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EMSHIELD DFR2
EMSHIELD DFR3
UL 2079 Tested and Certified

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The EMSHIELD Family of Products

EMSHIELD DFR2 and DFR3 are a watertight, fire-rated, traffic-durable primary seal for both retrofit and new structural expansion joints in horizontal-plane applications.

EMSHIELD DFR2 and DFR3 eliminate the need for additional fire blankets, mineral wools, liquid sealants, cover plates, or other fire stopping materials.

For joints widths from 1 to 4-inches (25-100mm) where +25% and -25% (total 50%) of nominal material size joint movement is expected.

Can be used alone or under any other expansion joint cover, plate or filler where depth of substrate allows.

Both EMSHIELD DFR2 and DFR3 build on EMSEAL's track record of over 30 years of innovation in sealing structural expansion joints with impregnated foam sealants and are part of a comprehensive line of breakthrough, multi-function, structural expansion joint materials offered by EMSEAL. They are tested and certified by Underwriters Laboratories (UL), to the rigors of UL 2079 for deck and floor expansion joints.

EMSHIELD DFR2 (Deck, Fire-Rated 2-Hours)
UL-certified 2-hour fire-rated watertight expansion joint for use in a deck or floor with a 2-hour (or lower) fire rating. Used in deck-to-deck applications or deck-to-wall applications.

EMSEAL’s EMSHIELD DFR2 has been tested in accordance with UL 2079 in the configuration depicted in UL Systems: # FF-D-0075, # FF-D-1086, # FW-D-0052, #FW-D-1073.

EMSHIELD DFR3 (Deck, Fire-Rated 3-Hours)
UL-certified 3-hour fire-rated watertight expansion joint for use in a deck or floor with a 3-hour (or lower) fire rating. Used in deck-to-deck applications or deck-to-wall* applications.

EMSEAL’s EMSHIELD DFR3 has been tested in accordance with UL 2079 in the configuration depicted in UL Systems: # FF-D-0078, # FF-D-1090

*UL-generated illustrations for deck-to-wall available soon

Fire-retardant-impregnated foam is factory pre-coated on the underside with an intumescent fire-proofing material. The traffic surface receives a traffic-grade silicone coating.  The resulting composite is then factory compressed to less than its nominal size for installation into structural or other openings. 

EMSHIELD WFR2 (Wall Fire-Rated 2-Hours) for wall and vertical rise applications is now available. It can be combined with EMSHIELD DFR2 or DFR3 to create a completely fire-rated horizontal and vertical system.

EMSHIELD DFR2 and DFR3 provide a watertight, clean handling, UV stable, non-staining, low-temperature-flexible, high-temperature-stable, watertight, traffic durable and fire-rated joint seal in a single installation process.

Uses For expansion joints in decks and floors where watertightness and/or a fire-rating and/or traffic durability are required.  Application examples include:

• Stadiums • Arenas • Parking Decks • Floors • Stair Tower Perimeters • Elevator Tower Perimeters • Deck-to-Deck • Deck-To-Wall • Bridge Expansion Joints • Interior Floors Under Joint Covers

Product Description EMSHIELD DFR2 and DFR3 feature a traffic-grade silicone sealing surface adhered to a fire-retardant impregnated foam backing and an intumescent bellows on the bottom (fire) side.

The system is installed into epoxy adhesive field-applied to the sides of the the joint face.  A field-injected silicone sealant band seals the bellows to the substrate. (Note: A sealant band of intumescent caulk from the underside is NOT REQUIRED enabling the installation to be done entirely from the top side).  Joins between each stick are executed using a field-applied silicone sealant band at the top of the join and an intumescent sealant coating over the remaining foam at the adjoining faces.

