Dust removal bag made of PTFE: durable and leak resistant under strong corrosion conditions
Sep 25,2025
Under strong corrosive conditions such as chemical, electroplating, and waste incineration, ordinary dust removal bags will be eroded by acidic and alkaline flue gas within 3-6 months. Frequent bag replacement is both costly and downtime. The PTFE material dust bag solves this pain point by relying on its strong corrosion resistance, and is suitable for high corrosion industrial scenarios overseas, with durability and stable compliance.
1、 Core advantage: Anti corrosion, durable and leak proof
1. Wide range of corrosion resistance
PTFE bags have a pH resistance range of 0-14 and can withstand strong corrosive media such as SO ₂ and Cl ⁻. Even in high concentration acid mist in the chemical industry, there will be no corrosion perforation, and the service life of PTFE bags is extended by more than 5 times compared to ordinary polyester bags.
2. Anti leakage design
The surface is treated with film coating, with uniform micropores and strong sealing. It not only intercepts 0.1 μ m fine dust (with a capture rate of 99.9%), but also prevents corrosive gas from penetrating and damaging the bag body, avoiding environmental fines caused by dust leakage.
3. Temperature resistance and aging resistance
Long term temperature resistance of 180 ℃, short-term resistance of 260 ℃, suitable for high temperature corrosion scenarios in chemical and metallurgical industries, will not cause aging and brittle cracking due to temperature fluctuations, further extending the service life.
2、 Foreign trade adaptation: compliance+regional customization
1. Full compliance certification
The material has passed SGS testing and meets EU REACH and US FDA standards. Exporting to European and American chemical companies does not require additional material audits, resulting in a 50% increase in customs clearance efficiency.
2. Adaptation to regional working conditions
High temperature corrosion zone: Add anti UV coating to prevent accelerated aging caused by high temperature exposure;
High humidity corrosion area: Conduct hydrophobic treatment to avoid damage to the cloth bag caused by the superposition of water vapor and corrosive media.
3、 Actual benefits: cost reduction and worry free
Although PTFE bags are 30% more expensive than ordinary bags, they have a lifespan of 2-3 years. The number of bag changes per year has been reduced from 4 to 1, saving over $20000 in filter material procurement costs and downtime losses (calculated based on 100 bag units). They are a cost-effective choice for strong corrosion conditions.
For overseas enterprises with strong corrosion conditions, choosing PTFE dust removal bags is not about "spending extra money", but about "saving trouble" - corrosion-resistant, durable, less bag replacement, and able to meet environmental standards, completely solving the problem of bag leakage in corrosive scenarios.
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