Gasket System for Exterior Curtainwall Panels
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ISEAL EP

ISEAL EP (Exterior Panel) is a compressed fit extruded silicone gasket system developed specifically for panel technology. ISEAL EP is for above grade exterior wall panel conditions, it provides thermal protection, air & water infiltration protection, and is not susceptible to UV damage.

The system consists of extruded silicone gaskets that are adhered to the substrate/panels with silicone sealant. A proprietary ISEAL EP Exoskeletal 4-way splice is used at all four-way vertical-to-horizontal splices to ensure continuity of performance at splices.

Typical Vertical Joint

Typical Horizontal Joint

The Steel Network is the exclusive manufacturer of the innovative iSeal system by Peer Engineered Solutions. To view technical information and place your order, visit our website today.

Benefits of the ISeal Exterior Panel System

Proven Materials

The ISEAL EP system uses proven silicone materials. Silicone has been used for over 40 years in conjunction with panel products.

Installation Quality Control

The ISEAL EP extrusion is designed with sealant depth gauging tabs, which allow for easy visual confirmation of correct sealant depth and accurate alignment of panels.

Proven Performance

The ISEAL EP system, including the exoskeletal 4-way splice has been subjected to rigorous laboratory testing to validate system performance.

Faster Dry-In

With the ISEAL EP system the 4-Way splice joints are installed as the panels are erected, providing completed panel perimeter joints with each installed panel. With traditional sealant/backer rod joints the joints are typically installed after all panels are installed, leaving the building exposed to the elements during construction.

Movement Capacity

The ISEAL EP gasket is highly flexible and able to easily accommodate building movements while imparting lower loads on the panel joints as compared to a traditional sealant/backer rod joint.  This reduces the risk of adhesive joint failure.

Factory Installation Quality

Over 90% of the ISEAL EP system is shop installed in a controlled environment with rigorous quality control, eliminating the quality challenges of field installed sealant/backer rod joints.

Example Installation Details

Horizontal Seals Installed in In Plant

Horizontal Seals Installed in On-Site

Exoskeletal Seal Splice - Outside Face

Exoskeletal Seal Splice - Inside Face

Installation

Over 90% of the ISEAL EP system is shop installed. The horizontal and vertical seals are shop installed. The 4-way joint is installed in the field as the panels are set. All joints are installed by trained technicians.

The horizontal joint at the panel below and the vertical joint at the panel edge are filled with sealant to the top of the depth gauge. Finally, the Exoskeletal Seal splice is installed at the 4-way splice.

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