be developed from drawing or sample through tooling, trial extrusion, dimensional confirmation and mass production.

Supply Options

Standard straight strips are supplied at 6 m per piece. Coiled supply can be arranged for suitable specifications, with cut-to-length processing available for customized orders.

FAQ

What is a High-Strength Polyamide Thermal Break Strip?

It is a reinforced polyamide thermal break profile designed for aluminum systems where higher mechanical stability is required.

What material is used for Jinxing high-strength strips?

Jinxing uses PA66 with glass-fiber reinforcement, including PA66 GF25, for its core thermal break profiles.

Why is glass fiber used in thermal break strips?

Glass fiber improves the rigidity and mechanical stability of polyamide, helping the strip withstand profile insertion, rolling and service loads.

Where are high-strength polyamide strips used?

They are used in thermally broken aluminum windows, doors, curtain walls and other aluminum extrusion systems with higher mechanical requirements.

Can Jinxing customize a high-strength thermal break profile?

Yes. Jinxing can develop customized cross-sections and dimensions according to aluminum profile drawings or samples.

How should the required strength be determined?

The selection should consider the aluminum profile design, assembly method, strip dimensions and applicable mechanical performance requirements.