Zero International 7770A Jamb-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$248.43
Zero 7770A Jamb-Applied Adjustable Silicone Sealing System

Zero International 7770A Jamb-Applied Adjustable Silicone Sealing System with Fire-Rated Sound Control

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Model: 7770AA 60
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$248.43
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Zero International 7770A Jamb-Applied Adjustable Silicone Sealing System with Fire-Rated Sound Control

The Zero International 7770A is an adjustable, jamb and head applied sealing system engineered to deliver reliable perimeter sealing performance for commercial door openings. Featuring an extruded bulb/finger design for double-sealing protection, this system is ideal for sound control applications and is available in a clear anodized aluminum (AA) finish. Backed by fire-rated UL10c certification, smoke and draft control performance, and sound testing, the 7770A meets rigorous industry standards for reliability in demanding commercial environments.

Key Features

  • Adjustable Sealing System: Jamb and head applied design allows for precise fit and effective perimeter sealing at the door opening.
  • Double-Sealing Protection: Extruded bulb/finger construction provides enhanced sealing performance against air, sound, and drafts.
  • Clear Anodized Aluminum Finish: AA finish offers a durable, corrosion-resistant appearance suited to commercial door hardware applications.
  • Sound Control Design: Sound-tested construction makes this system well suited for sound control solutions in commercial buildings.
  • Smoke and Draft Control: Helps restrict the passage of smoke and drafts at the door perimeter for improved building performance.
  • Fire-Rated Performance: UL10c fire-rated certification supports use in openings where fire-rated perimeter sealing is required.

Certifications & Compliance

  • Fire-rated UL10c
  • Smoke and draft control
  • Sound tested

Technical Specifications

  • Commercial/Residential: Commercial
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Bottom Sweeps and Door Shoes
  • Product Type: Door Bottom
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Zero International 7770A?

Zero International perimeter seals are engineered to meet rigorous industry standards for reliability and performance, and the 7770A is no exception, combining fire-rated UL10c certification with sound-tested, smoke and draft control performance. The adjustable jamb and head applied design with double-sealing bulb/finger construction delivers dependable, professional-grade sealing performance for demanding commercial door openings.

Product Specs

Commercial/Residential:
Commercial
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Bottom Sweeps and Door Shoes
Product Type:
Door Bottom
Department:
Door Hardware

Zero International 7770AA 60 – Frequently Asked Questions

1) Where does the Zero 7770A seal mount, the door bottom or the frame?
The 7770A mounts to the frame, not the door. It is a jamb and head applied perimeter seal, so it runs up both jambs and across the head to seal the gap around the door. It does nothing for the gap under the door, so if you also need the bottom of the opening sealed you'll pair it with a separate door sweep or door shoe.
2) Is the Zero 7770A perimeter seal fire rated?
UL10c fire rated, and it also carries smoke and draft control performance, which is what an opening in a rated corridor or stair enclosure needs at the perimeter. It's a commercial-duty product.
3) What lengths does the Zero 7770A come in, and how many pieces do I need per opening?
Two lengths: 36 inches and 86 inches. A single door opening takes three pieces, one 86 inch run up each jamb and one 36 inch piece across the head. A pair of doors needs the same head and jamb coverage plus whatever the meeting stile arrangement calls for. Order by the piece, not by the opening.
4) Will the Zero 7770A take up a sloppy or inconsistent gap between the door and the frame?
That's what the adjustable design is for. The 7770A housing lets you set the seal position after mounting, so you can dial in contact where the door hangs tight and where it hangs loose along the same jamb. The sealing element is an extruded silicone bulb/finger profile that seals on two points rather than one, which is how it holds a seal across a gap that isn't perfectly uniform.
5) Is the Zero 7770A good enough for a sound rated door, like a conference room or exam room?
It's a sound tested seal, and the double-seal bulb/finger profile is the reason: two contact points on the perimeter cut more airborne sound path than a single bulb. Worth knowing that perimeter seal alone doesn't make an opening quiet. The undercut at the door bottom is usually the biggest leak in a conference or exam room, so you'll want an automatic door bottom or a sweep along with this.
6) Silicone or neoprene perimeter seal, which should I spec for a fire rated opening?
Silicone is the one to spec where heat and long service life matter, and the 7770A uses an extruded silicone sealing element under a UL10c fire rating. Silicone stays flexible over a much wider temperature range than a foam or vinyl insert and doesn't take a compression set the way cheaper materials do, so it keeps making contact years in. On a rated opening the rating is the deciding factor anyway, and a non-rated seal cannot go on a labeled door.
7) Can I retrofit the Zero 7770A onto existing frames, or does it only go on new work?
It surface applies to the jamb and head, so it goes on frames that are already hung and painted. That's the practical advantage over a kerf-mounted or mortised seal, which needs a slot cut in the frame stop and is effectively a new-door decision. For a property manager upgrading sound or smoke control across a floor of existing openings, a surface applied adjustable seal like this is the retrofit path.
8) What finish does the Zero 7770A come in, and will it hold up in a high traffic corridor?
Clear anodized aluminum, which is the standard mill-look finish that blends with aluminum frames and most hollow metal painted gray or silver. Anodizing is a corrosion resistant surface, so it wears well in a corridor or entry where the seal gets brushed constantly. Both the 36 inch and 86 inch lengths are clear anodized.
How fast can I get the Zero International 7770AA 60 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 Zero International 7770AA 60 come with a warranty?
Absolutely. The Zero International 7770AA 60 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 Zero International 7770AA 60?
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 Zero International 7770AA 60 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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