QINGDAO JUNHENG EQUIPMENT MANUFACTURING CO,.LTD
Advantages of polyurethane sealing strips
Release time:
2022-01-25 00:00
Source:
The most common types of sealing strips on the market are: 1. Fuzzy sealing strips, widely used in aluminum alloy doors and windows; 2. Rubber strips, most commonly found on fire doors and heavy doors; 3. Polyurethane sealing strips, which are used on wooden doors and security doors. The first two types have a certain price advantage compared to the latter, but from a long-term perspective, polyurethane sealing strips play a crucial role in doors and windows. Polyurethane sealing strips are highly plastic in terms of craftsmanship and come in various shapes.
Polyurethane sealing strips have many advantages, thanks to their plasticity.
High and low temperature resistance: Often, based on customer needs, special treatments are applied to the surface film, adding fire-resistant materials. They can be used for over 1000 hours at sustained high temperatures above 200 degrees. In extremely cold weather, they can still function smoothly without damaging the surface tension or tearing the film surface due to weather conditions. Tests have shown that the lifespan of polyurethane sealing strips used in extremely cold conditions is shorter than under normal usage, indicating that extreme cold does have some impact on polyurethane sealing strips, but their performance remains unaffected.
Good sealing performance: When we take a polyurethane sealing strip and look at its cross-section, we can see that the foamed polyurethane presents a honeycomb structure. Objects with a honeycomb structure have excellent sound insulation properties, and when closing doors or windows, there is almost no gap, unlike fuzzy sealing strips that spread out after being compressed.
Long service life: Among these sealing strips, polyurethane sealing strips generally have a longer service life than the first two and are less likely to yellow like rubber strips, which become significantly polluted over time. Polyurethane sealing strip products are environmentally friendly.Non-toxic and odorless, with good elasticity and flexibility. Made from 100% high-quality silicone raw materials and subjected to strict testing, they meet environmental protection standards.
Energy-saving: We all know that good sealing performance prevents indoor temperatures from dissipating easily, which can significantly reduce the energy consumption of electrical appliances, thus achieving energy-saving effects.
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