We use helibore pipe to make our stormwater attenuation tanks, culverts and tunnels. Designed to Hig...
For Internal Drainage Boards and local authorities facing repeated extreme weather events, our helibore corrugated steel pipes are manufactured from galvanised steel coil with a tough, rugged Trenchcoat polymer secondary coating. The Trenchcoat is laminated to each side of the galvanised steel coil prior to the pipe manufacturing process. This becomes an integral part of the product, providing a BBA Certified add on life of 50 years for storm water drains. It can withstand abuse during fabrication, handling and installation so it doesn’t limit design options. The coating resists corrosion and abrasion.
Corrugated steel pipe that is manufactured with Trenchcoat combines the benefits of steel and plastic, maximum strength with low handling weights and resistance to aggressive environments both soil-side and internally.
It can withstand sand clay run off and gravel bedload, without losing its adhesion to metal. It also possesses superior abrasive resistance over metallic coatings and asphalt dipped coatings.
It resists virtually all acids, salts found in tidal waterways and alkaline commonly found in most storm drains and culvert systems.
Coating adds virtually no weight, so pipe can be handled, moved and installed more easily than concrete pipe.
The film is not affected by extreme cold or heat found during winter or summer installations.