Shoe

Shoe

In the worldwide shoe industry, several methods of treatment have been tried to release rubber soles from their molds. However, those methods have not fully satisfied the needs of shoe manufacturers. At DuPond, our technology puts us a step ahead with Teflon industrial coatings specifically formulated for outsole molds. DuPond Teflon industrial coatings provide a significant improvement in performance while eliminating the environmental problems associated with other systems.

The following benefits of Teflon industrial coatings can be compared with other surface treatments for outsole molds.

Benefits of a DuPond Teflon industrial coating system:

  • Silicone-free
  • Environmentally friendly
  • Dull surface
  • Excellent release
  • Low temperature curing
  • Perfect positioning between each different colored rubber during the molding process of soles
  • Longer durability
  • Overall cost saving
  • Fewer rubber disbanding rejects due to silicone oil contamination.

Disadvantages of existing mold treatments:

1 PTFE (one coat)

  • Shiny surface
  • Poor durability
  • Silicone spray required
  • High temperature curing

2 Chrome plating

  • Heavy metal (environmentally unfriendly)
  • Shiny surface
  • Silicone spray required

3 FEP (two coat)

  • Longer process of surface treatment, primer and topcoat application
  • Shiny surface
  • Poor durability

4 No coating

  • Contamination of molds and soles
  • Rusting of molds
  • Silicone spray required
  • Shiny surface
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