• Paolo
    Thank you very much for very good news! I understand the complication you had, no problem, we appreciate your honesty and collaboration. You have supplied good dies, all sizes within tolerance. We have ordered dies for a total amount of more than 200,000 USD and we are continuing to order. Thank you again to you and your very professional team.
  • Robin
    The polyamide strips are working perfectly. Thanks a lot.
  • Brian
    Hello, finally we will receive the container by tomorrow. Special thanks for your hard work and especially my CEO mentioned you and appreciated your work. Thank you again.
Contact Person : Camille Cai
Phone Number : 86-13584481777
WhatsApp : +8613584481777

HK Thermal Break Polyamide Strip PA66 Heat Resistance In Aluminum Windows

Place of Origin Jiangsu, China (Mainland)
Brand Name Polywell
Model Number PW-HK
Minimum Order Quantity 5000 meters
Price Negotiation
Packaging Details linear or roll
Delivery Time 10-15 working days
Payment Terms T/T
Supply Ability 100000 meters per day
Product Details
Material PA66 GF25 Color Black
Application Thermal Break Aluminum Refractoriness 200-450°C
Size Customized Port Shanghai
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HK Thermal Break Strip


PA66 Thermal Break Polyamide Strip


Aluminum Windows Thermal Break Polyamide Strip

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Product Description

HK Thermal Break Polyamide Strip PA66 Heat Resistance In Aluminum Windows


Production Description

Nylon66 Thermal barrier strip of polyamide extruding product, which is widely used for bridge insulating aluminum profile, has excellent performance such as high temperature resistance, chemical resistance, ultraviolet resistance and water resistance. The Linear Expansion Coefficient of the product is close to that of aluminum profile, which makes long durance of spacer and aluminum profile. The product meets the National Standard of GB/T23615.1-2009.



Product Feature

1. The working temperature of the thermal insulation strip is 220°C, Melting Point reaches to 246°C. This enables coating process after assembly of composite profiles;
2. High mechanical strength, able to connect with metal hardware fittings when bearing draw and shear stress;
3. Excellent product tolerance of less than 0.1mm, ensuring air and water tightness and overall composite profile dimensions;
4. High corrosion-resistance, weather-resistance, heat-resistance, alkali-resistance and long life of usage;
5. The thermal expansion coefficient of PA66GF25 is similar to aluminum thus ensures that product does not affect the integrity of the thermally insulated aluminum profiles;
6. Precisely dimension ensures the lifespan of aluminum extrusion tools, no danger of bending cracks during rolling, very good knurling effect at the hammer head and easy to assemble.



The shape HK thermal barrier polyamide strip can prevent the window frame from dust and water, has a better mechanical performance, is the first generation and easiest shape of insulating strips.

For the shape HK, we can provide the following size or customize according to customers' requirements.

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It is mainly used in insulation broken bridge aluminium products, helping to reduce heat loss or heat gain through the aluminum, and has better performance in terms of power usage. 




Product Performance





Nylon Thermal Break Strips



PA66 GF25



GB/T 23615.1-2009

PW-Technical specification





Linear expansion coefficient




Vicat softening temperature




Melting point




Testing for tensile cracks


No cracks

No cracks

Shore hardness




Impact strength(Unnotched)




Tensile strength(longitudinal)




Elasticity modulus




Elongation at break




Tensile strength(transverse)




High temperature tensile strength(transverse)




Low temperature tensile strength(transverse)




Water resistance tensile strength(transverse)




Aging resistance tensile strength(transverse)




1. Sample water content less than 0.2% by weight.
2. Norm laboratory condition:(23±2)ºC and (50±10)% relative humidity.
3. The specifications marked with "a" only applies to I-shape strip otherwise, the specifications concluded between supplier and buyer through consultation, shall be written in contract or purchase order.

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Our Service

Before sales

1. introduce products in detail
2. recommend suitable solutions
3. provide with reference information

During manufacturing

1. provide with layout and engineering conditions
2. inform the processing status
3. offer related documents

After Sales

1. provide installation, commissioning and training
2. offer spare parts
3. Provide with necessary technical support




We have the production capacity of 100000 meters per day. For common specifications, they will be shipped in 10-15 working days after payment.

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For all specifications/shapes, they could be packaged in linear, the length will be 6 meters, or customized.
For the Shape "I", "C", and some simple shapes, they can be packed in rolls. 400-600 meters/roll.

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