Cool Cover™ TPO Edge Sealant
TPO RESTORATION
DESCRIPTION
H.B. Fuller’s patented Cool Cover
™
TPO Edge Sealant* is a high
solids, low VOC, elastomer based white edge sealant designed to
seal the exposed edges of TPO membrane splices and laps. The
sealant has excellent adhesion to TPO membranes as well as
various other substrates including EPDM, metal, wood, and concrete.
The sealant can be used on TPO as well as EPDM roong systems.
Cool Cover
™
TPO Edge Sealant is suitable for use in VOC regulated
markets such as California and the O.T.C. States.
BASIC USE
Cool Cover
™
TPO Edge Sealant is designed to seal the exposed
edges of TPO membrane roof system splices, T-joints, step downs,
tie-ins, termination bars and general ashing details. Utilizing the
provided patented feathering tip, Cool Cover
™
TPO Edge Sealant can
be leveled as applied removing the need for post-application sealant
tooling. TPO Edge Sealant is an important nishing detail that
functions to protect seam edges from freeze-thaw interactions and
extends the life of an installed TPO waterproong system.
SURFACE PREPARATION
All work surfaces should be clean, dry, free of dirt, dust, debris,
oils, un-adhered coatings, deteriorated membrane and other
contaminants that may result in a surface that is not sound or is
uneven. If necessary, clean the surface to receive the Edge Sealant
with an approved EPDM membrane cleaner.
STORAGE
Store material in original unopened packaging at temperatures
between 40°F-110°F. (4°C-38°C). Shelf life is 24 months when
stored as recommended.
COLOR
White
FEATURES BENEFITS
LIMITATIONS
• Not to be used as a splicing cement between TPO or EPDM
membranes.
• Talc, dust, oil, ice, snow, or wet conditions inhibit good adhesion.
Clean and dry surfaces are necessary for proper installation of this
product.
SAFETY
Prior to working with this or any adhesive product consult product
label and Safety Data Sheet (SDS) for necessary health and safety
precautions.
PACKAGING AND COVERAGE
Millennium EPDM Edge Sealant is available in the following package:
Cartridge Size Part # Cartridges/Case
10.3 . oz. (300 mL) CT-6420 12
Coverage rate will be approximately 20 - 22 lineal feet (6.0 - 6.7 m)
CAUTION: All statements and technical information in this document are based on tests or data that H.B. Fuller believes is reliable. However, H.B. Fuller does not warrant
or guarantee the accuracy or completeness of this information. The user has sole knowledge and control of factors that can affect the performance of H.B. Fuller’s products in the
user’s intended application. It is the user’s responsibility to conduct tests to determine the compatibility of H.B. Fuller’s product with the design, structure, and materials of the user’s
end product and the suitability of H.B. Fuller’s product for the user’s method of application and intended use. The user assumes all risk and liability arising out of such use.
Low VOC formula
(<250 g/L)
Suitable for use in VOC regulated
markets
Excellent adhesion to
a variety of substrates
(EPDM, metals, wood,
and concrete)
Suitable for a wide variety of
applications
Resistant to UV
light, high heat, and
moisture
Long-term durability
High solids content
Resistant to shrinking and
cracking
No sag or flow
Suitable for both vertical and
horizontal application
APPLICATION
1. Prior to application insure that all seams and/or flashings are
properly installed according to TPO roof system manufacturer’s
guidelines. Cool Cover
™
TPO Edge Sealant is not intended to
repair a structurally unsound seam.
2. Cut nozzle tube for desired bead size. Place patented feathering
tip over cut nozzle prior to installing cartridge into caulking gun.
3. Gun ¼” (6.4mm) size bead of Cool Cover
™
TPO Edge Sealant
along the exposed edge of the membrane seam splice of flashing
detail. Note: for best results prime exposed edge receiving
sealant with Millennium Single-Ply Primer or Millennium Primer
240 prior to sealant application.
4. No tooling of installed sealant is necessary if feathering tip is
used. If feathering tip is not used, tool the sealant. Tool the
sealant bead so the high point is above the offset of the splice
and the edges are feathered onto the deck.
5. Taped membrane and flashing seams must be allowed to age
at least 2 hours before Cool Cover
™
TPO Edge Sealant is
installed. This insures any residual solvent from tape primer has
been removed. Refer to TPO roof system manufacturer’s
guidelines for additional recommendations. Sealant will remain
tacky up to 1 hour and will require up to 3-4 days to fully cure.
Join the Conversation | www.hbfuller.com/connect
For more information about our company, visit www.hbfuller.com/roofing.
TECHNICAL DATA
Typical Physical Properties and Characteristics
Typical Values Test Method
Color White Visual
Weight per gallon 11.60 lbs. ASTM D 1475
Tack free time Within 1 hour ASTM D 2377
Cure rate Approx. 72 hours ASTM D 2377
VOC content <250 g/L ASTM D 2369
Solids content 84% ASTM C 681
Flash point 50°F (10°C) ASTM D 56
Application Properties
Service temperature -40°F to 200°F
(-40°C to 93°C)
ASTM D 3359
Application
temperature
20°F to 120°F
(-6°C to 49°C)
ASTM C 603
NOTE:
The foregoing information is published as general information only.
The listed properties and performance characteristics are typical
values and are not to be interpreted as manufacturing specications.
Cements and Coatings
for roong systems
as to external re
exposure see UL
Directory of products
certied for Canada
and UL Roong
Materials and Systems
Directory.
87P0
WARRANTY: H.B. Fuller warrants its products to conform to H.B. Fuller’s specications at the time of sale when tested according to H.B. Fuller standards. If a
product is proven to be defective when tested according to H.B. Fuller standards, H.B. Fuller will, at its option, refund the purchase price or replace or repair the
defective product. THIS LIMITED WARRANTY IS THE BUYER’S SOLE AND EXCLUSIVE REMEDY AGAINST H.B. FULLER AND IS IN LIEU OF ANY AND ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. In no event shall H.B. Fuller be liable for any special, incidental, consequential, or punitive damages arising out of any claims whether based on
negligence, contract, warranty, strict liability or otherwise.
© H.B. Fuller Company, 2019. 0114 – 10822