Aluminum windows and doors sealing performance directly affects the sound insulation, waterproofing, thermal insulation effect, and sealing tape is one of the most important “invisible guardian”. Different materials, structure of the sealing tape, its durability, elasticity, aging resistance varies significantly. So, how to choose the right sealing tape? How do they affect the overall performance of windows and doors? This article will systematically introduce the classification of sealing tape materials, characteristics and its key role in aluminum windows and doors.
1. Ethylene propylene diene rubber (EPDM) sealing tape
Characteristics:
Excellent weather resistance, resistant to UV, ozone, high temperature (-50℃~150℃) and low temperature.
Good elasticity, strong resistance to compression and deformation, long service life (up to 20 years or more).
Resistant to chemical corrosion (acid, alkali, water vapor).
Disadvantages: poor resistance to some greasy substances.
Application: Widely used in building
Doors And Windows, curtain walls, automobile doors and windows.
2. Silicone rubber (Silicone) sealing tape
Characteristics:
Excellent resistance to high and low temperatures (-60℃~250℃).
Non-toxic and environmentally friendly, excellent aging resistance, suitable for extreme climate.
Good flexibility, but low mechanical strength, easy to be scratched.
Disadvantages: Higher cost.
Application: High temperature environment, food grade or medical equipment sealing.
3. polyvinyl chloride (PVC) sealing tape
Characteristics:
Low cost, good processing performance, can add plasticizer to adjust the hardness.
Resistant to oil, weak acid and alkali, but weather resistance is poor, easy to aging and hardening (life expectancy of 5-10 years).
Disadvantages: easy to be brittle at low temperature, easy to be deformed at high temperature.
Applications: low-end doors and windows, temporary sealing scenes.
4. Thermoplastic elastomer (TPE/TPV) sealing tape
Characteristics:
Both rubber elasticity and plastic processing performance, recyclable and environmentally friendly.
Weather resistance, oil resistance is better, but long-term compression and deformation performance is weaker than EPDM.
Application: middle and high-end doors and windows, automobile sealing.
Although small, the sealing tape is the “key line of defense” for the performance of aluminum alloy doors and windows. From EPDM (EPDM) weather resistance, to the temperature performance of silicone rubber, and then to the cushioning sealing ability of foam rubber strip, different materials and structures for different environmental needs. When purchasing, in addition to focusing on the material of the rubber strip, but also consider its installation method, compression resilience and aging resistance, to ensure that the sealing effect under long-term use.
High-quality sealing tape can not only improve the sound insulation, waterproof and thermal insulation performance of doors and windows, but also extend the service life of doors and windows. We hope that this article can help you understand the classification and selection skills of sealing tape more clearly, and bring a more comfortable and energy-saving experience for your home environment.
