Sustainable HDPE fuel tanks: EPA-compliant solutions

Understanding fluorination risks in HDPE tanks

Fluorination has long been the standard for creating a permeation barrier in HDPE fuel tanks. However, recent EPA findings highlight the presence of Per- and Polyfluoroalkyl Substances (PFAS) as a byproduct of the fluorination process. PFAS, often referred to as “forever chemicals,” are now classified as potential violations under the Toxic Substances Control Act (TSCA).

The letter issued by the EPA in 2022 warned manufacturers, processors, distributors, and users of fluorinated HDPE containers about PFAS contamination risks. This poses significant challenges for manufacturers of small gas tanks for outdoor power equipment (OPE), such as lawn mowers, ATVs, and snowmobiles. Fluorinated HDPE tanks risk eroding over time, leading to emission leaks and non-compliance with TSCA standards. This increases the likelihood of fines, equipment recalls, and environmental concerns, making fluorinated HDPE tanks a risky option for long-term compliance.

A safer, sustainable alternative: Akulon® Fuel Lock

Envalior’s Akulon® Fuel Lock is a proven solution for meeting EPA and CARB regulations without the risks associated with fluorination. Designed specifically for OPE fuel tanks, Akulon Fuel Lock offers:

• Exceptional emissions barrier: The material creates a barrier six times stronger than required by EPA standards, ensuring low permeation and compliance over the tank’s lifetime.

• Cost and weight reduction: Its monolayer design allows thinner tank walls, reducing material usage and overall weight.

• Streamlined production: Unlike fluorinated HDPE, Akulon Fuel Lock eliminates the need for multilayer coatings or secondary treatments, simplifying production processes and lowering costs.

Since its launch in 2011, Akulon Fuel Lock has enabled manufacturers to reduce their carbon footprint, eliminate the use of hydrofluoric acid, and minimize shipping costs by removing unnecessary processing steps. These benefits help OPE manufacturers maintain credibility as environmental stewards while avoiding the compliance risks associated with fluorinated HDPE.

Eliminating EPA fines and recall risks

With Akulon Fuel Lock, manufacturers can confidently comply with stringent evaporative emission regulations. The material guarantees consistent performance, providing a long-lasting barrier against emissions for the entire product lifecycle.

Unlike fluorinated HDPE tanks that require repeated certification for treated surfaces, Fuel Lock’s inherent barrier properties ensure uniform quality across all tanks. Its permeation rate, less than 20% of the EPA limit, effectively eliminates risks of non-compliance, EPA fines, and costly recalls. Additionally, Akulon Fuel Lock integrates seamlessly into existing manufacturing processes, requiring no tooling changes – making it a drop-in solution for manufacturers.

Switch to Akulon® Fuel Lock and take the first step toward sustainable and compliant fuel tank manufacturing. Contact us today or visit plasticsfinder.envalior.com to learn more about our innovative solutions for outdoor power equipment.