3 to 2 ratio (002)

Core Bore Firestop System

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UNIQUE Core Bore Seal Firestop System Top view

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UNIQUE Core Bore Seal- CBS

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The UNIQUE Core Bore Seal Firestop System is a revolutionary way to firestop, water and smoke-seal abandoned (empty) core holes in fire-rated concrete slabs and walls.  No need to access the floor below during installation!

Informational Links

SDS Information
Certificate of Compliance
Certificate of Conformance
Product Data Sheet
Engineering Judgement
Product Specifications

Description

Core Bore Firestop System

Use our UNIQUE Core Bore Seal (CBS) Firestop System to cover, seal and firestop empty core holes in concrete slabs or walls during construction and post-construction. The Core Bore Seal Firestop System is completely removable if the abandoned core should need to be reclaimed sometime in the future.

Existing Construction

In existing construction, these core holes are often abandoned when sleeves or conduits in a concrete floor or fire-rated concrete barrier are removed. Prior to the invention of this innovative UNIQUE product, abandoned core holes were often left unsealed, destroying the integrity of the fire-rated barrier. Or they were filled with concrete making the core hole useless in the future. Our Core Bore Firestop System solves both problems, restoring the fire-rated wall to it’s initial rating while still preserving the function of the core hole in the event it will be used again.

New Construction

In new construction, sometimes extra core holes are drilled, only to find out they won’t be needed for the foreseeable future. Our Core Bore Firestop System effectively seals and firestops empty core holes in both concrete floors and vertical concrete walls, especially those that may be used in the future, but not necessarily immediately. Unlike other methods that seal the core hole permanently, the Core Bore Firestop is completely removable!

IMPORTANT NOTE: All jurisdictions require that any breach in a fire-rated floor or wall be filled, even overnight. When you know the core hole will be used fairly soon, consider installing our UNIQUE Threaded Firestop Sleeve System and our UNIQUE Threaded Endcaps for Empty Sleeves. This combo prepares the core hole with our most robust firestop sleeve along with included Intumescent Putty and ensures that the core hole is ready to go on a moment’s notice when the need arises.

Easy to Install with NO TOOLS!

Our Core Bore Firestop System saves installation time and money while meeting all building codes. It is made of high-grade steel plate (0.60) and an intumescent firestop muffin (plug). It comes with everything needed to install it except the Silicone Firestop Sealant, available on this website.

IMPORTANT Note About Sealant: Our Core Bore Seal Firestop System was UL tested using Silicone Firestop Sealant ((STI brand sealant available on this website) and they must be used together for UL compliance and to obtain AHJ acceptance.

For concrete floor installation, the Core Bore Seal is inserted into the core hole with a bead of Silicone Firestop Sealant under the top plate. This will smoke seal the Core Bore Seal to the slab. The top plate can be covered by carpet. The system may be removed when the core hole is again needed.

For a vertical concrete wall, please call the factory to order a slightly modified product specifically for vertical installations. We want to ensure your success!

How to Order the Core Bore Firestop System on this Website

New Sizes! Now available in ten sizes: 1.5″, 2.0″, 2.5″, 3.0″, 3.5″, 4.0″, 4.5″, 5.0″, 5.5″ and 6″. Order the size Core Bore Firestop System that is closest to your core width measurement without going over.

For use in a vertical concrete wall, questions about choosing the correct size, installation or anything else, please call our friendly expert Customer Service Support at 251-960-5018.

UL Testing and Listings
We just recently completed UL testing on the UNIQUE Core Bore Seal using Silicone Firestop Sealant at the STI burn lab and we passed. STI was very gracious to help us test this UNIQUE device. Our CBS Firestop System was UL tested using Silicone Firestop Sealant (STI brand sealant and available on this website) and they must be used together for UL compliance and to obtain AHJ acceptance. UL Listings for the UNIQUE Core Bore Seal Firestop System are available and will be posted to the website soon. To obtain an emailed copy call our Customer Service. There are 6 informational documents available now on this website to submit for AHJ approval.

IMPORTANT:

We guarantee AHJ acceptance. Your System is approved when the Inspector says it is! Use our email Inspector Form for pre approval by your AHJ.

Installation Procedure

Core Bore Seal is quick and easy to install with no tools required:

IMPORTANT: Our Core Bore Firestop System was UL tested using Silicone Firestop Sealant (STI brand sold on this website) and they must be used together for UL compliance and to obtain AHJ acceptance.

For Concrete Floor Installation

  • Wipe the top edge of the core hole with a clean damp cloth to remove all dirt and debris so a good seal can be made.
  • Apply a 3/8″ to 1/2″ bead of Silicone Firestop Sealant to the edge of the floor where the Core Bore Seal will make contact.
  • Apply a 3/8” bead of Silicone Firestop Sealant under the Core Bore Seal plate where it makes contact with the floor.
  • Be sure the STOP sign is up and carefully center and then place the Core Bore Seal in the core hole. The nut holds the system together and is not removed during the installation process.
  • Step on the plate. Wipe away excess sealant from the plate. ALL DONE!

For Vertical Concrete Wall Installation

Note: If you plan to use the UNIQUE Core Bore Seal for a vertical concrete wall, please call the factory. We will deliver a slightly different Core Bore Seal with prongs to make vertical installation easier. We want to ensure your success!

  • Wipe the outer edge of the core hole with a clean damp cloth to remove all dirt and debris so a good seal can be made.
  • Apply a 3/8″ to 1/2″ bead of Silicone Firestop Sealant (STI brand and available on this website) to the edge of the core hole in the wall where the Core Bore Seal will make contact.
  • Apply a 3/8” bead of Silicone Firestop Sealant under the Core Bore Seal plate where it makes contact with the concrete wall barrier.
  • Be sure the STOP sign is facing you and carefully center and then place the Core Bore Seal in the core hole. The prongs supplied on the Core Bore Firestop Seal for Vertical Installations will help hold the Core Bore Seal in place while the Sealant dries and cures. The nut holds the system together and is not removed during the installation process.
  • Press the Core Bore Seal into the core hole until the top plate is flush with the wall. Wipe away excess sealant. ALL DONE!

Inspector Form

Use this convenient form to send your proposed firestopping system specs to your AHJ (Authority Having Jurisdiction) for pre approval. Your System is approved when the Inspector says it is! Note that you will normally use one AHJ form for each UNIQUE Fire Stop product you specify, but in this case, both the Core Bore Seal and the required Silicone Firestop Sealant are on one form.