Suzhou Polywell Engineering Plastics Co.,Ltd
We provide overall solutions of PA thermal break strips. Including the PA66GF25 granules, the extruder, the mold, the thermal break strips and the broken bridge aluminum frames.
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What are the different types of thermal barriers?
Currently, there are two principal types of thermal barriers: polyamide thermal barrier strip and pour & debridge (P&D).
Our company only produce polyamide thermal barrier strip.
What are the different types of polyamides?
Polyamide (PA) Polyamides are among the most important and proven technical thermoplastics, known for their heat resistance, stiffness and high mechanical stability Polyamides can be classified into different types, with PA 6, PA 6.6 and PA 12 most established on the market.
Our polyamide strips are made of PA6.6 reinforced by 25% fiberglass.
What does a thermal break do?
A thermal break is defined as a material with low thermal conductivity placed in an extrusion with the purpose of reducing the flow of thermal energy (heat). In aluminum windows, three types of thermal breaks are used. A standard pocket thermal break has been used in the window industry for decades.
How to storage polyamide thermal break strips?
First, Store profiles horizontally in order to prevent bending or twisting the material, otherwise long storage periods cause permanent sagging. Support long lengths.
Second, Maintain ambient temperature in the range from 15 to 20 °C.
Third, Protecting against moisture.
Why do you need a thermal break?
Why are thermal breaks important? Thermal breaks are essential for any external modern glazing system. Thermal bridging can be responsible for up to 30% of a property's heat loss. This lowers the homes energy efficiency, leading to higher heating bills.
Product Performance
| Item | Unit | GB/T 23615.1-2009 | PW-Technical specification |
| Density | g/cm3 | 1.3±0.05 | 1.28-1.35 |
| Linear expansion coefficient | K-1 | (2.3-3.5)×10-5 | (2.3-3.5)×10-5 |
| Vicat softening temperature | ºC | ≥230ºC | ≥233ºC |
| Melting point | ºC | ≥240 | ≥240 |
| Testing for tensile cracks | - | No cracks | No cracks |
| Shore hardness | - | 80±5 | 80-85 |
| Impact strength(Unnotched) | KJ/m2 | ≥35 | ≥38 |
| Tensile strength(longitudinal) | MPa | ≥80a | ≥82a |
| Elasticity modulus | MPa | ≥4500 | ≥4550 |
| Elongation at break | % | ≥2.5 | ≥2.6 |
| Tensile strength(transverse) | MPa | ≥70a | ≥70a |
| High temperature tensile strength(transverse) | MPa | ≥45a | ≥47a |
| Low temperature tensile strength(transverse) | MPa | ≥80a | ≥81a |
| Water resistance tensile strength(transverse) | MPa | ≥35a | ≥35a |
| Aging 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.
Packaging details:
For all shapes, they could be packaged in linear. We usually cut the strips in 6 meters each. We can also cut the strips based on the length you need.
For the some simple shapes such as type I and type C, they can be packed in rolls. We usually pack them in 400-600 meters per roll.
Lead time:
10-15 working days after receiving the deposit
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