Tankline were contracted to install our Glass-Line laminate lining system to the base of a bolted steel leachate tank. Leachate is highly aggressive to concrete due to its elevated alkalinity and chemical content. Concrete substrates are also inherently porous and prone to microcracking, meaning a robust, chemically resistant lining system is essential to prevent premature failure.
The Glass-Line system is specifically designed to provide long-term protection in aggressive environments. It utilises a vinyl ester epoxy novolac resin combined with 600 g/m² chopped strand matting (CSM), installed with 50 mm overlaps to ensure continuity and structural integrity across the laminate.
The matting is fully wetted out and consolidated using bristle rollers to remove entrapped air and achieve a resin-rich, uniform laminate. This process minimises sharp fibres, eliminates print-through, and produces a smooth, durable lining with excellent chemical resistance.
To further enhance performance, two additional coats of vinyl ester epoxy novolac resin were applied at approximately 500 microns per coat, achieving a high total film build. This multi-layer approach delivers exceptional durability and long service life, placing Tankline’s Glass-Line installations ahead of many alternative laminate systems in terms of quality and longevity within our wider specialist lining services portfolio.
Surface Preparation – Critical to Glass-Line Performance
Surface preparation is one of the most critical factors in the success or failure of any lining system. New concrete typically contains a surface layer of laitance, and failure to remove this weak layer will almost certainly lead to future delamination.
Tankline utilised our Diamond-Grind concrete preparation system to mechanically remove all laitance and surface contamination. Following grinding, the substrate was thoroughly vacuum cleaned to remove all dust and debris, ensuring a clean surface suitable for resin application.
A resin primer coat was then applied to seal the concrete, penetrate the exposed substrate, and promote optimal adhesion between the concrete and the Glass-Line laminate system.
Where required, additional mechanical preparation methods such as abrasive blast cleaning can also be specified depending on substrate condition and site constraints.
Quality Control and Climatic Monitoring
Quality control remains essential throughout the Glass-Line installation process. Climatic conditions were continuously monitored and recorded to ensure temperature, humidity, and dew point remained within the resin manufacturer’s specified limits. This controlled approach ensures correct curing, consistent laminate quality, and long-term performance in aggressive leachate environments.
By combining rigorous preparation, resin priming, controlled laminate application, and strict quality control, Tankline’s Glass-Line system delivers a high-performance lining solution engineered for durability in chemically aggressive leachate tank bases.
For organisations requiring experienced industrial tank lining contractors capable of delivering compliant, high-specification GRP laminate systems, Tankline provides a technically robust and fully quality-controlled solution.
