Description

Pemko 2891_PK Heavy Duty Perimeter Gasket-PemkoPrene

The Pemko 2891_PK Heavy Duty Perimeter Gasket is specifically designed for head frame applications where a parallel arm closer bracket or other hardware is required. This heavy-duty perimeter gasket provides structural support at the head while delivering reliable air, smoke, and sound sealing performance for commercial door assemblies.

Constructed with a durable aluminum retainer and a high-performance PemkoPrene® insert, the Pemko 2891_PK Heavy Duty Perimeter Gasket combines the flexibility of natural rubber with the processing advantages of thermoplastics. The insert offers excellent resistance to cleaning fluids and disinfectants while maintaining everyday resilience and low impedance to door operation.

Supplied undrilled in 36″ lengths or drilled in 80″ and longer lengths, it includes PHSMS #6 x 5/8″ sheet metal screws for secure mounting. When specified, it can also function as a door stop, with flat head machine screws available upon request for countersunk #10 holes. Pemko can drill the head member if drilling instructions are provided at the time of order.

Key Features

• Designed for head section applications with parallel arm closers or other hardware
• Heavy-duty aluminum retainer with PemkoPrene® insert
• Supplied undrilled (36″) or drilled (80″ and above)
• Includes PHSMS #6 x 5/8″ sheet metal screws
• Can function as a door stop when specified
• Excellent resistance to cleaning fluids and disinfectants
• Flexible, durable, and low impedance to door operation

Benefits

• Provides structural support at the head for parallel arm closer installations
• Helps reduce air leakage, smoke infiltration, and sound transmission
• Maintains flexibility and long-term sealing performance
• Suitable for general-purpose gasketing, weatherstripping, and glazing seal applications

Specifications

• Base Material: Aluminum
• Insert Material: PemkoPrene®
• Fasteners: PHSMS #6 x 5/8″
• Height: 1/4″
• Overall Height: 1/4″
• Profile Height: 1 1/2″
• Mounting Location: Side of Frame (Head Section)
• Mounting Type: Screw Applied
• Minimum Length: 2′
• Maximum Length: 185″
• Weight: 0.41 lbs.

Certifications & Compliance

• GREENGUARD Gold Certified
• UL 1784 – Air Leakage Tests of Door Assemblies
• UL 10C – Positive Pressure Fire Tests of Door Assemblies
• ASTM E-283-04 (2012)
• ASTM E 90-2009
• ANSI/BHMA A156.22 – Door Gasketing and Edge Seal Systems

The Pemko 2891_PK delivers strength, flexibility, and reliable sealing performance for head frame applications requiring hardware clearance and heavy-duty gasketing.

Finish Available

• 2891APK: A – Mill Finish Aluminum
• 2891BSPPK: BSP – Black Suede Powder Coat Aluminum
• 2891DPK: D – Dark Bronze Anodized Aluminum