TDS
3M
™
Fire Block Foam FB-Foam
Product Data Sheet
1. Product Description
3M
™
Fire Block Foam FB-Foam is a ready-to-use
foam reblock designed to help prevent the spread of ames and smoke in residential Type V and commercial
non-rated construction*. This product is intended to resist the free passage of ame and the by-products of
combustion within the concealed space of a oor, ceiling or wall cavity by restricting the movement of air, re
and smoke. Also acts as a draftstop to restrict air inltration and movement. Meets current reblocking sealant
requirements of the International Building Code (IBC) and International Residential Code (IRC), and state and
local codes based on the IBC and IRC. 3M
™
Fire Block Foam FB-Foam is recognized as a requirement to the
methods prescribed by IBC and/or IRC codes for maintaining the integrity of penetrations of reblocking and
for draftstopping.
Product Features
•
Heat-resistant up to 240° F (115° C)
•
ASTM E 84 Class 1 (modied)
•
Draftstop ― helps reduce air inltration
•
Thermal insulator ― R-Value of 4 to 5 per inch
typical
•
Ready-to-use (no mixing required)
•
Tack-free in approximately 5 minutes
• Expands to quickly and effectively seal openings
• Meets International Building Code
(IBC) and International Residential
Code (IRC) Fireblocking Requirements
•
Sag-resistant formulation
•
Excellent adhesion
—
bonds to concrete,
brick, metals, wood, plastic and cable
jacketing
•
Minimal shrinkage
2. Applications
For use in residential Type V and commercial non-rated construction in areas that require sealing to maintain
the integrity of a reblock. Use 3M
™
Fire Block Foam FB-Foam to seal interior construction voids around wires, pipes, cables and other penetra-
tions in non-rated wood or steel-framed construction. May also be used around non-rated framing gaps/voids. Also acts as a draftstop to help
prevent unwanted air inltration. When properly installed, 3M
™
Fire Block Foam FB-Foam expands during application to more completely ll
openings compared to conventional reblock caulks. It has been tested to remain in place, which is more suitable to reblock/draftstop pen-
etrants than mineral wool, glass ber and similar, non-adherent materials.
For technical support relating to 3M Fire Protection Products and Systems, call: 1-800-328-1687
For more information on 3M Fire Protection Products, visit: www.3m.com/firestop
Easy-to-install fireblock
and draftstop for Type V
Residential and other
non-rated construction.
3. Specifications
3M
™
Fire Block Foam FB-Foam is a re-
blocking, smoke and draft sealant that shall be a one-part, ready-to-use, expanding
polyurethane foam for use in Type V Residential and other non-rated construction.
The reblock foam shall be tested to and passed the criteria of ASTM E 84 (Modi-
ed). 3M
™
Fire Block Foam FB-Foam shall comply with the requirements of the
International Building Code (IBC), International Residential Code (IRC), Interna-
tional Fire Code (IFC), International Mechanical Code (IMC), International Fuel
Gas Code (IFGC) and NPFA 5000.
Meets the intent of LEED® VOC regulations—helps reduce the quantity of indoor air contaminants
that may be odorous, irritating and harmful to the comfort and well-being of the installers and
occupants. <250 g/L VOC contents (less H
2
O and exempt solvents).
*Not to be used as a restop in commercial construction.
CAULKINGS AND SEALANTS
SURFACE BURNING CHARACTERISTICS
APPLIED TO INORGANIC
REINFORCED CEMENT BOARD
FLAME SPREAD 25
SMOKE DEVELOPMENT 50
39P2
ICC-ES ESR-3165
Product Color: Orange