Dow Perimeter Sealing User Manual
I N S T A L L A T I O N I N F O R M A T I O N . C O M M E R C I A L . U N I T E D S T A T E S
Perimeter Seal/Parapet Repair Using
FROTH-PAK™200 Foam Sealant
FROTH-PAK™200 Foam Sealant
is a portable, two-component, spray
polyurethane foam dispensing system
for air sealing, insulation and moisture
management around the building
envelope. Reducing air leakage is
critical for enhancing building envelope
performance. Depending on the
construction details, often a source
of air leakage is around the perimeter
of the building between the roof deck
and parapet. Sealing this area during
construction can potentially reduce
costly repairs later, as well as improve
building performance.
G E T T I N G R E A D Y
MATERIALS AND EQUIPMENT
• FROTH-PAK™200 Foam Sealant Kit
complete with gun/hose assembly,
dispensing nozzles, petroleum jelly
packet and operating instructions
• Protective wear, including goggles
or safety glasses, gloves and
clothing, and respiratory protection
• Roofing knife or handsaw
• 10-12 mil polyethylene
• 5/8" to 3/4" plywood if repairing
(larger than area to be repaired)
• Paintbrush or roller
• Protective roof coating (similar or
compatible to originally applied
coating)
• Isocyanate is irritating to the eyes,
skin and respiratory system, and
may cause sensitization by inhalation or skin contact.
• FROTH-PAK
™
Foam will adhere to
most surfaces and skin. Do not get
foam on skin. Wear gloves, goggles
or safety glasses, and protective
clothing. Cured foam must be
mechanically removed or allowed to
wear off in time.
• The contents are under pressure.
• Store FROTH-PAK
™
200 Foam
Sealant at 75°F. Do not store at
temperatures above 120°F.
• Application temperature:
60°F - 90°F.
• Avoid prolonged storage in direct
sunlight or near heat sources.
PREPARE WORK AREA
1. Remove all contaminants (water, oil,
dust, dirt, debris, old sealants, etc.)
that could affect the adhesion
between the roof deck, parapet and
foam. If in doubt, conduct an adhesion test, waiting at least 1 hour to
assess the bond.
2. Check material compatibility.
FROTH-PAK
™
Foam Sealant is not
compatible with silicone coatings.
Remove any silicone coating at least
6" from the area to be sprayed.
insulations have surface burning characteristics of ≤75 flame spread index
and ≤450 smoke developed index. The
application of the product is limited to
an area of 8" wide x 2" thick.
Note: For gaps less than 1/2", use
GREAT STUFF PRO
™
Gaps & Cracks
Insulating Foam Sealant or equivalent.
Note: During application, the foam
exerts force as it expands. Monitor
the amount of foam installed to avoid
overfilling restricted spaces.
1. Apply foam 2" thick or less between
the roof deck and parapet (Figure 1).
2. Once the foam has cured (approxi-
mately 5 minutes), remove any
overspray with a roofing knife. If
additional shaping is required, cut
the cured foam with a handsaw.
S A F E T Y A N D
C O N D I T I O N S O F U S E
• Read the instructions and Material
Safety Data Sheets carefully before
use.
• FROTH-PAK
Foam contains isocyanate, hydrofluorocarbon blowing agent and
polyol. Do not breathe vapor or mist.
Use only in well-ventilated areas or
with proper respiratory protection.
Supplied air or an approved airpurifying respirator equipped with
an organic vapor sorbent and a
particle filter may be required to
maintain exposure levels below
ACGIH, OSHA, WEEL or other
applicable limits. For situations
where the atmospheric levels may
exceed the level for which an airpurifying respirator is effective, use
a positive-pressure, air-supplying
respirator (air line or self-contained
breathing apparatus).
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
™
Polyurethane Spray
building officials and codes for additional requirements prior to using
FROTH-PAK
3. Follow the operating instructions
APPLICATION: SEAL PERIMETER
(DURING CONSTRUCTION)
easily installed around the perimeter
on the exterior side of the roofing
assembly. Install the foam prior to
installing the membrane or insulation.
FROTH-PAK
requirements for use on the exterior of
a commercial roof per Section 2603 of
the International Building Code. The
code requires that foam plastic
Note: Always check with local
™
Foam Sealant.
included in the FROTH-PAK
™
Kit packaging. Contact your local
Dow representative or visit
www.dowbuildingsolutions.com for
more information.
