Cal-Royal C-0773 Silicone Adhe...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$41.30
Cal-Royal Cal-Royal C-0773 Silicone Adhesive Weatherstrips CAL-C-0773

Cal-Royal C-0773 Silicone Adhesive Weatherstrip with Tri-Fin Light and Sound Seal

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Model: C-0773B-17
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$41.30
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Cal-Royal C-0773 Silicone Adhesive Weatherstrip with Tri-Fin Light and Sound Seal

The Cal-Royal C-0773 is a silicone rubber adhesive weatherstrip featuring a tri-fin design engineered to block light and sound around door openings. This seal begins compressing at 3/8" and compresses to seal gaps of up to 1/16", delivering an energy-efficient barrier against air, light, smoke, and insects. Constructed from silicone rubber with 3M adhesive tape backing, it is suited for use on wood or hollow metal frames and performs reliably across a wide temperature range of -58°F to 450°F.

Key Features

  • Gap Compression Range: Seal begins compressing at 3/8" and compresses to seal gaps up to 1/16" for a tight, energy-efficient fit.
  • Tri-Fin Design: Specifically engineered to block light and sound transmission around the door opening.
  • Wide Temperature Performance: Silicone rubber construction remains effective between -58°F and 450°F, suitable for demanding climates.
  • High-Quality Self Adhesive: Backed with 3M Adhesive Tape offering strong initial adhesion and long-term holding power for reliable, simple installation.
  • Durable, Resistant Construction: Non-toxic and self-extinguishing; resistant to sunlight, ozone, oxidation, weather, water, and flames.
  • Mildew and Fungus Resistant: Impermeable to mildew and fungus and will not degenerate under normal exposure conditions.
  • Frame Compatibility: Designed for use on wood or hollow metal door frames, offering a simple and cost-effective way to create a seal around the door frame.

Technical Specifications

  • Product Group: Door Trim and Accessories
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Type: Weatherstripping
  • Subcategory: Gaskets & Weatherstripping
  • Commercial/Residential: Commercial
  • Product Category: Door Trim and Accessories
  • 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 Cal-Royal C-0773?

Cal-Royal weatherstripping products are engineered and tested for durability and reliable performance to meet or exceed industry standards. The C-0773's silicone rubber construction with 3M adhesive backing delivers strong, long-term holding power along with resistance to sunlight, ozone, oxidation, weather, water, flames, mildew, and fungus. Engineered for commercial door applications where a dependable, energy-efficient seal against light, sound, air, smoke, and insects is essential.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Weatherstripping
Subcategory:
Gaskets & Weatherstripping
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Cal-Royal C-0773B-17 – Frequently Asked Questions

