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 |
NGP (National Guard) |
|---|---|
| Finish |
Aluminum |
| Finishes |
Mill Finish Aluminum |
| Fire Rating |
Fire Rated – UL10C – Positive Pressure |
| Insert/Seal Type |
Neoprene or EPDM |
| Length |
48"36" |
NGP (National Guard) 422N Heavy-Duty Mortise Automatic Door Bottom