FROTH-PAK™Foam Sealant can be
™
Foam Sealant meets the
Figure 1
APPLICATION: REPAIR PARAPET
1. If the area to be repaired has been
previously painted, scrape away all
loose or poorly adhered paint.
Conduct an adhesion test if any
previously painted surfaces are
involved in the repair.
2. If the area is wet, let the surface dry
completely. Any additional moisture
may cause premature curing and
limit work time of the FROTH-PAK
Foam Sealant.
3. Check the underlying substrate for
soundness and repair, if applicable.
™
I N S T A L L A T I O N I N F O R M A T I O N . C O M M E R C I A L . U N I T E D S T A T E S
4. Cut the damaged or blistered area at
an inward, tapered, 45° angle (Figure
2). Cut back any defective and moist
foam until solid, dry foam is exposed.
Where possible, remove at least 6"
beyond the area to be repaired.
Figure 2
5. Place a piece of plywood wrapped
in polyethylene next to the area to
be filled.
6. Depending on the depth of the repair
area, use two or more coats/passes
of FROTH-PAK
™
200 Foam Sealant
to obtain a thickness that is approximately 2" from the top of the area.
Apply the foam in layers of 2" or less
in any single pass (Figure 3).
7. To “form” the final pass, place the
plywood wrapped in polyethylene
over the area to be filled. Carefully
spray the foam under the plywood,
holding the plywood down (Figure 4).
Wait about a minute for the foam to
rise to the underside of the plywood
and begin curing. After removing the
plywood, check that the foam is
equal to the height of the surrounding
parapet.
Figure 4
8. Once the foam has cured (approximately 5 minutes), remove any
overspray with a roofing knife (Figure
5). If additional shaping is required,
cut the cured foam with a handsaw.
APPLY FINISH COATING (IF REQUIRED)
Note: Always protect FROTH-PAK
™
Foam Sealant within 3 hours after
application with a protective coating.
Brush or roll a 30-40 mil quality
protective coating (similar to the
originally applied coating).
DISPOSAL
1. Dispose of any foam waste and
empty FROTH-PAK
™
Foam Sealant
cylinders as a non-hazardous waste
(outlined in the operating instructions)
and in accordance with local and
state regulations.
2. Depressurize cylinders prior to
disposal.
Figure 3
www.dowbuildingsolutions.com
NOTICE: No freedom from any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible
for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other
government enactments. Dow assumes no obligation or liability for the information in this document. NO EXPRESS WARRANTIES ARE GIVEN EXCEPT FOR ANY APPLICABLE WRITTEN WARRANTIES SPECIFICALLY
PROVIDED BY DOW. ALL IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.
COMBUSTIBLE: FROTH-PAK™ Foam Sealant is combustible and may constitute a fire hazard. Do not expose foam to flame or temperatures above 240°F. For more information, consult MSDS, call Dow at 1-866-583-BLUE (2583)
or contact your local building inspector. In an emergency, call 1-989-636-4400.
FROTH-PAK™ Polyurethane Spray Foam contains isocyanate, hydrofluorocarbon blowing agent and polyol. Read the instructions and Material Safety Data Sheets carefully before use. Wear protective clothing, gloves,
goggles or safety glasses, and proper respiratory protection. Supplied air or an approved air-purifying respirator equipped with an organic vapor sorbent and a particle filter may be required to maintain exposure levels below
ACGIH, OSHA, WEEL or other applicable limits. Provide adequate ventilation. Contents are under pressure.
GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant contains isocyanate and a flammable blowing agent. Read the label and Material Safety Data Sheet carefully before use. Eliminate all sources of ignition before
use. Wear gloves, and goggles or safety glasses. Provide adequate ventilation or wear proper respiratory protection. Contents under pressure.
Building and/or construction practices unrelated to building materials could greatly affect moisture and the potential for mold formation. No material supplier including Dow can give assurance that mold will not develop in
any specific system.
Figure 5
Technical Information
1-866-583-BLUE (2583)
Sales Information
1-800-232-2436
IN THE U.S.
THE DOW CHEMICAL COMPANY
200 Larkin
Midland, MI 48674
Printed in U.S.A.
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
Form No. 179-05326X-0510P&M
McKAY204695
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