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NGP 178SA Overlapping Astragal with Silicone Seal, Anodized Aluminum
Product Features
- Aluminum alloy 6063, T5 temper
- Synthetic rubber polymer: Siloxane
- Excellent flexibility and memory
- Flame resistant
- Moisture resistant
- Temperature range -100°F to 500°F, remains flexible at extreme temperatures
- Excellent resistance to ozone, UV and aging
- Recommended for areas using FM200 or Halon Fire Suppression Systems
- BHMA Certified to ANSI/BHMA A156.22 performance tests for heat and cold
- Maximum height 120"
- #10 X 3/4" SMS furnished
- Silicone is black
Materials and Finishes
- Anodized Aluminum
Options
- FATT - Fast Attach Tape
Manufacturer Resources
Product Specs
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Astragals, Gaskets and Weatherstripping
- Product Type:
- Astragals
- Subcategory:
- Gaskets & Weatherstripping
- Commercial/Residential:
- Commercial
- Product Category:
- Door Trim and Accessories
NGP 178SA-84 – Frequently Asked Questions
1) What is the NGP 178SA overlapping astragal used for?
This astragal seals the gap between double doors where one door overlaps the other. The silicone seal provides weather protection and noise reduction for commercial and institutional applications.
2) Which door types are compatible with this astragal?
Compatible with wood, hollow metal, and aluminum double doors. Verify door thickness and edge profile before ordering. Check manufacturer specifications for weight limitations.
3) How do I determine proper handing for installation?
Handing is determined by which door receives the astragal. Order based on the active leaf that will have the astragal mounted. Consult door schedule for proper designation.
4) What finish options are available?
Available in anodized aluminum finish. This provides corrosion resistance and durability for exterior and high-traffic interior applications.
5) What is the load rating for this astragal?
Load ratings vary by door size and installation method. Verify door weight capacity with manufacturer specifications. Commercial grade construction suitable for high-frequency use.
6) Does this meet building code requirements?
Check local building codes for astragal requirements. Verify fire rating compatibility if used on fire-rated assemblies. Consult AHJ for specific compliance requirements.
7) What accessories are needed for installation?
Installation typically requires mounting screws and possibly mortising depending on door preparation. Check manufacturer template for specific hardware requirements.
8) How is this astragal installed?
Mounts to the door edge using manufacturer-provided template. May require mortising for flush installation. Follow torque specifications to avoid over-tightening fasteners.
9) How do I maintain the silicone seal?
Clean with mild soap and water. Inspect seal regularly for wear or damage. Replace if seal becomes hard, cracked, or loses compression. Avoid petroleum-based cleaners.
10) Are there related models available?
NGP offers various astragal configurations including surface-mounted and mortise options. Browse our door hardware section for compatible weatherstripping and sealing solutions.
11) What environmental conditions can this handle?
Anodized aluminum construction resists corrosion and UV exposure. Silicone seal maintains flexibility in temperature extremes. Suitable for exterior applications with proper installation.
12) How do I measure for proper fit?
Measure door height and gap width between doors when closed. Verify door edge thickness and profile. Use manufacturer sizing charts to select correct length and model.
How fast can I get the NGP 178SA-84 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 NGP 178SA-84 come with a warranty?
Absolutely. The NGP 178SA-84 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 NGP 178SA-84?
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 NGP 178SA-84 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.