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Thermal Break Profile Nylon Extrusion Heat Insulation Bar in Windows and Doors

Categories Thermal Break Strip
Place of Origin: China
Brand Name: Polywell
Model Number: CT
Supply Ability: 100000 meters per day
MOQ: 5000 meters
Price: Negotiation
Packaging Details: Linear or roll
Delivery Time: 10-15 working days
Payment Terms: T/T
Certification: SGS
Material: Polyamide66 Reinforced by 25%Glass Fiber
Color: black
Application: For Thermal Break Aluminum Profile
Port: Shanghai
Refractoriness: 200-450°C
Apparent Density: 1.25-1.35 g/cm3
Production Capacity: 100000 M/Day
Technical Performance: GB/T 23615.1-2009
Life: More Than 40 Years
Transport Package: Roll or Linear
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    Thermal Break Profile Nylon Extrusion Heat Insulation Bar in Windows and Doors

    CT Shape 14.8-25.3mm Thermal Break Polyamide Extrusion Strip

    Production Description

    Shape CT extrusion thermal barrier strip for aluminium window profiles. Inserted in the thermal break aluminium profiles, and being the part of energy-saving window system for reducing heat conduction. The shape CT polyamide thermal barrier material can prevent the window frame from dust and water, also has a more beautiful appearance than the shape I, could realize a better Uf value by sealing with a rubber profile, mostly used on the sash.
    For the shape CT, we can provide the following size or customize according to customers' requirements.

    Over the years, polyamide heat-insulation strip has been widely used in glass curtain walls due to its good properties and low cost. Especially Polyamide 66 reinforced by 25% glass fiber thermal break strips, they are inserted into aluminum window, door and facade profile for thermal insulation.


    1. Effectively increased thermal in the system property insulation.
    2. Reduces condensation on the window.
    3. Sound insulated.
    4. Improve comfort and living condition.
    5. Possible double color coatings provide better aesthetic effect.
    6. Various shapes will be designed for the customer's requirements.
    7. 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.
    8. High corrosion-resistance, weather-resistance, heat-resistance, alkali-resistance and long life of usage.
    9. linear thermal dilation coefficient almost identical to that of aluminium profiles.

    Polywell PA66 GF25 thermal barrier strips Performance Table

    NO.ItemUnitGB/T 23615.1-2009Polywell-Technical specification
    Material Properties
    2Linear expansion coefficientK-1(2.3-3.5)×10-5(2.3-3.5)×10-5
    3Vicat softening temperatureºC≥230ºC≥233ºC
    4Melting point(0.45MPa)ºC≥240≥240
    5Testing for tensile cracks-No cracksNo cracks
    6Shore hardness-80±580-85
    7Impact strength(Unnotched)KJ/m2≥35≥38
    8Tensile strength(longitudinal)MPa≥80a≥82a
    9Elasticity modulusMPa≥4500≥4550
    10Elongation at break%≥2.5≥2.6
    11Tensile strength(transverse)MPa≥70a≥70a
    12High temperature tensile strength(transverse)MPa≥45a≥47a
    13Low temperature tensile strength(transverse)MPa≥80a≥81a
    14Water resistance tensile strength(transverse)MPa≥35a≥35a
    15Aging resistance tensile strength(transverse)MPa≥50a≥50a

    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.

    Storage Conditions

    The strips will be stored in the ventilated and dry environment, horizontally placed, paying attention to waterproof, keeping away from the heat source, avoiding heavy pressure and the contact with acid, alkali as well as organic solvent.


    We have the production capacity of 100000 meters per day. For common specifications, we have molds , and will be shipped in 10-20 working days after receiving the deposit.


    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.

    Our Service

    1. Expertise in the production of standard polyamide thermal break strips.
    2. Respect customers' needs, provide customized products, try best to satisfy customers' requirements.
    3. Fast service and on-time delivery
    4. Strict quality control system, each production process will be strictly supervised by us.
    5.We can provide all products on the insulation strip production line and the technical support.

    Our Company

    Please feel free to contact us if you have any questions.
    Name: Lana Lou
    Phone: +8613812855067 (WhatsApp)
    Skype: live:lana_lou_5

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