Skip to main content

Firestop Pillow

MasterFormat 07 84 00 Firestopping; 07 84 13 Penetration Firestopping; 22 00 00 Plumbing; 23 00 00 Heating, Ventilating, and Air Conditioning (HVAC); 26 00 00 Electrical; 27 05 36 Cable Trays for Communications Systems

This information reflects our best understanding of product composition in 2022.

Firestop pillows or cushions are generally comprised of an insulating, heat-resistant core surrounded by an intumescent material and sealed in an exterior bag. There is variability across manufacturers in the materials used for each layer. This CP...

More about Firestop Pillow

Firestop pillows or cushions are generally comprised of an insulating, heat-resistant core surrounded by an intumescent material and sealed in an exterior bag. There is variability across manufacturers in the materials used for each layer. This CP covers firestop pillows with an insulating core made of mineral wool surrounded by an intumescent coating and encapsulated in a polyethylene bag. Another common type of firestop pillow not covered by this CP contains loose organic filler and intumescent material in a glass cloth bag, which may be coated with PVC or other water resistant coating. These pillows are compressed and stacked to fill through-penetrations in need of firestopping. Most do not require adhesives to affix the pillows in the penetration, allowing pillows to be moved and reused. This is particularly useful in areas that require frequent access or retrofitting (e.g. cable trays, electrical conduits, etc.). Upon exposure to fire, the intumescent material expands to seal the through-penetration and stop the spread of smoke and fire. This Common Product describes firestop pillows containing an intumescent coating based on expandable graphite, though various chemistries may be used to provide intumescence. See the All Contents tab for additional chemicals that may be used in these intumescent coatings.

Name % Weight Whole Function GREENSCREEN® Sources
Fiberglass
65997-17-3
55.48% Flame Retardant Subscribe to view
Urea, polymer with formaldehyde and phenol
25104-55-6
2.77% Binder Subscribe to view
Sulfuric acid, compd. with graphite (1:?)
12777-87-6
18.50% Intumescent Subscribe to view
Limestone
1317-65-3
9.25% Filler Subscribe to view
Polybutene
9003-29-6
5.55% Binder Subscribe to view
Alcohols, C8-22, ethoxylated
69013-19-0
0.14% Surfactant Subscribe to view
Polyethylene
9002-88-4
8.17% Water resistance Subscribe to view
FLUX-CALCINED DIATOMACEOUS EARTH
68855-54-9
0.09% Anti-adhesive agent Subscribe to view
Pigment
0.06% Pigment Subscribe to view
Irganox 1010
6683-19-8
<0.01% Antioxidant Subscribe to view
Tris(2,4-di-tert-butylphenyl) phosphite
31570-04-4
<0.01% Antioxidant Subscribe to view
Name % Weight Part % Weight Whole Function GREENSCREEN® Sources
Firestop Pillow Mineral Fiber Core
58.25% 58.25% Flame Retardant Subscribe to view
Fiberglass
65997-17-3
(Nested within Firestop Pillow Mineral Fiber Core)
95.24% 55.48% Flame Retardant Subscribe to view
Urea, polymer with formaldehyde and phenol
25104-55-6
(Nested within Firestop Pillow Mineral Fiber Core)
4.76% 2.77% Binder Subscribe to view
Firestop Pillow Intumescent
33.43% 33.43% Intumescent Subscribe to view
Sulfuric acid, compd. with graphite (1:?)
12777-87-6
(Nested within Firestop Pillow Intumescent)
55.33% 18.50% Intumescent Subscribe to view
Limestone
1317-65-3
(Nested within Firestop Pillow Intumescent)
27.66% 9.25% Filler Subscribe to view
Polybutene
9003-29-6
(Nested within Firestop Pillow Intumescent)
16.60% 5.55% Binder Subscribe to view
Alcohols, C8-22, ethoxylated
69013-19-0
(Nested within Firestop Pillow Intumescent)
0.41% 0.14% Surfactant Subscribe to view
Polyethylene Film
8.32% 8.32% Structure Component Subscribe to view
Polyethylene
9002-88-4
(Nested within Polyethylene Film)
98.23% 8.17% Water resistance Subscribe to view
FLUX-CALCINED DIATOMACEOUS EARTH
68855-54-9
(Nested within Polyethylene Film)
1.03% 0.09% Anti-adhesive agent Subscribe to view
Pigment
(Nested within Polyethylene Film)
0.67% 0.06% Pigment Subscribe to view
Irganox 1010
6683-19-8
(Nested within Polyethylene Film)
0.05% <0.01% Antioxidant Subscribe to view
Tris(2,4-di-tert-butylphenyl) phosphite
31570-04-4
(Nested within Polyethylene Film)
0.01% <0.01% Antioxidant Subscribe to view

Log in or create an account to view All Contents

Known or Potential Residuals

Known or Potential Residuals for Chemical
CASRN NAME GREENSCREEN® TYPE FREQUENCY % Weight Chemical % Weight Product SOURCE
Log in or create an account to view Known or Potential Residuals

Other Process Chemicals

Other Process Chemicals for Chemical
CASRN NAME GREENSCREEN® TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCES
Log in or create an account to view Other Process Chemistry

Habitable Resources (0)

Habitable Resources for Product
TYPE TITLE
There are no resources for this Common Product.

Sources

Sources for Common Product Data
Source Uploaded Document Linked Document
3M_FBPillows_Install
3M_FBPillows_PDS
3M_FBPillows_SDS
Additives
Antiblock
Barrier-Bac
Calsol8240_SDS
Chroma
Everkem_FirestopPillows_SDS
Everkem_FirestopPillows_TDS
Fina
Florprufe
Griffolyn
Hilti_FirestopCushion_SDS
Hilti_FirestopCushion_TDS
KR20120054649A
Metacaulk_FirestopPillows_TDS
Nelson_PLW_SDS
Nelson_PLW_TDS
Perminator
PFP_FirestopPillow_SDS
PFP_FirestopPillow_TDS
Plastics Additives
SpecialChem_Antioxidants_Polyolefins
Stego
Stego HPD
STI_SSBPillow_HPD
STI_SSBPillow_PDS
Ullmann's 7th Ed
US11180666B2
US11273592B2
US5476891A
US5968669A
US6329465B1
US7018699B2
Vaporblock
Viper
Wingstay100_ChemBook
Wingstay29_SpecChem
Xtreme