Sika to unveil Ullit's new composite tank for CNG trucks

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Photo by Ullit

France-based Ullit SA manufactures light tanks and all-composite compressed natural gas (CNG ) IV high-pressure vessels for natural gas vehicles. This latest tank design, which Sika Advanced Resins will be showcasing at JEC World 2019,  incorporates a tailor-made epoxy system designed by Sika, a leading specialist in the development and production of high-performance resins.

The 320-litre tank has the same dimensions as a conventional diesel fuel tank and fits into the same place in the truck, with no need for modifications of any kind.

The filament-wound tank is one of the fruits of a ten-year collaboration with Sika Advanced Resins, said Ullit founder and CEO Claude Hembert. The resin developed by Sika for Ulit’s new range of high-pressure tanks can be adapted to all design constraints, even for the company’s very high-pressure hydrogen tanks, i.e., up to 700 bar.

In combination with carbon fibre, the resin provides mechanical resistance for different tank shapes including those for vehicles running on natural gas. 

“Ullit-Sika composites reduce the weight of the tank by a factor of four, a huge benefit when we estimate that one tonne saved on a truck saves four litres of fuel per 100 kilometres in urban traffic," said Patrick Noirclerc, local expert composites at Sika Advanced Resins.

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