Fig. 1: EMSHIELD DFR in Typical Deck-To-Deck Installation  (Shown in 3-inch DFR2)

Fig. 2: EMSHIELD DFR in Typical Deck-To-Wall Installation (Shown in 3-inch DFR2)

Features Watertight — EMSHIELD DFR2 and DFR3 are installed with the tensionless traffic-grade, fuel-resistant bellows facing the traffic ensuring that watertightness is achieved. Fire-Rated — The fire-retardant-impregnated foam and intumescent bellows is installed facing the lower floor ensuring 2-hour (DFR2) or 3-hour (DFR3) fire protection in accordance with UL-2079. Non-Invasive Anchoring — There are no hard metal-to-substrate connections with either EMSHIELD DFR2 or DFR3. This includes embedded pins, anchors, screws, bolts or tracks, trays or rails, flanges or coverplates. The system is locked to the joint faces by means of the 1) backpressure of the foam; 2) the epoxy adhesive, and 3) the injected sealant bands at the joint face. Versatility — The standard EMSHIELD DFR2 or DFR3 top surface color is gray (other colors are optional). The standard underside color is "intumescent-red".  This provides a visual inspection cue to ensure the presence of the fire-proofing.  At the designer's option, an additional silicone color coating can be applied to the underside. Joint-Size Variation —Uniform bellows appearance, and the ability to handle variations in joint size through size-switching. Sound Attenuation -- Floors sealed with EMSEAL impregnated foam sealants offer exceptional acoustic dampening and feature sound transmission coefficients virtually equal to that of the solid slab.

Factory-Fabricated Terminations and Transitions— as in all EMSEAL expansion joint systems, continuity of seal through changes in plane and direction is an essential performance differentiator. EMSHIELD DFR2 and DFR3 are manufactured in straight-run sticks which can be joined in the field to EMSEAL’s patent-pending DFR2 or DFR3 "Universal-90" Transitions and Terminations. Universal-90 Upturn Termination Universal-90 Flipped-Over as Downturn Termination Universal-90 Upturn Transition Universal-90 Flipped-Over as Downturn Transition These factory-fabricated single-piece 90-degree units have a 12-inch long leg and a 6-inch vertical piece on each end of the elbow.   The Universal-90's are symmetrically coated on both sides.  This allows them to be installed as an upturn or as a downturn.  Either leg can be trimmed in the field to connect to straight run material or to another Universal-90 when going, for example, up and over a curb, into a parapet, or up and down treads and risers. Universal-90 terminations end, on the 6-inch leg, in a 45o sealed and mitered end.  This allows termination as a stand alone upturn or provides a surface against to which a wall joint system can be married.  Flipped over, the Universal-90 termination unit can be alternatively installed as downturn termination where a joint runs off the deck.  In this use, the sealed, mitered end provides a drip edge for drainage of water off the joint. In addition to guaranteeing a continuous waterproof coating, EMSEAL’s "Universal-90's" allow for much faster and secure installation by eliminating field cutting or notching and bending at angles.

Performance Sizing EMSHIELD DFR2 Movement Capability: +25%, -25% (50% total) of nominal material size. Standard sizes from: 1" to 4" (25-100mm) Depth of Seal for all sizes: 4" (100mm).  Note: Thickness of concrete for 2-hour rating = 4" (100mm). Substrates must be solid, parallel and plumb. Supplied Product  Nominal Material Size Depth of Length Code ( = Joint Size at Mean T) Seal 6.56 LF (2M)  DFR2-100-100-02 1"  (25mm) 4" (100mm) Stick DFR2-125-100-02 1 1/4" (30mm) 4" (100mm) DFR2-150-100-02 1 1/2" (40mm) 4" (100mm) DFR2-175-100-02 1 3/4" (45mm) 4" (100mm) DFR2-200-100-02 2" (50mm) 4" (100mm) DFR2-225-100-02 2 1/4" (55mm) 4" (100mm) DFR2-250-100-02 2 1/2" (60mm) 4" (100mm) DFR2-275-100-02 2 3/4" (70mm) 4" (100mm) DFR2-300-100-02 3" (75mm) 4" (100mm) DFR2-325-100-02 3 1/4" (80mm) 4" (100mm) DFR2-350-100-02 3 1/2" (90mm) 4" (100mm) DFR2-375-100-02 3 3/4" (95mm) 4" (100mm) DFR2-400-100-02 4" (100mm) 4" (100mm) EMSHIELD DFR3 Movement Capability: +25%, -25% (50% total) of nominal material size. Standard sizes from: 1" to 4" (25-100mm) Depth of Seal for all sizes: 4" (100mm).  Note: Thickness of concrete for 3-hour rating = 5" (125mm). Substrates must be solid, parallel and plumb. Supplied Product  Nominal Material Size Depth of Length Code ( = Joint Size at Mean T) Seal 6.56 LF (2M)  DFR3-100-100-02 1"  (25mm) 4" (100mm) Stick DFR3-125-100-02 1 1/4" (30mm) 4" (100mm) DFR3-150-100-02 1 1/2" (40mm) 4" (100mm) DFR3-175-100-02 1 3/4" (45mm) 4" (100mm) DFR3-200-100-02 2" (50mm) 4" (100mm) DFR3-225-100-02 2 1/4" (55mm) 4" (100mm) DFR3-250-100-02 2 1/2" (60mm) 4" (100mm) DFR3-275-100-02 2 3/4" (70mm) 4" (100mm) DFR3-300-100-02 3" (75mm) 4" (100mm) DFR3-325-100-02 3 1/4" (80mm) 4" (100mm) DFR3-350-100-02 3 1/2" (90mm) 4" (100mm) DFR3-375-100-02 3 3/4" (95mm) 4" (100mm) DFR3-400-100-02 4" (100mm) 4" (100mm)

