3M Fire Protection Products

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Performance and Typical

Physical Properties

Note: The following technical information and data should be considered representative or typical

only and should not be used for specification purposes.

Test Method

Surface Burning:

Flame Spread 5, Smoke Development 250

ASTM E 84

Air Leakage:

Less than 1 CFM/sq. ft. @ 400°F

less than 1 CFM/sq. ft. @ ambient.

UL 1479

Section 6

Product

Size

Color

Mass Units/Ctn. Wt./Ctn

3M Fire Barrier

Block B258

2-3/8 in. x 5-1/8 in. x 7-7/8 in.

(60 mm x 130 mm x 200 mm)

Maroon

575g

12

15.2 lbs.

6,9kg

3M Fire Barrier

Plank PK39

2-3/8 in. x 5-1/8 in. x 39-3/8 in.

(60 mm x 130 mm x 1000 mm)

Maroon

2875g

3

19.0 lbs.

8,6kg

3M Fire Barrier

Plug PLG2

2 in. diam. x 3-1/8 in. high

Maroon

120g

4

1.1 lbs.

0,48kg

3M Fire Barrier

Plug PLG4

4 in. diam. x 3-1/8 in. high

Maroon

360g

4

3.2 lbs.

1,4kg

Installation Techniques

Consult a 3M Authorized Fire Protection Products Distributor/Dealer or Sales Representative for

applicable UL, cUL, ULC, Interek or other third-party drawings and system details.

Blocks and Planks

1. Install Fire Barrier Blocks or Fire Barrier Planks with the 5 in. (130mm)

dimension projecting through the floor or wall and centered within the

opening; minimum 4-1/2 in. seal thickness is required.

2. Continue to install Blocks/Planks until through opening is completely full,

and blocks/planks are firmly packed together. Block/Plank can be re-sized

in the field as needed provided the 5 in. (130mm) dimension is maintained

through the opening. No compression is necessary.

3. Install Fire Barrier Rated Foam FIP 1-Step between the Blocks/Planks and

the periphery of the opening and between Blocks/Planks and penetrants.

Foam to be installed full depth of the Blocks/Planks.

4. Check for any openings between Blocks/Planks, framing, and penetrating

items. Fill any visible openings with the required depth of Foam. Consult

individual UL systems for Foam depth and location requirements.

5. To remove the Blocks/Planks, gently pull them out and place on a clean

surface. After penetrants are routed through, or removed from the opening,

replace the Blocks/Planks, making sure that they are firmly packed and

fully filling the opening. Install Foam in any voids as required.