Product Description: AP Armaflex and AP Armaflex FS are mold-resistant, fiber-free duct liners and wraps with or without an advanced, pressure-sensitive adhesive system. These duct liners and wraps are ideal for air handling systems, VAV units, ducts and other air system components requiring condensation control, resistance to moisture, damage or heat gain; or HVAC noise blocking or sound dampening.
AP Armaflex SA and AP Armaflex FS SA Duct Liners / Wraps are black, flexible elastomeric thermal insulation. It is made with Microban® antimicrobial product protection, EPA registered for use in air ducts (EPA Reg. No. 1258-840-42182).
AP Armaflex SA and AP Armaflex FS SA Duct Liners / Wraps are GREENGUARD Children and Schools Indoor Air Quality Certified®, are plenum rated and meet NFPA standards for institutional air ducts.
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Specifications |
AP Armaflex |
AP Armaflex FS |
Test Method |
Thermal Conductivity,
Btu • in./h • ft2 • °F
75°F mean temperature
90°F mean temperature | 0.25
0.256 | 0.28
0.256 | ASTM C 177 or C 518 |
| Water Vapor Permeability | 0.05 Perm-inch | 0.08 Perm-inch | ASTM 96, Procedure A |
| Flame Spread and Smoke Developed Index ➀ Through 1” | Through 1”
25/50 | 1-1/2” and 2”
25/50 | ASTM E 84, CAN/ULC S102 |
| Water Absorption | 0.2% by volume | ASTM C 209 |
| Upper Use Limit ➁ | 180˚F | |
| Lower Use Limit ➂ | -297˚F | |
Mold Growth
Fungi Resistance
Bacterial Resistance | Meets requirements | UL181
ASTM G21/C1338
ASTM G22 |
| Erosion Resistance | Does not break away, flake off or show evidence or delamination at velocities of 10,000 ft/min | ASTM C 1071 |
| Corrosiveness | Noncorrosive | ASTM C 665 |
| Odor Emissions | No objectionable odors | ASTM C 665 |
➀ Numerical flammability ratings alone may not define the performance of products under actual fire conditions.
➁ Withstands temperature of 250°F when tested according to ASTM C 411. Although this insulation will withstand high temperatures, continuous use temperature should be limited to 180°F.
➂ At temperatures below -20°F elastomeric insulation starts to become less flexible.