home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Spec Disk 1998 Spring 4.0
/
Spec Disk 1998 Spring 4.0.iso
/
text
/
15819rcd.txt
< prev
next >
Wrap
Text File
|
1998-06-22
|
10KB
|
271 lines
SECTION 15819
AIR DUCT SEALANTS
NOTE ** This section is based on air duct sealants produced
by RCD Corporation, which is located at:
NOTE **
NOTE ** 2850 Dillard Road
NOTE ** Eustis, FL 32726
NOTE ** Tel: (352) 589-0099 or (800) 854-7494
NOTE ** Fax: (352) 589-0863
NOTE **
NOTE ** Products include air duct sealants for permanently
sealing fabricated joints and seams of HVAC air
ducts and thermal insulation.
NOTE **
NOTE ** SECTION 15819 - AIR DUCT SEALANTS, Copyright 1998,
The Architect's Catalog, Inc.
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Air duct sealants for permanently sealing fabricated
joints and seams of HVAC air ducts and thermal
insulation.
NOTE ** Delete paragraph below if not required.
B. Reinforcing membrane for sealants.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this
project; add others as required.
A. Section 15080 - Mechanical Insulation.
B. Section 15700 - Heating, Ventilating, and Air
Conditioning Equipment.
C. Section 15810 - Ducts.
D. Section 15820 - Duct Accessories.
1.3 REFERENCES
NOTE ** Delete references from the list below that are not
actually required by the text of the edited
section.
A. ASTM D 1668 - Glass Fabrics (Woven and Treated) for
Roofing and Waterproofing.
B. ASTM E 84 - Surface Burning Characteristics of Building
Materials.
C. ASTM E 96 - Water Vapor Transmission of Materials.
D. UL 181 - Factory Made Air Ducts and Air Connectors.
E. UL 181A - Closure Systems for Use with Rigid Air Ducts
and Air Connectors.
F. UL 181B - Closure Systems for Use with Flexible Air Ducts
and Air Connectors.
1.4 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Manufacturer's product data, including
physical properties and application instructions.
1.5 DELIVERY, STORAGE, AND HANDLING
A. Deliver materials to site in manufacturer's original,
unopened containers and packaging, with labels clearly
indicating manufacturer and material.
B. Storage:
1. Store materials in accordance with manufacturer's
instructions.
2. Storage Temperature: 40 to 100 degrees F (4 to 38
degrees C).
3. Protect from freezing.
1.6 ENVIRONMENTAL REQUIREMENTS
A. Do not apply below 35 degree F (2 degrees C) or above 120
degrees F (49 degrees C).
B. Avoid high humidity which will retard drying.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Acceptable Manufacturer: RCD Corporation; 2850 Dillard
Road; Eustis, FL 32726; ASD. Tel: (352) 589-0099 or (800)
854-7494; Fax: (352) 589-0863.
NOTE ** Delete one of the two following paragraphs;
coordinate with Division 1 requirements.
B. Requests for substitutions will be considered in
accordance with provisions of Section 01600.
C. Substitutions: Not permitted.
D. Supply all products specified in this section from a
single manufacturer.
2.2 AIR DUCT SEALANTS
NOTE ** Consult manufacturer to determine appropriate air
duct sealant for this project. Select from the
three paragraphs below.
A. Low to High Velocity Air Duct Sealant: RCD "#6 Mastic"
non-toxic, water-based, fiber-reinforced adhesive-
sealant; for permanently sealing fabricated joints and
seams of sheet metal air ducts, UL 181 listed rigid
fiberglass air ducts, UL 181 listed flexible air ducts,
and thermal insulation; for repairing damaged and leaking
air ducts; for sealing conditioned spaces from air
infiltration.
1. Type: Elastomeric terpolymer emulsion.
2. Applied Research Laboratories Listed: UL 181
3. Underwriters Laboratories Listed: UL 181A-M and UL
181B-M.
4. Solids by Weight: 67 percent, plus or minus 2
percent.
5. Weight per Gallon: 10.5 pounds, plus or minus 0.20
pounds (4.76 kg plus or minus 0.09 kg).
6. Wet Film Coverage: 100 linear feet per gallon at
1/16 inch by 3 inches wide (8.05 m/L at 1.58 x 75
mm).
7. Consistency: Thixotropic, non-sagging.
8. Adhesive Cure: 72 hours at 50 percent humidity and
70 degrees F (21 degrees C).
9. Service Temperature Limits: Minus 10 degrees to 200
degrees F (minus 23 to 93 degrees C).
10. Flame Spread: Not greater than 5 in accordance with
ASTM E 84.
11. Smoke Developed: Not greater than 0 in accordance
with ASTM E 84.
