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Products Foam

SOFTLON®, developed using Sekisui's unique irradiated cross-linking technology, is a highly foaming material in sheet form produced by polyethylene heat-foaming of 5 to 50 times more than its original size by electron beam irradiation. The major characteristic of this product is that it consists of nearly 100 percent closed-cell foam. It is lightweight and flexible, and offers excellent characteristics such as thermal insulation, impact resistance, thermal resistance, and flame resistance. Compared to other materials, it is easier to cut, punch and press mold, and can also be processed in other ways. It has a wide range of applications: automotive interior materials, construction underlayment materials, insulation and piping for air conditioning, materials for packaging or distribution, industrial insulation products, sports and leisure products, consumer goods, and medical care.


  • Smooth, flexible, with a beautiful surface
  • High flexibility for high impact-resistance
  • Closed cell foam: High water and thermal resistance; insulative performance does not vary over time
  • Lightweight, highly buoyant, and not affected by oils
  • Not affected by chemicals
  • Highly weather-resistant: Minimal degradation or color change
  • Wide range of processing possibilities for many applications such as molding

Product Lineup


Main applications: Interior materials such as cushioning material for head liners, trunk mats, and door trim.

Building and construction

Main applications: Insulation, moisture-proof or water-proof roofing materials, materials for gap adjustment, joint sealants for civil engineering and construction work, base materials, curing sheets, and antifreeze materials for the prevention of mud pumping on roads or rail roads.

Industrial thermal insulation

Main applications: Insulation materials for air conditioning or refrigeration equipment, anti-freezing materials for water pipes, heat insulation materials for pipes and bathtubs, moisture-proof materials for sinks, tape base materials, and gaskets.


Main applications: Gaskets, cushioning materials for packaging laminated wood, materials for packaging, cushioning and protection for electrical appliances, precision apparatuses, industrial components, furniture and containers, and corner pads.

Sports,leisure and consumer goods

Main applications: Sports equipment such as beat boards for swimming and gym mats, and consumer goods such as bath equipment, kitchen equipment, and baking materials for mats.

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