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 About
Our Product
 For energy
conservation or non-chemical pest control, nothing seals as completely or
as permanently as Almost Airtight Nylon Brush Seals!
Almost Airtight’s Nylon Brush Seal easily conforms to the most irregular surface, filling pits and gaps, yet does not inhibit the door's function. No vinyl, rubber or neoprene weatherstripping can match this thoroughness or resistance to wear.
The
Almost Airtight Brush Seal is a nylon bristled brush, permanently locked into a galvanized steel backing, which in turn is inserted into a rigid aluminum channel of varying design. This entire assembly is then mounted to cover a gap providing an almost airtight seal (98%).
Why Nylon Bristles?
The finer diameter nylon bristles used in Almost Airtight’s Brush Seal (thousands per foot) are nestled tightly together to impede the passage of hot or cold air, light,
dirt, sand, dust, insects, and small rodents. The unsurpassed flexibility, recovery, and abrasive resistance properties of Almost Airtight’s Brush Seal produce a weather seal that can flex back and forth easily and yet will always return to the original sealed
position.
Guaranteed for the life of your door*, the Almost Airtight nylon Brush Seal is far superior to any other weather stripping on the
market and complies with UL 10B requirements. It can cover a gap from 1/8” up to 6”, providing an almost airtight seal (98%-99%) that will control or eliminate energy loss (heating and cooling) and keep out light, dirt, dust, sand, insects, and small rodents.
Almost Airtight Brush Seals are virtually indestructible with a broad range of applications.
Almost Airtight can't be pulled out, nor will it wear out. It returns to its original shape and is able to resist temperatures from 100 degrees below zero to 350 degrees above zero. It is non-toxic and resists most solvents.
Test Data
Single Acting Door:
Air infiltration tests were conducted in accordance with ANSI SPEC.ASTME 283-73 for weather stripping, using an incline manometer connected to a static pressure tap in a sealed plenum chamber. Tests were conducted at pressures equivalent to wind velocities of 15,25 and 35 M.P H. The Brush Seals were then removed and identical tests conducted without them.
|
Air
Infiltration Recorded Per Linear Foot |
| Wind
Velocity |
Without
Brush Seals |
With
Brush Seals |
Efficiency
of Seals |
| 15
MPH |
6.52
CU FT/MIN |
0.06
CU FT/MIN |
99% |
| 25
MPH |
11.01
CU FT/MIN |
0.19
CU FT/MIN |
98% |
| 35
MPH |
15.00
CU FT/MIN |
0.25
CU FT/MIN |
98% |
*Properly installed, our brush seals will outlast the door(s) originally installed on.
6746 Dandison Blvd. Orchard Lake, Ml 48324
Phone: 800-482-4587 • Fax: 248-360-4912
Email: sales@almostairtight.com
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Almost Airtight Nylon Brush Door Seals 