1) What size gap will the Cal-Royal C-0773 weatherstrip actually seal?
The C-0773 tri-fin silicone seal starts compressing at a 3/8 inch gap and keeps sealing down to 1/16 inch. So if the space between your door and frame falls anywhere in that 3/8 to 1/16 inch window, the fins stay in contact and you get a continuous barrier against air, light, smoke, and insects. A gap wider than 3/8 inch will leave the fins untouched, and you'd want a heavier jamb seal with an adjustable stop instead.
2) Can I stick this weatherstrip onto a hollow metal door frame, or is it only for wood?
Both work. The C-0773 is made for wood and hollow metal frames, and it mounts with 3M adhesive tape backing rather than screws or a kerf groove, so there's no routing or drilling. Clean and dry the stop face first so the tape grabs, since adhesive-applied seals live or die on surface prep.
3) How does this compare to a kerf-in weatherstrip like the Pemko Q103W?
Different installation entirely. The Cal-Royal C-0773 is a self-adhesive silicone strip that presses onto the face of the stop, so it goes on an existing frame with no machining. The Pemko Q103W is a kerf-in foam weatherstrip with an extended flange, which requires a kerf groove already cut in the frame. If your frames are kerfed, the Pemko drops in and stays put mechanically. If they aren't, the adhesive C-0773 is the retrofit answer.
4) Is the Cal-Royal C-0773 an approved smoke seal for a fire-rated door?
Treat the C-0773 as a light, sound, air, and insect seal. The silicone is non-toxic and self-extinguishing and resists flame, but for an opening where the inspector wants a labeled smoke or fire assembly, buy a product sold for that duty: the Hager 726S is a smoke seal weatherstrip with press-on installation, and the Pemko 68 is a fire-rated door top weatherstrip with a black sponge neoprene insert.
5) I manage a building with a lot of doors. How much C-0773 do I need per opening and can I match what's already installed?
For a standard single opening you're sealing the head plus two jambs, so the 204 inch piece covers one door with trim allowance and the 510 inch length lets you do a run of openings from one roll. Stick with one color across the building: black for dark frames or anodized aluminum, white for painted light frames. Both colors are available in all five lengths, so you can standardize the finish and still order short pieces for patch repairs.
6) Will this seal hold up on an exterior door in freezing or very hot conditions?
Silicone rubber is what makes the difference here. The C-0773 performs from -58F to 450F, which is a far wider band than a foam or neoprene seal, and it resists sunlight, ozone, oxidation, weather, and water. That temperature range also means it won't go brittle in a cold climate or take a permanent set next to a sun-loaded south elevation.
7) I'm trying to cut down noise coming through an office door. Is a tri-fin seal the right choice?
That's exactly what the tri-fin profile on the C-0773 is for. Three fins instead of a single bulb give you multiple points of contact around the opening, which is what blocks light and sound transmission rather than just air. For a quieter office or conference room, pair it around the head and jambs; the fins won't do anything about the gap under the door, so you'd still need a separate bottom sweep or automatic door bottom there.
8) What should I use instead of the Cal-Royal C-0773 if I want an aluminum housing with a replaceable insert?
The C-0773 is an all-silicone adhesive strip with a tri-fin profile and no metal carrier, so when the fin wears you replace the whole strip. For a housed gasket, the Hager 864S is an 84 inch clear anodized aluminum adjustable jamb weatherstrip with a neoprene insert, and the Hager 862S is a 48 inch weatherstrip with a neoprene insert for smoke and draft control. Both mount mechanically to the frame rather than with tape.
9) Is the Hager 726S a direct substitute for the Cal-Royal C-0773?
They install the same way but do different jobs. The Hager 726S is a press-on smoke seal weatherstrip in a charcoal finish, aimed at smoke control. The Cal-Royal C-0773 is a silicone tri-fin strip specifically engineered to block light and sound as well as air, smoke, and insects, and it holds up from -58 degrees F to 450 degrees F. If the opening is being sealed for light or sound transmission, the tri-fin profile is the closer match.
10) I need to seal a single door head and jambs in one run. Does the Cal-Royal C-0773 come long enough, or do I need a different product?
The C-0773 is sold in lengths of 17, 20, 25, 204, and 510 inches in black or white, so a 204 inch piece covers a head and both jambs with a single cut run. By comparison, the Hager 862S comes as a 48 inch piece, the Hager 864S as an 84 inch jamb length, and the Pemko 68 as a 40 inch door top piece, which are cut to individual head or jamb segments.
11) Which weatherstrip holds up better on a door exposed to high heat, the Cal-Royal C-0773 or a neoprene insert type?
The C-0773 is silicone rubber rated to perform between -58 degrees F and 450 degrees F and is resistant to sunlight, ozone, oxidation, weather, and water. The Hager 862S and Pemko 68 use neoprene inserts, a different elastomer, and the Pemko Q103W uses foam. For mechanical rooms, boiler rooms, or exterior south-facing openings, the silicone material is the one with the stated temperature range.
12) I want a white weatherstrip to match painted frames. Do the comparable products offer that?
The C-0773 is offered in both black and white across its 17, 20, 25, 204, and 510 inch lengths, so white painted frames can be matched without painting the gasket. The Hager 726S is supplied in a charcoal finish and the Hager 864S in clear anodized aluminum, which are the finishes those carry.
13) Will this weatherstrip hold up in a humid basement or a healthcare corridor without growing mildew?
Silicone doesn't feed mold. The C-0773 is impermeable to mildew and fungus and won't degenerate under normal exposure, which is why it gets specified in healthcare institutions, educational facilities, and multi-tenant residential where seals get cleaned often and sit in damp air. It's rated for commercial use rather than being a residential-grade foam tape.
14) Do I need a separate product for the door top, or will the Cal-Royal C-0773 work there?
The C-0773 applies to wood or hollow metal frames with its 3M adhesive backing and can run the head as well as the jambs. The Pemko 68 is a dedicated door top weatherstrip supplied in a 40 inch length with a black sponge neoprene insert, which is the option to specify when the head seal is called out separately from the jamb seal on the schedule.
How fast can I get the Cal-Royal C-0773B-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 Cal-Royal C-0773B-17 come with a warranty?
Absolutely. The Cal-Royal C-0773B-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 Cal-Royal C-0773B-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
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