[BS]2MMX45MMX25M W/ADH 1/CS Fire Door Strip

The [BS]2MMX45MMX25M W/ADH 1/CS is a flexible, highly intumescent firestop strip designed for use in fire rated door and door frame assemblies. It provides a positive pressure seal at door-to-frame clearances to prevent the passage of flames, smoke, and hot gases during a fire event. This product is suitable for use by electrical distributors and switchgear suppliers involved in fire safety and building code compliance applications, contributing to effective fire protection in commercial and industrial settings.

Specifications

• Manufacturer: RectorSeal
• Manufacturer Part #: 66211
• Product Weight: 7.0 lbs
• Color: Dark Gray
• Material: Highly intumescent firestop material
• Dimensions: 2mm thickness x 45mm width x 25m length (approximate, based on product code)
• Intumescence Activation Temperature: Begins expansion at 375°F (190°C)
• Degree of Intumescence: ≥18x with weight imposed, ≥37x free intumescing (DIN standard)
• Flame Spread Index: 5 (ASTM E84, UL 723 Tunnel Test)
• Smoke Index: 5 (ASTM E84, UL 723 Tunnel Test)
• Compliance: Meets UL 10C, NFPA 252, IBC 716.2, ASTM E814 / UL 1479, DIN 4102-1, British Standard B.S. 476
• Carcinogenic Fillers: None
• Solvents: None

Features

• Easy to install with factory-applied pressure sensitive adhesive
• Versatile and flexible for use in multiple fire door assembly configurations
• Multi-staged intumescent expansion for superior fire protection with reduced material usage
• Forms a strong char to seal door-to-frame clearances, preventing flame, smoke, and hot gas passage
• Can be installed on door frame or door leaf, either flush or in a channel
• Suitable for sealing hardware penetrations and fire-rated glazing in doors and sidelites
• Meets environmental exposure requirements including accelerated aging and high humidity
• Dark gray color for discreet installation

Downloads & Links

• Spec Sheet
• PDS - Spanish
• Safety Data Sheet
• SDS - Spanish
• Certified Clean Air Gold Certificate