Pemko 5025ASB Mortise Retainer...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$16.27
$13.40
Pemko 5025ASB Mortise Retainer Seal with 5/16" Soft Brush Insert

Pemko 5025ASB Mortise Retainer Seal with 5/16" Soft Brush Insert

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Model: 5025ASB 48
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$16.27
$13.40
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Pemko 5025ASB Mortise Retainer with 1/4" Soft Brush Insert
 
The 5025 Brush Gasket with mortise aluminum retainer and 5/16" brush is designed to provide optimal contact between the seal and the surface it is sealing against. It effectively seals gaps up to 1/4" and reduces the infiltration of light, air, wind, rain, and snow. With aluminum finish and two brush insert options, it can be custom-cut to size. This product is sold by the foot.
 
Features
  • Designed to seal uneven gaps between the door and the door jamb
  • Compressed nylon filaments are set in a 45° angle aluminum casing for the best contact with the floor surface
  • Available as a .375" nylon brush (NB), or a .375" soft brush (SB)
  • Brush remains flexible down to -40°F and has a melting point above 400°F
  • For hollow metal and wood door applications
  • Use on overhead, section, sliding, and automatic doors
  • Soft Brush ("SB") insert - item number P3 (available in gray and black)
Benefits
  • Brush seals reduce the infiltration of smoke, fumes, weather and light
  • Smooth gliding brushes automatically adjust to slightly uneven floors
  • UV stable, dependable, long-lasting and cost effective
  • Naturally repels rodents and spiders

Specifications

  • Base Material: Aluminum
  • Maximum Length: 96"
  • Minimum Length: 24"
  • Overall Height: 9/16"
 
  • Nylon filaments conform extremely well to irregular surfaces such as carpet, stone and grout lines
  • Provides excellent seal to keep out draft, dust, moisture, insects, fumes, light and sound
  • Flexible at high and low temperatures
  • Consists of densely compressed nylon filaments
  • Conforms to irregular surfaces, excellent for sealing almost any opening using a minimal closing force
  • Reduces the infiltration of light, air, wind, rain, and snow
  • Prevents heat loss and controls the penetration of smoke and fumes
  • Consists of densely compressed nylon filaments
  • Conforms to irregular surfaces, excellent for sealing almost any opening using a minimal closing force
  • Reduces the infiltration of light, air, wind, rain, and snow
  • Prevents heat loss and controls the penetration of smoke and fumes
  • Flexible at high and low temperatures
Certifications
  • GREENGUARD Gold Certified
  • UL 10C - Standard for Positive Pressure Fire Tests of Door Assemblies

 

RESOURCES & DOWNLOADS

Pemko 5025ASB Installation Instructions

Manufacturer Resources

Product Specs

Insert Type:
Brush
Warranty:
5 Year
Subcategory:
Gaskets & Weatherstripping
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Weatherstripping
Commercial/Residential:
Commercial
Lock Type:
Mortise
Product Model:
5025
Product Substrate:
Aluminum
Product Category:
Door Trim and Accessories

Pemko 5025ASB 48 – Frequently Asked Questions

1) What is the Pemko 5025ASB mortise retainer seal used for?
This seal provides weatherproofing and smoke control for commercial doors. The mortise design fits into door frames. The 5/16" soft brush insert blocks air infiltration and light gaps.
2) What door types work with this mortise retainer seal?
Compatible with most commercial hollow metal and wood doors. Verify door frame has adequate mortise depth for installation. Check door weight capacity before installation.
3) Does this seal work on left and right hand doors?
Yes, this retainer seal works on both left and right hand doors. The mortise design adapts to standard door frame configurations regardless of swing direction.
4) What finish is the 5025ASB available in?
The ASB designation indicates an anodized satin bronze finish. This provides corrosion resistance and matches common commercial hardware finishes.
5) What is the duty rating for this door seal?
Pemko seals are designed for commercial grade applications. Verify specific duty requirements with manufacturer specifications for your installation.
6) Does this seal meet fire and smoke code requirements?
Pemko seals are commonly used in code-compliant applications. Verify current fire and smoke ratings with local code officials for your specific project requirements.
7) Can I replace just the brush insert on this seal?
Yes, the 5/16" soft brush insert is replaceable. This extends seal life and maintains performance without full retainer replacement.
8) How do I install this mortise retainer seal?
Route mortise in door frame to manufacturer template dimensions. Insert retainer and secure with provided fasteners. Install brush insert into retainer channel. Verify proper door clearance.
9) How often should I inspect this door seal?
Inspect brush condition every 6 months in high-traffic applications. Replace brush insert when worn or compressed. Check retainer mounting periodically.
10) What other Pemko seals work with this retainer?
Other 5/16" brush inserts from Pemko's mortise seal line are compatible. Check Pemko seals for different brush densities and materials.
11) Will this seal work in exterior door applications?
The anodized aluminum construction handles most weather conditions. Verify exposure requirements for your climate. Consider additional weatherstripping for severe conditions.
12) What are the critical measurements for this seal?
Verify door frame mortise depth and width against manufacturer template. Measure door clearance to ensure proper brush contact. Check manufacturer specifications for exact dimensions.
How fast can I get the Pemko 5025ASB 48 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 5025ASB 48 come with a warranty?
Absolutely. The Pemko 5025ASB 48 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 5025ASB 48?
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 5025ASB 48 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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