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Case Study: Fuel Tank Manufacturers use Patented DuPont Technology to Reduce Hydrocarbon Emissions up to 98%

Selar® RB is used to blowmold plastic fuel tanks with an integral laminar barrier.

Application Description

Plastic fuel tanks blow-molded with an integral laminar barrier. 

Materials Selected and Why

Selar® RB is used to reduce fuel permeation and is a potential solution to improving permeation performance of plastic containers. 

The patented “Laminar Barrier Technology” works by adding Selar® RB to the polyethylene in line at the blow-bolding machine.  With controlled mixing of the polyethylene and Selar® RB blend, the fuel tank is produced with many large discontinuous and overlapping barrier platelets within the polyethylene structure.

Selar® RB can reduce up to 98% of fuel permeation that normally occurs with PE.

Preliminary studies indicate Selar® RB to be one of the most cost-effective alternatives to achieve permeation resistance in portable fuel containers.

Benefits Gained

  • Permeation resistance
  • Cost reduction
  • Standard blow-molding equipment can be used
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