B. Low to High Velocity Air Duct Sealant: RCD "#8 Mastic"
non-toxic, water-based, adhesive-sealant; for permanently
sealing fabricated joints and seams of sheet metal air
ducts, UL 181 listed rigid fiberglass air ducts, UL 181
listed flexible air ducts, and thermal insulation; for
repairing damaged and leaking air ducts; for sealing
conditioned spaces from air infiltration.
1. Type: Elastomeric terpolymer emulsion.
2. Underwriters Laboratories Listed: UL 181A-M and UL
181B-M.
3. Solids by Weight: 74 percent, plus or minus 2
percent.
4. Weight per Gallon: 12.1 pounds, plus or minus 0.20
pounds (5.48 kg plus or minus 0.09 kg).
5. Wet Film Coverage: 100 linear feet per gallon at
1/16 inch by 3 inches wide (8.05 m/L at 1.58 x 75
mm).
6. Consistency: Thixotropic, non-sagging.
7. Adhesive Cure: 72 hours at 50 percent humidity and
70 degrees F (21 degrees C).
8. Service Temperature Limits: Minus 10 degrees to 200
degrees F (minus 23 to 93 degrees C).
9. Water Vapor Transmission: Not greater than 0.2173
perms per inch (8.555 perms/m) in accordance with
ASTM E 96.
10. Flame Spread: Not greater than 5 in accordance with
ASTM E 84.
11. Smoke Developed: Not greater than 0 in accordance
with ASTM E 84.
C. Low to High Velocity Air Duct Sealant: RCD "#9 Mastic"
non-toxic, water-based, fiber-reinforced adhesive-
sealant; for permanently sealing fabricated joints and
seams of sheet metal air ducts, UL 181 listed rigid
fiberglass air ducts, UL 181 listed flexible air ducts,
and thermal insulation; for repairing damaged and leaking
air ducts; for sealing conditioned spaces from air
infiltration.
1. Type: Elastomeric terpolymer emulsion.
2. Underwriters Laboratories Listed: UL-181A-M and UL-
181B-M.
3. Solids by Weight: 70 percent, plus or minus 2
percent.
4. Weight per Gallon: 12.0 pounds, plus or minus 0.20
pounds (5.44 kg plus or minus 0.09 kg).
5. Wet Film Coverage: 100 linear feet per gallon at
1/16 inch by 3 inches wide (8.05 m/L at 1.58 x 75
mm).
6. Consistency: Thixotropic, non-sagging.
7. Adhesive Cure: 72 hours at 50 percent humidity and
70 degrees F (21 degrees C).
8. Service Temperature Limits: Zero degrees to 200
degrees F (minus 18 to 93 degrees C).
9. Water Vapor Transmission: Not greater than 0.6812
perms per inch (26.819 perms/m) in accordance with
ASTM E 96.
10. Flame Spread: Not greater than 5.8 in accordance
with ASTM E 84.
11. Smoke Developed: Not greater than 14.3 in accordance
with ASTM E 84.
NOTE ** Delete paragraph below if not required.
D. Reinforcing Membrane: RCD "Glasscoat" inorganic woven
fiberglass reinforcing membrane; conforming to irregular
surfaces for sealing and coating thermal insulation, air
ducts, return air plenums, equipment, vessels, pipes, and
fittings.
1. ASTM D 1668, Type III.
2. Nominal Dry Weight: 1.2 to 2.0 ounces per square
yard (40.689 to 67.815 g/sq. m).
3. Saturated Weight: 1.6 to 2.6 ounces per square yard
(54.252 to 88.160 g/sq. m).
4. Nominal Thread Count: 10 by 20.
5. Breaking Strength, Saturated: 75 warp, 75 fill
minimum.
PART 3 EXECUTION
3.1 EXAMINATION
A. Examine surfaces to receive air duct sealants.
B. Notify Architect of conditions that would adversely
affect application of sealants. Do not proceed with
application until unsatisfactory conditions are
corrected.
3.2 SURFACE PREPARATION
A. Prepare surfaces in accordance with manufacturer's
instructions.
B. Remove water, dirt, oil, grease, and corrosion from
surfaces to receive air duct sealants.
3.3 APPLICATION
A. Apply air duct sealants in accordance with manufacturer's
instructions.
B. Apply to sheet metal air ducts, UL 181 listed rigid
fiberglass air ducts, UL 181 listed flexible air ducts,
thermal insulation, and other surfaces where indicated.
C. Do not thin or mix.
D. Apply tack coat at rate of 2 gallons per 100 square feet
(0.815 L/sq. m).
NOTE ** Delete paragraph below if reinforcing membrane is
not required.
E. Embed reinforcing membrane into tack coat.
F. Apply finish coat at rate of 2 gallons per 100 square
feet (0.815 L/sq. m).
G. Allow drying time as follows:
1. Minimum 6 hours when used outdoors if wet weather is
imminent.
2. Minimum 24 hours before using air duct system.
3. Additional time as required by air temperature and
humidity conditions.
END OF SECTION