1. Material differences lead to significant performance differencesTaking the case of Ms. Wang, a homeowner in Beijing, as an example, PVC sealing strips have a lifespan that is more than 50% shorter than EPDM, resulting in paying nearly a thousand yuan more in heating fees each year
2. Market chaos is widespread:According to a survey conducted by the Guangdong Doors and Windows Association, 72% of household sealing strips have material misjudgments in their selection
3. The invisible function has a significant impactAs the "invisible guardian" of doors, windows, cars, and home appliances, sealing strips are directly related to core performance such as sound insulation, thermal insulation, and waterproofing
4. Significant long-term economic differencesHigh quality EPDM sealing strips have a lifespan of 15-20 years, while inferior products only last 2-3 years, resulting in a long-term cost difference of over 10 times
