Glass Reinforced Polyester Pipe & Fittings
Superlit is a flexible glass reinforced polyester (GRP) pipe system suitable for pressure and non pressure water supply, wastewater and industrial applications.
Products
GRP Jacking Pipe
Our Glass Reinforced Polyester (GRP) jacking pipes offer high axial strength for trenchless micro-tunnelling and relining applications.
GRP Manholes
GRP manholes form an integral part of buried gravity sewage and wastewater networks, allowing surface access to the system for pipeline inspection and maintenance.
Non-Circular GRP Pipe & Fittings
Non-circular Glass Reinforced Polyester (GRP) pipe and fittings are suited for both the trenchless rehabilitation and open-trench construction of sewage and wastewater pipelines.
WHAT IS GRP PIPE AND WHY WE RECOMMEND IT
GRP (Glass Reinforced Polyester) pipe provides industry-leading strength, ultra-lightweight handling and advanced corrosion resistance.
Key benefits of GRP pipe systems include:
- Durable: With a 100+ year service life, GRP is UV and weather-resistant for above-ground use and resistant to corrosion, with no need for coatings, sleeving or cathodic protection. As a non-conductive material, GRP is unaffected by stray or induced currents.
- Agile: 75–90% lighter than alternatives, reducing installation time and cost.
- Efficient: A smooth internal bore minimises friction loss and pump energy use, while GRP pipe reduces water hammer and surge mitigation costs through lower celerity.
- Easy installation: No special tools required. EDPM coupling is easy to join.
- Adaptable: Compatible with Australian PVC Series 2 and ductile iron systems, with custom fittings available for project-specific needs.
APPLICATIONS FOR GRP PIPES AND FITTINGS
Our GRP pipes and fittings are suitable for potable, non-potable, and industrial pipeline settings.
Typical applications for GRP pipes include:
- Pressure & non pressure pipelines
- Below & above-ground applications
- Potable & non-potable water applications
- Wastewater & irrigation systems
- Detention & cooling systems
- Industrial & petrochemical applications
Combining Superlit’s global expertise in composite manufacturing with our local knowledge and project support, we offer advanced GRP solutions across Australia.
Our GRP pipe systems incorporate an advanced manufacturing system that precisely optimises the distribution of glass fibres throughout the pipe wall. This industry-leading approach significantly enhances the accuracy of pipe design and enables more reliable prediction of long-term performance under different conditions.
Each layer of our GRP pipe performs a distinct and essential function. The innermost layer is composed of flexible resin, forming a sealed barrier to prevent any fluid or solid ingress into the structural core. The structural layers themselves are tailored to meet specific design pressures and stiffness requirements, while the outer surface layer protects the pipe during handling and installation and provides resistance to ultraviolet (UV) degradation.
This layered, performance-driven structure helps deliver on our commitment to precision and long-term asset reliability in our GRP pipe systems.
PARTNERING WITH SUPERLIT
With over 50 years of experience, Superlit is a global manufacturer of GRP pipes, supplying critical infrastructure projects across five continents. Known for their innovation and quality, Superlit uses advanced manufacturing techniques such as Continuous Filament Winding (CFW) and Centrifugal Casting (CC) to produce pressure and non-pressure GRP pipes that meet the highest international standards.
With Clover’s deep industry expertise and unique service model, combined with Superlit’s cutting-edge technology, we provide a seamless, end-to-end service that guarantees peace of mind at every stage of your GRP pipeline project.
WHY OUR GRP IS THE SUSTAINABLE CHOICE
As our trusted partner in GRP solutions, Superlit is committed to reducing environmental impact across every stage of production. As the first GRP pipe manufacturer with an Environmental Product Declaration (EPD) verified to ISO 14025 and EN 15804, Superlit sets the benchmark for sustainability in the GRP sector.
The EPD tracks key environmental metrics including energy and water use, emissions, resource consumption and carbon footprint, providing full transparency across the product lifecycle.
By choosing our GRP pipe systems, you are selecting a high-performance pipeline solution that supports climate goals and responsible resource management without compromising on durability or quality.
Project Case Studies
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