PPG has unveiled a partnership with Renault-Nissan Alliance to deliver structural adhesives to more than 1m Renault, Nissan and Samsung cars across Europe, Asia, North America and South America.

Structural adhesives reduce the use of spot-welding in the manufacturing of cars. This delivers significant weight savings, resulting in improved fuel economy and reduced emissions.

Reducing the overall weight of a car by 10% improves fuel efficiency by 6% to 8%, according to the US Department of Energy.

Structural adhesives also strengthen the bind between car parts as they provide a continuous line of glue rather than interval welds, resulting in reduced vehicle vibration and a more comfortable ride.

The partnership involved testing at PPG's tech centre in Saint-Just-en-Chaussée, and Renault Nissan plants, as well as designing new chemical formulations to enhance the glue's performance.

"Our chemists and engineers worked side by side with Renault Nissan's designers and manufacturing teams across Asia, the Middle East and Europe to deliver this technology," said PPG global business director, automotive adhesives and sealants (A&S), Maxime Goldberg.

"This collaboration is a key step forward for PPG's business and sends a strong message to our customers we are committed to developing tailor-made products."