Our Thermal Break Strips for Aluminum Windows are industrial-grade insulation components crafted from PA66GF25 (Polyamide66 Reinforced by 25%Glass Fiber), the flagship product of Shuangming Plastic with over 20 years of manufacturing expertise. Sourced from BASF raw materials and boasting a monthly production capacity of 500+ tons, these precision-engineered strips comply with GB/T 23615.1-2009 and international standards like EU EN 14024 and AAMA 810. Designed for thermal break aluminum profiles, they feature a standard single black color with customizable laser printing, supplied in roll or linear transport packages. As a core material for energy-efficient building design, these strips eliminate thermal bridging in aluminum window frames, balancing superior insulation performance with structural durability, and support custom sizing for perfect project fitting.
Model NO. | SM-D155 | Customized | Customized |
Material | Polyamide66 Reinforced by 25%Glass Fiber | Color | Single Color（Black） |
Application | for Thermal Break Aluminum Profile | Raw Material | PA66 GF25 Granules |
Markets Served | Windows & Doors | Technical Performance | GB/T 23615.1-2009 |
Customized Laser Printing | Transport Package | Roll or Linear | |
Material Properties | High Temp Resistance （≥220 °C） | HS Code | 3926909090 |
Our factory specializes in GF25 Reinforced Polyamide 66 Strips with 20+ years of expertise, using BASF raw materials and 500+ tons/month production capacity.
PA66GF25 Thermal Break Strips deliver an ultra-low thermal conductivity of only 0.3W/(m·K), far lower than PVC (1.0W/(m·K)) and ordinary nylon (0.5W/(m·K)). Windows fitted with these strips achieve a thermal conductivity of 0.25W/m·K, boosting energy efficiency by 60% and reducing building energy consumption by 15%-20%, which meets green building certification requirements (e.g., GB/T 50378).
With tensile strength ≥150MPa and flexural strength ≥200MPa, the strips feature a ±0.1mm manufacturing tolerance, perfectly matching standard thermal break aluminum profile grooves (14.8mm/20mm). This precision prevents air leakage and seal failure caused by dimensional deviations, ideal for high-end customized system windows and doors.
Stable from -40℃ to 120℃ with zero deformation, the strips adapt to arctic and desert climates without structural damage from thermal expansion. Infused with UV and weather-resistant agents, they pass the 1000-hour ISO 9227 salt spray test and 5000-hour GB/T 1865 artificial aging test, retaining over 90% performance after 20 years of outdoor use.
The strips are ROHS (lead/cadmium-free), UL94 V-0 (flame retardant) and REACH-certified with zero VOC emissions. They contain no halogens or harmful volatiles, ensuring odor-free installation and compliance with European and American safety standards for medical and residential building applications.
High-precision Production: ISO 527 tensile test compliance and multi-chamber design eliminate thermal bridging, delivering U-values ≤1.8W/(㎡·K).
Strict Raw Material Control: In-house polyamide granule production lines with random batch inspections for glass fiber content and melt index guarantee raw material purity.
Customization Capability: Support for custom extruded polyamide strips and laser printing meets diverse project design requirements.
Exceeding National Standards: Our technical specifications outperform GB/T 23615.1-2009 in key indicators (Vicat softening temperature ≥240℃, impact strength ≥40KJ/m²).
Mass Production Capacity: 500+ tons monthly output ensures on-time delivery for large-scale construction projects.
Windows equipped with Thermal Break Strips for Aluminum Windows achieve a thermal conductivity of 0.25W/m·K, boosting energy efficiency by 60%.
NO. | Item | Unit | GB/T 23615.1-2009 | SM-Technical specification |
1 | Density | g/cm³ | 1.3±0.05 | 1.28-1.35 |
2 | Linear expansion coefficient | K⁻⊃1; | (2.3-3.5)×10⁻⁵ | (2.3-3.5)×10⁻⁵ |
3 | Vicat softening temperature | °C | ≥230 | ≥240 |
4 | Melting point(0.45MPa) | °C | ≥240 | ≥255 |
5 | Testing for tensile cracks | - | No cracks | No cracks |
6 | Shore hardness | - | 80±5 | 80-85 |
7 | Impact strength(Unnotched) | KJ/m² | ≥35 | ≥40 |
8 | Tensile strength(longitudinal) | MPa | ≥80 | ≥84 |
9 | Elasticity modulus | MPa | ≥4500 | ≥4600 |
10 | Elongation at break | % | ≥2.5 | ≥4 |
11 | Tensile strength(transverse) | MPa | ≥70 | ≥80 |
12 | High temperature tensile strength(transverse) | MPa | ≥45 | ≥50 |
13 | Low temperature tensile strength(transverse) | MPa | ≥80 | ≥85 |
14 | Water resistance tensile strength(transverse) | MPa | ≥35 | ≥45 |
15 | Aging resistance tensile strength(transverse) | MPa | ≥50 | ≥60 |
The multi-chamber design of PA66GF25 Window Insulation Bars eliminates thermal bridging, delivering U-values ≤1.8W/(㎡·K).
