421NDKB-120

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List Price

$704.00 / EA.

DKB-finish Heavy Duty Surface or Half Mortise, Sliding or Pocket Doors, Automatic Door Bottom with Neoprene Seal

Product Features

  • Aluminum Alloy 6063, T5 Temper
  • Synthetic EPDM Rubber in Polypropylene Thermoplastic Matrix Closed Cell Advanced Elastomeric Foam
  • Very Good Abrasion Resistance, Tensile Strength and Memory
  • Flame-Resistant
  • Moisture-Resistant
  • Temperature Range -81°F to 275°F
  • Good Resistance to Ozone, Sunlight and Aging
  • Designed for use on Sliding or Pocket Doors
  • A Series of Actuating Bars Keep the Seal Parallel to the Sill or Threshold Until the Door is in the Closed Position
  • Available 11" to 144" in Length"
  • End Caps Not Available
  • 7/8" Max Drop
  • Color is Black
  • Dark Bronze Finish

Standards

  • CERTIFIED by UL to CAN/ULC-S104 and ANSI/UL10B, complies with NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 90 minutes.

  • POSITIVE PRESSURE - CERTIFIED by UL to ANSI/UL10C, complies with IBC, NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 90 minutes.

  • AIR INFILTRATION TESTED to ASTM E283, Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors.

  • SMOKE & DRAFT CONTROL GASKETING. Certified by UL to ANSI/UL10C and ANSI/UL1784 Category ‘H’; complies with IBC and NFPA 105 for use on ‘S’ labeled Positive Pressure Hollow Metal fire doors rated up to 3 hours, and Wood fire doors rated up to 90 minutes.

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