Fuel tank emissions
As regulators aim to reduce the overall environmental impact of small off-road engines, limiting evaporative emissions from fuel tanks has become an area of focus. As a result, CARB amended its small off-road engine rules to increase the stringency of procedures used to test evaporative emissions.
Traditionally, manufacturers have used high-density polyethylene (HDPE) for small engine applications, but this can allow increased emissions permeation and reduced durability. In the 1990s, DSM partnered with OEM customers and regulatory agencies to better understand these challenges and develop a solution.
As a result, DSM launched Akulon Fuel Lock nylon/polyamide (PA6) monolayer technology in 2011. Today, leading global manufacturers have trusted Akulon for seven years, and the third-generation technology continues to deliver superior performance versus HDPE.