Applications / Automotive / Fuel Tanks

Automotive

EVAL™ enables to produce lighter fuel tanks with very low evaporative emissions.

Tank Applications

Benefits of EVAL™ Plastic Fuel Tanks vs. Steel

Multi-layer plastic fuel tanks stand up to steel. They are:

material share 2015



Why EVAL™?

Using EVAL™, plastic fuel tanks use the combination of the HDPE for its mechanical properties and the unique chemical properties of EVAL™. Using an EVAL™ layer within the multi-layer structure, the tank is chemically resistant and provides excellent gas barrier, making the tank impermeable. EVAL™’s gas barrier properties of HDPE are 4,400x stronger than HDPE making it the ideal choice when looking to reduce hydrocarbon emissions.

barrier vs monolayer
technology share 2015

 

EVAL™’s unique characteristics:

Typical applications

Typical structure (in / out)

- Automotive fuel tanks
- Small-engine gas tanks(lawn mowers, chainsaws, ATVs)
- jerry cans, marine tanks

HDPE/tie/EVAL™/tie/regrind/HDPE+ masterbatch



Processing methods:

Coextrusion blow moulding

Alternative method:

Thermoforming of multilayer sheet

Blow molding technology for automotive fuel tanks is the most commonly used fabrication method. However, automotive fuel tanks can also be thermoformed from multilayer sheet. One benefit to thermoforming automotive fuel tanks is that the tank can be molded with fuel lines and pumps on the inside, allowing for fewer connection points to the tank and simpler fabrication.