Technical Specifications

Basic Uses:
• Gutters, flashings, penetrations,
vents, roof jacks, chimney caps
& more
• Most non-traffic-bearing joints,
including those where structural
movement or stress is expected
Composition and Materials:
Ultima Roof Sealant is based on a
proprietary formulation of polymers
designed to provide optimum
flexibility, adhesion, and weather
resistance. Because of the inherent
flexibility of this material blend, the
1. PRODUCT NAME:
Ultima
®
Roof Sealant
2. MANUFACTURER:
Geocel Products Group
A Business Unit of
The Sherwin-Williams Company
(“Geocel Products Group”)
Cleveland, OH 44115
Phone: [phone]
Fax: [phone]
4. INSTALLATION:
TECHNICAL
DATA
®
ULTIMA
Roof Sealant
Ultima
®
Roof Sealant is a
high-performance elastomeric
sealant specifically designed for
roofing applications with minimal
surface preparation. Ultima Roof
Sealant provides a tough, durable,
watertight seal with excellent
adhesion to asphalt shingles, brick,
stone, metals, and wood substrates.
Product Benefits:
 Applies in adverse weather
 Sticks to damp & oily surfaces
 Remains flexible
 Asphalt compatible
 Resealable, may be applied
over itself
 UV resistant
 Exceptional elongation
 Paintable
to the mild solvent blend contained
in the sealant, Ultima Roof Sealant
is not a flammable liquid according
to NFPA liquid guidelines. Its clear
formulation is literally clear as glass
from the moment of application.
Grade: Gun grade consistency
Primer: Not required on most
surfaces. If primerless adhesion to a
particular substrate is in question, a
test application is recommended.
Contact Geocel Products Group's
Technical Service Department for
further information.
Packaging: 10.3 fl. oz. cartridge
Colors: Crystal clear
Limitations:
• Do not use on traffic-bearing
surfaces
• Do not use on extruded
polystyrene insulating
sheathing (styrofoam, etc.)
• Do not use on acrylic skylight
glazing surfaces
• Do not use in areas where food
is processed or stored
• For exterior use only due to odor
emitted during cure
• Do not use for potable water
applications
Joint Design: For optimum results,
joints should be a minimum of 4
times greater than anticipated
movement. Minimum recommended
joint size is 1/4" x 1/4". Maximum
joint size should be 1/2" x 3/8" in
depth.
Surface Preparation: Priming is
not required unless specified above.
Joints should be basically clean and
surface dry, although dampness
from dew will not interfere with
adhesion. Do not use xylene or
®
3. PRODUCT DESCRIPTION:
sealant does not contain plasticizers
(added to many sealants to promote
flexibility), which tend to migrate out
of other sealants, causing hardening
and shortening their useful life. Due