Colors Standard traffic surface color is gray (consult EMSEAL for options). Standard underside color is 'intumescent red' to facilitate visual inspection of presence of fire proofing.  Additional color coating on bottom side is available as an option--consult EMSEAL.

Testing and Standards EMSHIELD DFR2 and DFR3 have been tested and certified under UL 2079. EMSHIELD DFR2 and DFR3 meet the requirements of ASTM E1966, ASTM E119 and ASTM E1399. UL 2079, like ASTM E1966, was developed to encompass the fire testing of ASTM E119 and the movement cycling regime of ASTM E1399. EMSEAL’s EMSHIELD DFR2 and DFR3 have been tested in accordance with UL 2079 in the configuration depicted in UL Systems. (See UL Directory of system certifications and illustrations.) Use of this material in deck assembly configurations other than depicted in these named UL certified systems will not encumber or lower the resistance of the deck but is done so at the designers’ discretion and responsibility for design of a fire rated deck assembly that meets applicable standards for the project. FIRE RATING Expansion Joints in BRIDGE Design: With notable events such as Oakland California's tanker-fire fed structural collapse of the MacArthur Maze Freeway interchange roadway spans, fire-rating of bridge structures is being increasingly considered.  Extension of fire rated design across expansion joints can be achieved with EMSEAL's breakthrough fire-rated, traffic durable, high movement and watertight joint seal.  EMSHIELD DFR2 and DFR3 provide all of these functions in a single product installation.  Movement cycled and 2-hour fire (DFR2) and 3-hour (DFR3) tested to UL 2079, EMSHIELD DFR2and DFR3 satisfy all performance demands in a single installation process.   • Tech Data (.pdf) • Installation Instructions (.htm) • Installation Instructions (.pdf) • DFR2 GuideSpec (.htm) • DFR2 GuideSpec (.doc) • DFR3 GuideSpec (.htm) • DFR3 GuideSpec (.doc) • DFR2 CAD (.dwg & .pdf) • DFR3 CAD (.dwg & .pdf) • Request DFR2 Sample • Request DFR3 Sample • UL and ULC Directory Listing Index • MSDS--DFR2 Foam    MSDS--DFR2 Intumescent Sealant    MSDS--DFR2 Silicone Sealant    MSDS--DFR2 Epoxy • MSDS--DFR3 Foam    MSDS--DFR3 Intumescent Sealant    MSDS--DFR3 Silicone Sealant    MSDS--DFR3 Epoxy • FTIR/DSC Certification EMSHIELD--Wax Free EMSHIELD DFR References Click to learn more... ◊ Berlin Federal Prison

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Expansion joints and precompressed joint sealants by EMSEAL

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