COMFORT SEALTM
CP-181
DUCT CLOSURE
MASTIC
DUCT CLOSURE MASTIC & DUCT SEALANT
U.L. 181 A-M & U.L. 181 B-M
DESCRIPTION
COLOR
TM
CP-181 COMFORTSEAL is an easy to use water base duct closure
mastic. It can be used on fiberglass duct board systems, joining flex duct
to rigid connectors or on metal duct systems. It is safe to use, easy to
clean-up, and will not attack plastics or metals.
USES
To form an airtight seal on all U.L. 181 listed rigid fiberglass and/or
flexible HVAC air ducts. HVAC air ducts must be sealed properly in
order to function efficiently. CP-181 permanently seals air duct seams,
joints and terminations to eliminate inefficient and costly air leaks.
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Flexible
Mild odor
U.V. Resistant
Non-Flammable
Fire Resistant
Tenacious Adhesion
Single product for U.L. 181A and U.L. 181B
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10.8 lbs./U.S. gal.
1.3 kg/liter
AVERAGE NON-VOLATILE
63% to 67% by volume
APPLICATION & STORAGE TEMPERATURE RANGE
SERVICE TEMPERATURE RANGE
(Temperature to which dry adhesive is subjected)
0ºF to 265ºF
(-18ºC to 129ºC)
DRYING TIME
(Drying time will vary depending upon film thickness, temperature, and
humidity.)
24 hours before moving or pressurizing
CERTIFICATIONS
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•
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WET WEIGHT
40ºF to 100ºF (4ºC to 38ºC)
BENEFITS
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Cool Blue
U.L. 181 A-M; U.L. 181 B-M listed.
Meets NFPA 90A and 90B 25/50 requirements.
ASTM E-84, U.L. 723; NFPA 255 on composite basis, (insulation
facing, adhesive, mastic & skrim) does not exceed 25 flame spread,
50 smoke developed.
Meets requirements for LEED IEQ 4.1 Low-Emitting Materials,
Adhesives and Sealants. VOC: 32 g/l, less water and exempt
solvents.
Meets Florida State Energy Codes.
COVERAGE
2 U.S. gals./100 sq. ft. (0.8 l/.m2) depending upon surfaces being coated
and/or bonded.
CLEAN-UP
Warm soapy water
UL 181A-M
UL 181B-M
6P84
CP-181 contains no asbestos, lead, mercury, or mercury compounds.
08/09
Specialty Construction Brands, Inc.
an H.B. Fuller Company
Customer Service
800-231-9541
1105 South Frontenac Street
Aurora, IL 60504
Fax
800-942-6856
COMFORTSEALTM CP-181
Application Guide and Suggested Procedures
1.
Do not thin.
2.
Clean surfaces of all loose dirt, rust, and oil, per duct manufacturers recommendations.
3.
Never apply over wet/frosted surfaces or insulation. Do not apply in freezing conditions.
4.
Prior to use, keep CP-181 stored at a minimum of 50ºF for optimum results.
5.
Close all seams of U.L. 181 Rigid Fiberglass and/or Flexible Air Ducts per duct manufacturers recommendations. Brush
apply a uniform 3” wide tack coat of CP-181 centered about the seam at a coverage rate of 1 gal./100 sq. ft. (wet film
thickness=.016”).
6.
Reinforce the seam by embedding 3” wide 20 x 10, open weave, 5 mill thick fiberglass scrim (1.75 oz./sq. yd.) Pull taut and
smooth all wrinkles.
7.
Brush apply a uniform finish coat of CP-181 at a coverage rate of 1 gal./100 sq. ft. for a total application of 2 gal./100 sq. ft.
(.032” wet film).
8.
Allow finished CP-181 joints to dry a minimum of 24 hours at 70º F before moving or pressure testing the duct system.
NOTE: Since field temperature/humidity conditions may vary from controlled laboratory conditions, longer set times may be
required for specific installations.
9.
If duct system is to be painted, CP-181 must be completely dry before applying paint.
10. Scrape or wipe up spills, drips, or excess CP-181 immediately. Clean tools with hot soapy water.
11. Not recommended for spray or trowel applications.
CUSTOMER SERVICE: 800-231-9541
IMPORTANT: Specialty Construction Brands, Inc. warrants that each of its products will be manufactured in accordance with the specifications in effect on the date of
manufacture. WE MAKE NO OTHER WARRANTIES AND EXPRESSLY DISCLAIM ANY WARRANTIES OF MERCHANTIBILITY OR FITNESS FOR A PARTICULAR
PURPOSE. If a product fails to meet this limited warranty, purchaser’s sole and exclusive remedy is replacement of the product or, at our option, refund of the purchase
price. OUR ACCEPTANCE OF ANY ORDERS FOR THE PRODUCT IS EXPRESSLY CONDITIONAL UPON PURCHASER’S ASSENT TO THE TERMS ON THE
APPLICABLE INVOICE.
ADEQUATE TESTS: The information contained herein we believe is correct to the best of our knowledge and tests. The recommendations and suggestions herein are
made without guarantee or representation as to results. We recommend that adequate tests be performed by you to determine if this product meets all of your
requirements. The warranted shelf life of our products is six months from date of shipment to the original purchaser.
For professional use only. Keep out of reach of children.
Consult Material Safety Data Sheet and container label for further information.
DS CP-181 R0809