Long-Term Protection for Wastewater Infrastructure
Calcium aluminate solutions for durability, sustainability, and peace of mind.
When it comes to protecting water and wastewater infrastructure, prevention is everything. That’s why Contech partners with Imerys, global leaders in calcium aluminate technology, to deliver long-term protection for both new and existing assets.
Whether you’re building new infrastructure or repairing aging concrete, our Imerys solutions offer outstanding resistance to biogenic corrosion and decades of proven performance – backed by global science and applied locally by Contech.
Sewper Liner: for new wastewater infrastructure
Protect new concrete structures with this thin spray-applied lining, delivering exceptional H₂S corrosion resistance without compromising hydraulic capacity.
To find out more, visit our Sewper Liner page.
SewperCoat: for repairing existing structures
Restore strength, stop infiltration, and resist biogenic corrosion in the harshest sewer environments, with a repair system proven worldwide for over 40 years.
To find out more, visit our SewperCoat page.
Why choose Contech + Imerys?
At Contech, sustainability isn’t an afterthought: we believe the greenest structure is the one that doesn’t need replacing, so we prioritise extending asset lifespans and minimising waste. That’s why we’ve partnered with Imerys: their calcium aluminate technologies – Sewper Liner for new assets and SewperCoat for repairs – help us deliver durable, long-lasting protection to wastewater infrastructure in a way that avoids frequent, resource-heavy refurbishments.
By choosing Imerys solutions, clients lower their environmental impact in two key ways: materially, by reducing demolition and rebuilds; and operationally, by cutting out future interventions. These systems are designed for longevity and applied efficiently – which means fewer carbon emissions, less resource use, and more funds channelled toward future‑forward sustainability initiatives.
This approach aligns perfectly with Contech’s wider philosophy – solving today’s challenges in a way that safeguards the environment and communities for generations to come. Read more about our approach to sustainability here.
Global innovation. Local expertise.
Imerys brings world-leading materials science to infrastructure projects around the globe; and Contech brings that innovation home. From wastewater plants and pump stations to tunnels and treatment tanks, we know the local conditions and what it takes to make repairs last and new builds endure.
Let’s talk about how we can support your next project.