Rectorseal Metacaulk Box Guard User Manual

Labor Saving Firestop

for Electrical Boxes

Highly Intumescent

•

1 & 2 Hour Rated Systems

•

Tamper Resistant -

•

Adheres to inside rear of the Box

Non-Conductive

•

Fits Most Metal Box Sizes

•

Easy to Install & Prefab -

••

No Mixing or Extra Equipment

Cost Effective

•

Single 1 13/16" x 2 13/16" x 1/4" #66366

Patent #
6,207,085
6,252,167

Metacaulk® Box Guard™ is a highly intumescent, re-rated pad for use in electrical
boxes. For steel electrical box membrane penetration applications, it is inserted on the
inside back wall of an electrical box. When exposed to re, Box Guard™ will expand
forming a char that will seal off the opening and prevent the spread of ames and limit
the temperature rise on the unexposed surfaces. A labor saving, economical alternative
to putty pads. Great for retrot jobs. STC 53 Rating, Tested in a UL 411 wall
assembly/section to ASTM E90.

2601 Spenwick Drive - Houston, TX 77055 tel: [phone]

www.RectorSeal.com fax: [phone]

Double 3 11/16" x 3 3/4" x 1/4" #66367
Double 4 11/16" x 4 11/16" x 1/4" #66369

for 5.S

©2014 RectorSeal C-K-14BG

Code Description Qty.

66366 Single box 50
66367 Double box 50
66369 4-

11

/16” x 4-11/16” 50

Box Guard

™

Fire-rated pad for electrical boxes

Application

• One component fire-rated for use
in electrical boxes • It is inserted on the inside
back wall of an electrical box
prior to wiring • Replaces Putty Pads

FEATURES

• Adheres to back of electrical box

• Non-conductive

• Highly intumescent
STC rating 53

•

US Patent No. 6,207,085 & 6,252,167

For Use:

• Fits most Metallic Outlet Box in 1-2 hr re rated gypsum board wall assemblies.

For more details see UL Fire Resistance Directory or visit www.metacaulk.com

Install by removing adhesive cover on back of BoxGuard™, then rmly adhering BoxGuard™
to rear inside wall of steel electrical box.

Box Guard™

ELECTRICAL BOX INSERT

APPLICA

to maintain the integrity of fire rated wal

®

TION: Use inside electrical boxes

assemblies, restricting the passage of flames

™

and limiting the temperature rise on the
unexposed surfaces.
INSTRUCTIONS: Remove protective paper
from tape on reverse side of pad and insert
tape side to inside back wall of electrical box.

l

Use this pad for single box 2” x 4”.
Installation must comply with NEC 314.16

or other applicable codes.

Volume 1.3 cu. in. (21 cm

3

) STC Rating 53

WALL OPENING PROTECTIVE MATERIALS

FIRE RESIST ANCE CLASSIFICATION
SEE UL DIRECTORY OF PRODUCTS

CERTIFIED FOR CANADA AND UL FIRE

RESISTANCE DIRECTORY

For Additional information, refer to

Material Safety Data Sheet &

12Y3

Product Data Sheet

“

Floor Penetration Fire Stop when installed as described in the

Subject to the conditions of Approval as a Wall and

current edition of the FM Approval Guide.

U.S. Patent No. 6,207,085 & 6,252,167

1-800-231-3345 • Made in U.S.A.

RECTORSEAL

Product Code No. 66366 Net Wt. 0.8 oz. (24 G)

”

label facing out

C/BG-K-14