• MSDS
• Submittal
• Data Sheet

We Didn’t Choose Brown, It Just Came Naturally. 

Knauf Friendly Feel^® Duct Wrap with ECOSE^® Technology sets a new industry benchmark for sustainable, high-performance, cost-effective insulation solutions.

To create the next generation of sustainable insulation, we combined:

• • Sand, one of the world’s most abundant and renewable resources,
• • Minimum 35% post-consumer recycled bottle glass and
• • ECOSE Technology

Revolutionary New ECOSE Technology

The natural brown color comes from ECOSE Technology, a revolutionary, more sustainable binder.

• Patented technology born from five years of intensive research and development.
• Based on rapidly renewable bio-based materials rather than non-renewable petroleum-based chemicals commonly used in our traditional fiber glass insulation products.
• Does not contain phenol, formaldehyde, acrylics or artificial colors.
• Reduces binder embodied energy by up to 70%, and global warming Potential (GWP) and total insulation
• embodied energy by an anticipated 4% to reduce our carbon footprint.
• Converts natural, rapidly renewable organic materials into a totally inert polymer for superior environmental sustainability.

Your Best Choice

Knauf  Duct Wrap with ECOSE® Technology delivers:

Improved sustainability:

• Uses renewable and abundant resources.
• Contains an industry-leading percentage of post-consumer recycled glass.
• Replaces non-renewable resources with renewable ones.
• Based on rapidly renewable bio-based materials.
• Eliminates non-renewable petroleum-based chemicals, such as phenol and formaldehyde.
• Reduces binder embodied energy.
• Contains no artificial colors.

Unsurpassed performance:

• Cost-effective way to improve thermal and acoustical performance.
• Is interior-friendly—GREENGUARD certified for Children & Schools.
• Helps projects achieve LEED Green Building Certification.

Great Handling Characteristics

• New Friendly Feel Duct Wrap with ECOSE Technology boasts exceptional quality and handling characteristics that keep installers happy and more productive—great feel, low dust, quick recovery.
• Flexible, lightweight—conforms easily to flat or irregular surfaces.
• Tough and resilient—resists damage in shipment and during and after installation.
• Easier, faster measurement of stretch-out lengths with KwikStretch® Markings on the FSK and PSK staple flanges.
• Rolls allow for faster installation, lower labor costs.

Great Performance Benefits

New Friendly Feel® Duct Wrap with ECOSE Technology meets all the specifications and performance requirements for your projects.

Excellent Acoustical Barrier

• Reduces sound transmission through the duct wall of noise generated by air turbulence and mechanical equipment for quiet, efficient air delivery

Conserves Energy

• Low “k” factor significantly reduces heat gain or loss.
• Lowers operating costs—increases system efficiency and reduces energy usage.

Controls Condensation

• FSK or PSK facings assure condensation control with proper installation and sealed joints, seams and penetrations.

Great Appearance

• White and Black PSK facings are a desirable solution for exposed duct work because of their appearance and resiliency.

Applications:

• Knauf  Friendly Feel® Duct Wrap with ECOSE Technology is a thermal and acoustical insulation blanket bonded with ECOSE Technology for use as an external insulation on commercial or residential heating or air conditioning ducts.
• Suitable for the exterior of rectangular or round sheet metal ducts and spaces and surfaces where temperature and condensation must be controlled.
• Ideal for cooling, heating or dual temperature service

Technical Data

Surface Burning Characteristics

• UL/ULC Classified (FSK). Unfaced or composite (insulation, facing and adhesive) does not exceed 25 Flame Spread,50 Smoke Developed when tested in accordance with ASTM E 84 (PSK only), CAN/ULC S102-M88, NFPA 255 and UL 723.

Temperature Range (ASTM C 411)

• Faced—up to 250˚F (1221˚C); Unfaced—up to 350˚F (177˚C).

Water Vapor Sorption (ASTM C 1104)

• Less than 5% by weight when tested for 96 hours at 120˚F (49˚C) and 95% relative humidity.

Water Vapor Permeance (ASTM E 96, Procedure A)

• FSK and white PSK facings—maximum .02 perms.
• Black PSK facing—maximum .09 perms.

Corrosiveness (ASTM C 665)

• Does not accelerate corrosion on steel, copper or aluminum.

Corrosion (ASTM C 1617)

• The corrosion rate in mils/yr will not exceed that of 1 ppm chloride solution.

Resistance to Microbial Growth (ASTM C 1338)

• No growth.

Puncture Resistance (TAPPI Test T803) (Beach Units)

• FSK  and PSK: 25

Specification Compliance

In U.S.:

• ASTM C 1139-unfaced, Type I, II
• Grade 1- 0.75 lb/ft³
• Grade 2- 1.0 lb/ft³
• Grade 3- 1.5 lb/ft³
• ASTM C 553; Type I, II, III
• ASTM C 1136; Type II
• ASTM C 1290
• GREENGUARD Indoor Air Quality Certified
• GREENGUARD for Children and Schools Certified
• California Title 24 (installed at 25% compression)
• HH-I-558C; Form B, Type I, Class 7
• NFPA 90A and 90B

• CAN/ULC S102-M88
• CAN/CGSB 51.5M; Type II (FSK facing)
• CAN/CGSB 51.11-92

Insertion Loss

Sound and vibration design and analysis, National Environmental Balancing Bureau, 1994

R-Values (ASTM C 518) @ 75°F Mean Temperture

Thermal Efficiency (ASTM C 177)

Forms Available 

Stretch-Out

P=Duct Perimeter