Resin Manhole Cover (Composite Manhole Cover)

The Application and Advantages of Resin Manhole Covers
Resin manhole covers are playing an increasingly important role in our daily lives. They stand out due to their self-cleaning properties and wide range of applications.

When used on roadways, resin manhole covers offer several benefits: they are electrically insulating, noiseless, have no recyclable value, and are naturally theft-resistant—making them an irreplaceable alternative to traditional cast iron covers.

Manufactured through a unique molding process, resin manhole covers bring a fresh aesthetic to urban environments. With a typical service life of 20 to 50 years, these high-temperature-formed composite covers offer a range of advantages: lightweight yet high strength, excellent fatigue resistance, safety in case of breakage, easy molding, low noise when driven over, strong chemical and acid/alkali resistance, and a clean, attractive appearance. Additionally, they help reduce pollutants in wastewater.

Currently, manufacturers use a variety of materials to produce composite manhole covers, but the main features are largely similar:

Excellent Anti-Theft Performance
Composite covers are generally made from unsaturated resin, fiberglass, and other materials through a specialized high-temperature one-step molding process. The finished products have no recyclable value, and even extracting the internal reinforcement (such as steel bars) is extremely difficult.

Long Service Life
By using high-performance resins, fiberglass, and special production formulas, these covers ensure deep resin penetration into the fibers, significantly enhancing the bonding strength. This prevents internal damage under cyclic loading, ensures long-term durability, and avoids common problems like poor adhesion seen in inferior products.

High/Low Temperature Resistance, Excellent Insulation, and Strong Corrosion Resistance
The product is corrosion-resistant, non-toxic, and free of metal additives. It can be used in demanding and harsh environments. Covers produced by Baisite have passed national authoritative testing, with outstanding performance in acid and alkali resistance, corrosion resistance, and anti-aging—meeting all relevant quality standards.

Attractive and Practical, Premium Appearance
Custom designs are available to meet high-end client requirements. Complex logos and multiple colors can be integrated onto a single cover, delivering detailed graphics with bright, distinct colors. The surface can also be made to simulate various stone textures and colors to match surrounding pavement.

Strong Load-Bearing Capacity
The bottom structure of the cover features a special design. The continuous reinforced fibers used are integrated with fiberglass cloth, ensuring a solid structure and providing excellent load-bearing performance.

Eco-Friendly, Anti-Slip, and Low Noise
When driven over by vehicles, the cover remains non-slip, produces no harsh noise, and causes no pollution—making it a safer and more environmentally friendly solution.