Pemko P50BL Kerf-In Weatherstr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$26.91
$25.46
Pemko P50BL 17' Thermoplastic Kerf-In Weatherstrip in Black Thermoplastic

Pemko P50BL Kerf-In Weatherstrip 17' Black Thermoplastic with Cold Weather Flexibility to -60�F

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Model: P50BL-17
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$26.91
$25.46
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Pemko P50BL Kerf-In Weatherstrip 17' Black Thermoplastic with Cold Weather Flexibility to -60�F

Professional Kerf-In Weatherstrip Solution

The Pemko P50BL Kerf-In Weatherstrip delivers reliable door sealing performance with a thermoplastic bulb design that maintains flexibility down to -60 degrees Fahrenheit. This 17-foot weatherstrip accommodates door gaps from 1/16"; minimum to 5/16"; maximum with a 3/8"; overall height profile. The thermoplastic elastomer formulation prevents transmigration for long-lasting sealing performance in commercial door applications.

Professional Features & Benefits

  • Flexible Gap Accommodation: Designed for door gaps ranging from 1/16"; minimum to 5/16"; maximum for versatile installation options.
  • Cold Weather Performance: Thermoplastic elastomer formulation remains flexible to -60 degrees Fahrenheit for reliable sealing in extreme conditions.
  • Professional Dimensions: 3/8"; overall height and profile height with lightweight 0.05 lbs construction for easy handling and installation.
  • Non-Transmigrating Design: Thermoplastic bulb construction will not transmigrate, ensuring consistent sealing performance over time.
  • Durable Thermoplastic Construction: Both base material and gasketing material utilize thermoplastic for consistent material properties throughout.
  • Frame-Side Mounting: Designed for mounting on the side of frame for effective door perimeter sealing.
  • Multiple Length Options: Available in 17ft or 25ft packaged coils, or 250ft bulk coils for various project requirements.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Dimension: W: 1/8, H: 5/16";
  • Product Function: Weatherstrip
  • Product Group: Door Trim and Accessories
  • Product Length: 17 FT
  • Product Material: Thermoplastic
  • Product Model: P50
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Type: Gaskets
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

  • Commercial Office Building Door Sealing
  • Educational Facility Weather Protection
  • Healthcare Institution Environmental Control
  • Retail Establishment Energy Efficiency
  • Industrial Facility Climate Control
  • Multi-Tenant Residential Weather Sealing
  • Government Building Perimeter Sealing

Why Choose Pemko Quality?

Pemko weatherstrip products deliver professional-grade sealing performance with thermoplastic construction engineered to remain flexible to -60 degrees Fahrenheit. The non-transmigrating thermoplastic elastomer formulation ensures consistent sealing effectiveness over the product lifecycle. Designed for demanding commercial applications where reliable weather sealing and energy efficiency are essential.

Product Specs

Subcategory:
Gaskets & Weatherstripping
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Model:
P50
Product Dimension:
W: 1/8, H: 5/16"
Product Material:
Thermoplastic
Product Function:
Weatherstrip
Product Length:
17'
Product Type:
Gaskets
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Pemko P50BL-17 – Frequently Asked Questions

1) Will Pemko P50BL kerf-in weatherstrip fit my door frame, or do I need a kerf cut first?
The P50 is a kerf-in seal, so the frame has to already have a kerf slot cut in it. The barbed base presses into that slot; there are no screws and no applied stop. If your hollow metal or wood frame has no kerf, this is the wrong seal and you want an applied surface-mounted gasket instead. On new work, specify the frame with a kerf and the P50BL pushes in during hanging.
2) What size door gap will the Pemko P50BL seal close?
It takes up gaps from 1/16 inch minimum to 5/16 inch maximum. That is the working range of the thermoplastic bulb: under 1/16 inch the bulb is crushed and the door will feel tight to close, over 5/16 inch it stops touching the door face and you lose the seal. Openings racked wider than that need a heavier bulb or an adjustable-stop seal.
3) Can I use this Pemko weatherstrip on a fire rated door?
The P50BL is a weather seal, not a smoke or fire gasket. It handles air, water and drafts at the perimeter of an exterior opening. Fire and smoke openings call for a labeled gasketing product carrying the specific listing your inspector needs, so match the seal to what the door label and the drawing require rather than substituting a weatherstrip.
4) Does the P50BL weatherstrip stay flexible in freezing weather?
The thermoplastic elastomer stays flexible down to -60 degrees Fahrenheit, so it keeps sealing on exterior openings, walk-in vestibules and unheated stair towers where a foam or vinyl bulb would stiffen and take a set. It also will not transmigrate, meaning the plasticizer does not bleed into the frame finish and leave a stain along the kerf.
5) What is the profile size of the Pemko P50 kerf seal?
The section measures W: 1/8, H: 5/16 inches, with a 3/8 inch overall height once the bulb is included. The 1/8 inch dimension is what has to match your frame kerf, so check the kerf width before ordering; the height is what sets how far the bulb stands off the stop.
6) Which side does Pemko P50BL mount on, the door or the frame?
Frame side. The seal goes into the kerf in the frame stop and the door closes against the bulb, so nothing is fastened to the door leaf and the door face stays clean. That also means the door itself needs no prep, which is why it works for retrofitting a fleet of openings where you do not want to pull doors.
7) Do I need screws or adhesive to install Pemko P50 kerf weatherstrip?
Nothing extra. The barbed thermoplastic base holds itself in the kerf, so the whole job is cutting the strip to length and pressing it in with your thumb, mitered or butted at the head corners. No fasteners, no adhesive, no drilling, and it pulls back out for replacement without leaving holes in the frame, which is why it suits turnover work in multi-family and hospitality.
8) Does the black P50BL come in any other color?
Black is the only seal material color offered on the P50BL. If the frames are painted a light color and you want the seal to disappear, you would be looking at a different color designation in the P50 family rather than a finish option on this one.
How fast can I get the Pemko P50BL-17 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pemko P50BL-17 come with a warranty?
Absolutely. The Pemko P50BL-17 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pemko P50BL-17?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pemko P50BL-17 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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