Composite Manhole Cover
Composite manhole covers are modern infrastructure solutions designed for urban, industrial, and public spaces, offering high load-bearing capacity, corrosion resistance, and long service life.
Sterplas GRP (Glass Reinforced Plastic) manhole covers stand out as a lightweight, non-corrosive, and maintenance-free alternative to traditional concrete and cast iron covers.
Manufactured using high-strength polyester resin reinforced with glass fiber, composite manhole covers provide exceptional durability and reliability under heavy traffic conditions. They are widely used in city infrastructure, industrial zones, and public projects.
Let’s determine the right load class composite manhole cover solution for your project together.
Why Sterplas?
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Over 35 years of composite manufacturing experience (since 1986)
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Production compliant with European standards (ISO & CE)
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Proven solutions for stadiums, sports complexes, and public projects
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OEM manufacturing and project-based design support
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Infrastructure suitable for high-volume serial production
Why Sterplas Composite Manhole Covers?
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Does not rust, rot, or crack
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High resistance to UV rays and harsh weather conditions
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Strong structure suitable for heavy pedestrian and vehicle traffic
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Retains color and form for many years
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Hygienic and easy to clean
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Available with fixed or hinged installation options
Technical Specifications
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High load capacity
(A15 – B125 – C250 – D400 load classes) -
Complete resistance to corrosion and rust
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Anti-slip surface design for safe use
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Lightweight structure for easy installation and maintenance
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Noise-free operation
(silent compared to metal covers)
Areas of Use
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Municipal infrastructure and city projects
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Roads, sidewalks, and parking areas
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Industrial facilities
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Residential and housing projects
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Telecommunications and electrical infrastructure
Quality & Performance
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Designed for high pedestrian and vehicle traffic
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Long service life with low maintenance cost
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Suitable for both indoor and outdoor use
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Resistant to impact, vibration, and environmental conditions
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Technical support and engineering consultancy throughout the project
Custom Production & Design
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Custom dimensions and load class production
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Lockable and hinged cover options
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Logo, text, and color customization
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OEM & private label manufacturing
REFERENCES
Sterplas composite manhole covers are widely preferred across Türkiye in municipal, industrial, and infrastructure projects for their durability, safety, and long-term performance.
PRODUCTION SAMPLES
Durable, aesthetic, and high-performance composite manhole cover application examples.
