Product Technical Guides : US-EN Firestop Systems Guide For Specifiers | Page 48

FIRESTOP BOX INSERT
Product description
• An intumescent insert designed for easy installation inside of outlet and switch
boxes to provide protection in fire-rated assemblies.
Product features
•
•
•
•
No expiration date alleviates shelf life concerns
Fast installation thru self adhesive back
Applied by hand, no tools required
Easy installation access from outside the wall
Areas of application
• Electrical outlet and switch boxes.
For use with
• Gypsum wall assemblies with metal or wood studs
• In accordance with Hilti’s (CLIV “UL classification code”) approval, when the
Firestop Box Insert are installed on boxes on both sides of a wall as directed,
the horizontal separation between outlet boxes on opposite sides of the wall
may be less than 24 in. provided that the boxes are not installed back to back.
Examples
• Renovation projects applications, where only the interior of box is accessible.
Installation instructions
• See Hilti Literature or third-party listings for complete application and
installation details
WALL OPENING PROTECTIVE
MATERIAL
FIRE RESISTANCE CLASSIFICATION
SEE PRODUCT CATEGORY IN
UL FIRE RESISTANCE DIRECTORY
66Y7
Technical Data
Dimensions 1 13/16" x 2-13/16" x 1/4" (for use with 2" x 4" boxes)
3-11/16" x 3-3/4" x 1/4" (for use with 4" x 4" boxes)
4-3/8" x 4-3/8" x 1/4"
(for use with 4-11/16" x 4-11/16" boxes)
Color Black
Surface burning characteristics (ASTM E 84) Flame Spread: 5
Smoke development: 5
Tested in accordance with ASTM E 84, ASTM E 119 / UL 263,
ASTM E 90 (Sound transmission classification 53*)
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FILL, VOID OR CAVITY MATERIALS
CLASSIFIED BY
UNDERWRITERS LABORATORIES, INC.
FOR USE IN TROUGH-PENETRATION
FIRESTOP SYSTEMS
SEE UL FIRE RESISTANCE DIRECTORY
66Y7
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