Product Overview
National Guard Products (NGP) 422N Mill Aluminum Heavy Duty Mortise, Automatic Door Bottom with Neoprene Seal
- Aluminum alloy 6063, T5 temper
- Synthetic rubber polymer blend: PVC, Nitrile rubber (NBR), and Chloroprene closed cell advanced elastomeric foam
- Very good abrasion resistance, tensile strength and memory
- Flame resistant
- Moisture resistant
- Temperature range -20°F to 200°F
- Good resistance to ozone, sunlight and aging
- Use with a threshold for maximum sealing capability
- Nylon brush recommended for carpet applications where no threshold is provided
- Anodized aluminum end caps furnished standard. DKB end caps available – please specify
- Specify exact net length required to avoid field sizing
- 36″ and longer may be cut up to 4″ in the field. Under 36″ should not be cut in the field, order net length
- 36″ and longer are furnished 1/2″ shorter than ordered to fit within net door size. (i.e. 36″ is furnished 35-1/2″)
- Mortise required 1″ x 2-1/8″
- Up to 3 hrs. metal doors, 45 minute wood doors (does not fit mortise restrictions of some wood door manufacturers
- Available 11″ to 60″ in length
- #4 x 5/8″ SMS furnished
- 7/8″ max drop
- Neoprene is black
- Mill aluminum
| Brand | |
|---|---|
| Length | 36", 48" |
| Finishes | Mill Finish Aluminum |
| Fire Rating | Fire Rated – UL10C – Positive Pressure |
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NGP (National Guard) 422N Heavy-Duty Mortise Automatic Door Bottom