Creating an effective trench cover requires more than just a slab of material. To truly solve common sanitation issues in urban drainage systems, we must address two critical aspects: mosquito-proof structural design and odor-resistant materials.

Mosquito-Blocking Performance of FRP Grating: Precision Openings as the First Line of Defense

When we talk about mosquito prevention, we often think of screens or nets. Our FRP (Fiberglass Reinforced Plastic) grating adopts a similar principle—using precision-sized openings to prevent mosquitoes from entering the drainage system and laying eggs.

Our mosquito-resistant FRP grating is specifically designed to balance both airflow and pest exclusion. The aperture size is optimized to allow for efficient water drainage while keeping mosquitoes out. Moreover, FRP is highly corrosion-resistant and weather-durable. It can withstand prolonged exposure to rain, wastewater, and UV radiation without rusting or degrading, and has a service life of over ten years.

Unlike traditional iron covers or plastic meshes that can deform or loosen over time, our FRP grating excels in both durability and pest control, making it a vital component in modern urban disease prevention infrastructure.

Odor-Blocking Features of FRP Covers: Airtight Sealing and Chemical Stability Are Essential

Beyond pest control, FRP’s airtightness and chemical stability make it an excellent material for odor management. The high-density manufacturing process of FRP prevents gases from penetrating the material, while precision-engineered joints reduce the risk of odor leakage.

Additionally, our FRP covers are resistant to common wastewater contaminants such as organic acids, oils, and cleaning chemicals. Even in environments with high temperatures, humidity, and heavy grease exposure—like traditional markets or food courts—FRP maintains its structural and sealing performance.

In fact, after installing our FRP odor-control system in a market in Hsinchu, TVOC (Total Volatile Organic Compounds) levels dropped by approximately 35%. Residents reported, “We don’t have to hold our breath when passing by anymore,” proving the effectiveness of our trench covers in odor reduction.

Stable Resin Concrete Bases: The Structural Foundation for Mosquito and Odor Control

While many overlook the base structure, it's actually the foundation of the system. Even the best trench cover is compromised if the base is unstable or has poor sealing—mosquitoes and odors will find their way in.

That’s why All Leader strongly recommends pairing FRP covers with our modular resin concrete base system. These bases are designed for compressive strength, precise alignment, and seamless integration, ensuring they fit tightly with our FRP grating while withstanding ground movement and temperature changes without forming gaps.

Thanks to their modular design, these bases also offer greater flexibility during installation and maintenance, helping maintain a long-lasting seal. In a community project in Taichung, mosquito monitoring conducted over three months after installation showed that adult mosquito counts dropped by nearly 50%—clear evidence that an integrated base-and-cover system is the fundamental solution for enhancing urban hygiene.

Conclusion: The Right Materials Make Cities Fresher and Safer

From mosquito prevention to odor control, every material choice—from cover to base—has a direct impact on air quality and public health. With rising risks of diseases like dengue and enterovirus, All Leader understands the critical role that drainage systems play in the health of a city.

As a professional supplier, we proudly offer a complete solution: FRP trench covers and modular resin concrete bases—not just as a set of products, but as a long-term strategy to protect urban hygiene.

If you’re planning to upgrade community drainage, municipal roads, or public facilities, now is the perfect time to reassess your trench cover systems. Start with better materials and let your city become fresher, safer, and more resilient.

For more information, please visit our website: https://www.all-leader.com/contact