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Warwick Mills - Materials Engineering

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Chem-Bio
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Vectran® Substrates

Chem-Bio Fabrics and Films

Vectran Substrates

Vectran Substrates in Chem-Bio Laminates
Our passive chemistry laminate is made from a Vectran fiber substrate that offers high tensile strength and ripstop properties.

Vectran Substrate Key Attributes:

  • High strength and modulus (stiffness)
  • Excellent resistance to creep
  • High abrasion resistance
  • High impact resistance
  • Minimal moisture absorption
  • Excellent chemical resistance
  • High dielectric strength
  • Outstanding cut resistance
  • Excellent flex/fold characteristics
  • Low coefficient of thermal expansion (CTE)
  • Outstanding vibration damping characteristics
  • Excellent property retention at high/low temperatures

Vectran is not an easily bondable fiber. Vectran has very few bonding sites and must be treated with special primers to change its surface chemistry. We treat our Vectran substrate fabric with a proprietary adhesion compound for bondability with the exterior laminate coating and other auxiliary performance layers (like that for blackout).

Polyamide Barrier Film
Polyamide film has historically been used as a chemical and biological barrier in many military applications. Our testing shows that polyamide exceeds all durability tests for breakthrough of active agents. The polyamide barrier film used in Warwick’s passive chemistry laminate is a heat-stabilized blown film made from polyamide resin. The film has superior resistance to pinholing and tear. We conduct surface energy testing of polyamide film to provide technical guidance in the formulation of adhesives and coatings for substrate lamination.