Expansion Joints and Pre-Compressed Sealants
(click image to enlarge)
• Primary seal
• High-movement, tensionless silicone bellows
• Rapid installation--new or retrofit
and practically versatile
• Easily handles
changes in plane and direction
• Easily handles
curved expansion joints
Ideal for new installations as well as expansion joint repair and retrofit
As a watertight seal in joints in
protected deck applications beneath cover-plates, or at perimeters in
Decks: structural joints, perimeter joints,
isolation joints at stair-towers/elevators
concrete covers on above-grade tunnels, wastewater tanks etc.
back-up seal beneath expansion joint-cover assemblies
(12mm - 200mm)
Note: Sizes under 1 1/2"
are manufactured with a single bellows and are supplied as 10' lengths on
reels. Larger sizes incorporate multiple
bellows and are supplied as 6' sticks.
• Total 100% (+50% and -50%) of nominal supplied size.
HORIZONTAL COLORSEAL is ideally suited for ensuring watertightness in
horizontal-plane structural, seismic, and abutment joints in non-trafficked
decks of cast-in-place, precast or
HORIZONTAL COLORSEAL is among a family of
pre-compressed hybrid sealant technologies. Developed by EMSEAL
in the early 1980's, pre-compressed
combine the best of liquid and preformed sealant features while
eliminating the shortcomings of each. EMSEAL has an
unrivaled 30+ year track record of performance.
COLORSEAL combines a factory-applied and cured silicone
bellows with an impregnated
expanding foam backing and is watertight,
clean handling, UV stable, non-staining, low temperature flexible,
HORIZONTAL COLORSEAL features EMSEAL’s unique microsphere-modified
acrylic impregnation infused into a cellular foam base material and is
coated with a high-grade silicone coating.
Related products include:
for aesthetically compatible transition to joints in the vertical plane.
COLORSEAL-DS (Double sided) for shallow-substrate applications.
for non-pedestrian-trafficked, seismic and structural joints in decks,
roofs, stair-tower perimeters etc, is SEISMIC COLORSEAL shipped and
installed into EMSEAL-supplied epoxy.
Why silicone for the bellows? Polyurethane sealant options
have been proved to suffer dramatic modulus and other physical
properties changes at low temperature and over time. The silicone
used on HORIZONTAL COLORSEAL remains pliant, UV stable and watertight over
time and temperature gradient.
Tensionless--The bellows holds the key to HORIZONTAL COLORSEAL's
Backpressure from the stored strain energy of the pre-compressed foam
secures the system to the substrate and ensures that the silicone
never under tension from the effects of joint movement.
comprised of a
pre-cured block of silicone over an un-impregnated foam backing must
still be caulked to the substrate with large applications of sealant.
This flanking sealant still suffers the same shortcoming of
conventionally installed liquid sealant, namely
tension during joint opening.
Pre-compressed--Unlike imitations that use closed-cell foam
backings that must be forced into compression in the field, HORIZONTAL
COLORSEAL is supplied pre-compressed to smaller than the joint
size. This means that neither the bellows nor the corner bead, nor
the foam backing are in tension either during the full extent of
movement capability nor as a result of
compression set typical in closed-cell foams.
anchoring--means you are not drilling and screwing into sensitive
substrates. This eliminates the risk of spalls and enables installation
into inside corners that are impossible to seal with screw-anchored
R-value--An R-value of approximately 2.15 per inch of depth
thermal insulation at structural joint-gaps
where thermal loss through strip-seals or looped membranes is often significant.
R-value is higher when the joint gap is wider as the foam becomes less
HORIZONTAL COLORSEAL is produced by coating an
acrylic-impregnated open-cell polyurethane foam with silicone.
• The expanding foam has an acrylic adhesive infused
into the cellular foam base material.
• The silicone external facing is factory applied at a width
greater than maximum joint extension and is cured before final compression.
• When compressed, a bellows is created in the coating. As
the joint moves, the bellows fold and unfold; the silicone primary seal is
thus virtually NEVER IN TENSION.
