NGP Mill Aluminum Mortise Automatic Door Bottom with 3/4" Drop
Professional Automatic Door Sealing Solution
The NGP Mill Aluminum Mortise Automatic Door Bottom provides reliable sealing for commercial door applications with a mortise installation design. Constructed from aluminum alloy 6063 T5 temper with synthetic rubber polymer blend sealing material, this automatic door bottom features a 3/4" maximum drop and requires a 5/8" x 1-9/16" mortise. Available in lengths from 23-1/4" net to 48" with standard end caps, it operates effectively in temperatures from -20 F to 200 F.
Professional Features & Benefits
- Precision Mortise Installation: Requires 5/8" x 1-9/16" mortise for flush mounting in wood fire doors and standard commercial applications.
- Optimal Drop Performance: 3/4" maximum drop provides effective sealing against air, sound, and moisture infiltration.
- Heavy-Duty Construction: Aluminum alloy 6063 T5 temper housing with synthetic rubber polymer blend combining PVC, Nitrile rubber (NBR), and Chloroprene closed cell elastomeric foam.
- Wide Temperature Range: Operates reliably from -20 F to 200 F with flame resistant and moisture resistant properties.
- Flexible Length Options: Available from 23-1/4" net to 48" in length with field cutting capability for 36" and longer units (up to 4" reduction).
- Fire Door Compatible: Meets wood fire door mortise restrictions for code-compliant installations.
- Enhanced Durability: Excellent abrasion resistance, tensile strength, and memory with good resistance to ozone, sunlight, and aging.
- Lead-Lined Option: 1/16" thick lead insert available for enhanced sound attenuation when specified as "Lead-Lined".
Technical Specifications
- Commercial/Residential: Commercial
- Department: Door Hardware
- Product Category: Door Trim and Accessories
- Product Group: Door Trim and Accessories
- Product Subgroup: Door Bottom Sweeps and Door Shoes
- Product Type: Automatic Door Bottoms
- Subcategory: Gaskets & Weatherstripping
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Fire-Rated Door Assemblies
- Sound Control Applications
- Energy Efficient Building Envelopes
- Multi-Tenant Residential Properties
Why Choose NGP Quality?
NGP automatic door bottoms deliver professional-grade sealing performance with aluminum alloy 6063 T5 temper construction and advanced elastomeric foam technology. The synthetic rubber polymer blend provides exceptional durability with excellent abrasion resistance and temperature stability from -20 F to 200 F. Engineered for demanding commercial applications where reliable environmental sealing and fire door compatibility are essential.
Manufacturer Resources
Product Specs
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Door Bottom Sweeps and Door Shoes
- Product Type:
- Automatic Door Bottoms
- Subcategory:
- Gaskets & Weatherstripping
- Commercial/Residential:
- Commercial
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware