Product Overview

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PRODUCT DATA SHEET

METACAULK

COVER GUARD™

Fire-rated gasket for electrical boxes

December 2017

be used as a solution for stan-

dard electrical boxes when the

100 square inch rule is violated.

Metacaulk

COVER GUARD

™

is UL tested and can be used

with both metal and plastic cover

plates. Tested conditions for one

and two hours.

4. Installation

Instructions

Metacaulk

COVER GUARD

™

easy to install. 1) Place aluminum

foil side of Metacaulk

COVER

GUARD

™

against inside of elec-

trical face plate. 2) Do not re-

move any material, ﬁlm or foil from

Metacaulk

COVER GUARD

™

. 3)

Install face plate with Metacaulk

COVER GUARD

™

over switch or

receptacle and secure face plate

with screws.

2. Material Properties

Asbestos Fillers None

Solvents None

Hazardous Ingredients None

Sizes :

66276 Single switch

66274 Double switch

66272 Single receptacle

66270 Double receptacle

66265 Single Decor

66266 Double Decor

Packed 50 per case

Color Black

ASTM E 84, UL 723 Tunnel Test

Flame Spread 5

Smoke Index 5

Sound Transmission Class

STC Rating 54*

*Tested in a UL 411 wall assembly/section to ASTM E90

3. Applications

Metacaulk

COVER GUARD

™

used when electrical boxes are

installed in rated walls facing op-

posite directions and horizontally

separated by less than 24". Meta-

caulk

COVER GUARD

™

can also

1. Product Description

Metacaulk

COVER GUARD

™

a single component ﬁre rated

gasket for use with electrical

boxes when addressing the

"24 inch rule". It is mounted on

the inside of the cover plate

and installed at the same time

as the cover plate, covering

the opening and providing the

necessary ﬁre protection. When

exposed to heat, Metacaulk

COVER GUARD

™

's highly in-

tumescent nature causes it to

expand forming a char that

will seal off the opening and

prevent the spread of flames

and limit the temperature rise

on the unexposed surfaces.

Metacaulk

COVER GUARD

™

is applied by hand, does not

take up volume in the electri-

cal box and is a labor saving

replacement for putty pads in

normal applications. U.S. Pat-

ent No. 6,207,085; 6,252,167 &

7,348,484.

Metacaulk

COVER GUARD

™

Features

* Easy to Install

* Cost Effective

* Great for safe retroﬁt applica-

tions

* Reduces sound transmission

For list of systems see metacaulk.com.

Summary of content (2 pages)

PAGE 1
December 2017 P R O D U C T D ATA S H E E T For list of systems see metacaulk.com. METACAULK® COVER GUARD™ Fire-rated gasket for electrical boxes 1. Product Description Metacaulk® COVER GUARD™ is a single component fire rated gasket for use with electrical boxes when addressing the "24 inch rule". It is mounted on the inside of the cover plate and installed at the same time as the cover plate, covering the opening and providing the necessary fire protection.
PAGE 2
METACAULK® COVER GUARD™ 5. Testing Data Metacaulk® COVER GUARD™ is classified by Underwriters Laboratories, Inc. under Wall Opening Protective Material as found in the Fire Resistance Directory. For specific test criteria see UL Fire Resistance Directory or call RECTORSEAL. Metacaulk® COVER GUARD™ was tested to UL 263/ ASTM E-119 standard, "Fire Tests of Building Construction and Materials". It meets the requirements of all model building codes.