• HORIZONTAL COLORSEAL is supplied in shrink-wrapped lengths
(sticks or reels). It is precompressed to less than the joint size. After insertion,
it expands against the joint faces.
• Non-invasive anchoring and sealing against the substrate
is achieved through a combination of the backpressure caused by the stored
strain energy of compression in the foam backing, a field-applied epoxy
adhesive, and the installation of a field-injected corner bead of silicone at the
Figure 1: HORIZONTAL COLORSEAL in Typical
Non-Traffic Deck-to-Wall Condition
• Substrates must be capable of resisting, without
deflection, displacement, or deformation, at least 2.5 pounds of
backpressure per square inch of the HORIZONTAL COLORSEAL material.
• Metal coverplates (by others) must be installed above
HORIZONTAL COLORSEAL where spiked-high-heel
pedestrian traffic, or other high-pointload/small-contact-surface area loads
• If movement exceeds ±50% (100% total) of joint-gap size at
mean temperature, integrity of seal will be affected.
• Capable of lateral ("shear") movements up to ±50% (total
100%) of joint size at mean temperature.
• Standard sizes from 1/2" (12mm) to 10" (250mm). Other sizes
available subject to review of application: consult EMSEAL.
HORIZONTAL COLORSEAL is used for
applications that are protected from direct contact with traffic; for
example, recessed slightly below concrete surface and covered with a
metal plate, or located next to a wall or in other locations where no
traffic, pedestrian or otherwise, can contact the product.
IMPORTANT: The following instruction summary is generic.
Refer to "Install Data: Horizontal Colorseal" and job-specific instruction
of EMSEAL technician for complete procedures.
• Store indoors at room temperature. Expansion is quicker
when warm, slower when cold.
• Ensure material nominal size matches joint size.
• Mix epoxy now and trowel onto joint faces.
• Remove shrink-wrap packaging, hardboard (on sticks), and release
• Wipe factory-applied release agent off silicone facing
using clean, lint-free rag made damp with toluene.
• Apply thin bead of silicone sealant along face of bellows
at end where the material will join with next length.
• Insert material into joint with at least a 1/4" (6mm)
recess and adhere to one side. Material expands to seal joint. (Wedge
larger-sized material in place while it expands.)
• Blend silicone at butt joins into the silicone bellows to
create a consistent finished appearance being sure not to restrict the folds
of the bellows.
• Once material has equalized its expansion across the
joint, inject and tool a 1/4" x 1/4" (4mm x 4mm) corner bead at the
substrate-to-bellows interface (see Fig. 1). (Note: unpainted metal surfaces
and some natural stone surfaces may require priming -- consult EMSEAL.)
UNIVERSAL & CUSTOM 90's
(US Patent 9,200,437 Patent Pending)
and UNIVERSAL & CUSTOM 90's
as in all EMSEAL expansion joint systems, continuity of seal through
changes in plane and direction is an essential performance
HORIZONTAL COLORSEAL is manufactured in straight-run sticks which can be joined
in the field to EMSEAL’s patented and patent-pending "Universal-90" transitions.
factory-fabricated single-piece 90-degree units have a 12-inch
long leg and a 6-inch vertical piece on each side of the elbow.
The Universal-90 transition pieces are symmetrically coated on
both faces. This allows them to be installed as an inside
corner or as an outside corner.
In addition to
guaranteeing watertightness, EMSEAL’s "Universal-90's" allow for
much faster and secure installation by eliminating field cutting
or notching and bending, at angles.
Custom-90's, coated on just the weather-facing faces, are also
available when field conditions and measurements are known up front. Consult EMSEAL.
(More on Universal-90's)
Flipped-Over as Downturn Transition
Availability and Price
is available for shipment internationally.
are available from local representatives and/or directly from the
• The product range is continually being updated, and
accordingly EMSEAL® reserves the right to modify or withdraw
product without prior notice.