Single-Unit, Fire-Rated Expansion Joint System Designed to Resist Vandalism

Security-Designed Expansion System

2-Hour Fire-Rated Expansion Joint for Interior and Exterior Walls

For joints from 25mm to 150mm where ±25% (50% total) of nominal material size joint movement is expected.

SecuritySeal is a pick-resistant, watertight, 2-hour fire-rated, expansion joint for locations requiring a hardened tamper-resistant surface. Institutional walls such as those found in prisons, detention centers, medical and psychiatric hospitals, school facilities and day-care centers are some of the many venues where SecuritySeal is the perfect choice.

The system is comprised of fire-retardant-impregnated foam which is factory pre-coated on both facing sides with an intumescent fire-proofing material. Each side then receives a top coat of waterproof, tamper resistant polyurethane. The system is supplied compressed smaller than the width of the joint gap. The precompressed foam is installed into the joint against field applied epoxy. A field-injected polyurethane sealant band seals the bellows to the substrate at weather-facing installation surfaces (the sealant bands are optional where exposure to water is not expected). Joins between each stick are executed using a field-applied polyurethane sealant at the bellows' edge of the join and intumescent caulking on the foam face.

SecuritySeal functions as a watertight primary seal with movement capabilities of +/- 25% (50% total) available in widths for gaps ranging from 25mm to 150mm. It is designed to be used in both retrofit and new structural expansion joints and in all other openings in vertical-plane applications

Features

Secure Pick-Resistant Seal
The outer watertight layer is made of a hardened flexible polyurethane which resists deterioration and destruction from picking.

Fire-Rated
It has been tested and certified by Underwriters Laboratories (UL) to the rigors of UL 2079. As a single unit 2-hour fire-rated expansion joint it eliminates the need for additional fire stops at the joint gap thereby eliminating the need for multiple products to perform the roles of sealing, bridging and fire-rating joints.

Sound Suppression
A single-sided installation of standard 4-inch SecuritySeal yields a tested Sound Transmission Class rating of STC-62* in a STC 68 wall. It also receives an Outdoor-Indoor Transmission Class rating of OITC 52. (*for comparison purposes a dual-sheetrock US domestic wall averages an STC 33 rating; STC-62 is almost 90% quieter than such a wall. Even a high-density concrete wall will only range from STC 40 to STC 50).

Watertight
All EMSEAL preformed-sealant expansion joint systems are manufactured to be "watertight by design". The acrylic-impregnated open-cell foam is factory pre-coated with water-resistant polyurethane which acts as the primary waterproof seal.

Non-Invasive Anchoring
There are no hard metal-to-substrate connections with SecuritySeal such as embedded pins, anchors, screws, bolts or tracks, trays or rails, flanges or coverplates.
There are no hard metal-to-substrate connections with SecuritySeal such as embedded pins, anchors, screws, bolts or tracks, trays or rails, flanges or coverplates.

Joint-Size Variation
SecuritySeal features the ability to handle variations in joint size through size-switching.

Energy Efficiency
EMSEAL's foam technology also acts as an efficient air and thermal barrier. This means that indoor air quality and HVAC balance can be controlled while insulating the interior space from hot and cold exterior conditions. The non-metallic, non-invasive anchoring means that with SecuritySeal there are no thermal breaks introduced at structural or other joint openings.

Twice the Movement of Pick-Resistant Liquid Sealants

Liquid sealants offered for security applications achieve their tamper resistance primarily from their hardness. Hardness restricts movement. In general pick resistant liquid sealants in traditional "caulk and backer rod" configuration have movement capability of +/- 12.5% or 25% total.

Because of the bellows configuration of SecuritySeal, the tamper-resistant polyurethane sealant is not stretched or compressed as in typical field-applied installations. Instead, the bellows folds and unfolds with joint movement. This results in the ability to offer a full 50% total movement capability thereby extending the use of tamper-resistant sealant technology to structural movement joints or other building component connections exposed to temperature changes.

Life-Safety Construction

Behind the pick-resistant outer surface is a fire-retardant-impregnated foam which is factory pre-coated on both inside and outside sides with an intumescent fire-proofing material. Each side is then coated with a polyurethane coating. The resulting composite is then factory compressed to less than its nominal size for installation into structural or other openings.

Because EMSHIELD SecuritySeal is coated on both sides it is an effective fire-barrier from either side in interior demising walls or partitions. Installed in exterior joints SecuritySeal can help to prevent wrap-around fires that exit the building through joint openings, wrap around the outside of the building and reenter the building through the joint at the next floor level.

EMSHIELD SecuritySeal provides a pick-resistant, watertight, clean handling, UV stable, non-staining, low-temperature-flexible, high-temperature-stable, watertight, energy-efficient and fire-rated joint seal in a single installation process.

Product Description

EMSHIELD SecuritySeal features a dual-sided polyurethane sealing surface adhered to a fire-retardant impregnated foam backing and an intumescent bellows. Both sides of the expansion joint are waterproof and fire-rated.

The polyurethane faces of EMSHIELD SecuritySeal
are available in a choice of
Tru-White and Limestone.
Sealed sides can be same or different colours.

The system is installed into epoxy adhesive field-applied to the joint faces. A field-injected polyurethane sealant band seals the bellows to the substrate. Joins between each stick are executed using a field-applied polyurethane sealant band at the join and an intumescent sealant coating over the remaining foam at the adjoining faces.

Figure 1: EMSHIELD SecuritySeal in Typical Wall-to-Wall Installation Multiple Bellows (45mm-150mm)

Figure 2: EMSHIELD SecuritySeal in Fireproof Block Installation

Figure 3: EMSHIELD SecuritySeal in Wall-to-Corner Block Installation

Figure 4: EMSHIELD SecuritySeal in Typical Wall-to-Wall Installation Single Bellow (25mm-50mm)

Factory-Fabricated Transitions
As in all EMSEAL expansion joint systems, continuity of seal through changes in plane and direction is an essential performance differentiator.
EMSHIELD SecuritySeal is manufactured in straight-run sticks which can be joined in the field to EMSEAL’s patent-pending SecuritySeal "Universal-90" Transitions.

Universal-90 Upturn Transition         Universal-90 Flipped Over as a Downturn Transition 

These factory-fabricated single-piece 90-degree units have a 150mm long leg and a 300mm vertical piece on each end of the elbow. Custom-90's are also offered with varying leg lengths manufactured for specific installations. 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.

In addition to guaranteeing a continuous waterproof coating, and continuity in the fire barrier, EMSEAL’s "Universal-90's" allow for much faster and secure installation by eliminating field cutting or notching and bending at angles.

 EMSHIELD SecuritySeal Tech Data