WF300 Intumescent Firestop Caulk

WF300 Intumescent Firestop Caulk

WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction. WF300 Caulk is tested for addressing penetrations through wood/frame construction such as wood stud walls and floor/ceiling assemblies. Under fire exposure, WF300 expands to up to four times its original volume.

Test Standards ASTM E84 (UL723)
ASTM E90
ASTM E119 (UL263)
ASTM E814 (UL1479)
ASTM G21
CAN/ULC-S115

Third Party Approvals

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Features

Installer friendly, easily applies with standard caulking gun
Suitable for combustible and non-combustible penetrants
Tested for up to 3 Hours of fire exposure when tested to ASTM E814/UL1479

Applications

Cables

Ductwork

Metallic Pipe

Plastic Pipe

Head-of-Wall

Properties

Permanent

Autobonding

Intumescent

Low VOC

Paintable

STC Rating

Water Based

Smoke Barrier

Specifications

Property	Value
Color	Red
Density/Weight per Gallon	10.2 lbs/gal (1.22 kg/L)
Flame Spread	0*
Smoke Development	20*
In Service Temperature	Less than 185°F (85°C)
Storage Temperature	40°F (4°C) to 95°F (35°C)
Application Temperature	35°F (2°C) to 100°F (38°C)
STC Rating (ASTM E90-04/ASTM C919)	61 (Relates to Specific Construction)
VOC Content	53 g/L**
Average Volume Shrinkage (ASTM C1241)	23.5%
Notes	Tested to ASTM E84 (UL723) at 14% surface coverage (modified test for sealants and caulks) *Per SCAQMD Rule 1168 (EPA Method 24)

Ordering Information

Catalog Number	UPC Number	Description	(UOM) Qty.	Case Qty.	Weight (Each)
WF305	730573097052	Wood Frame Intumescent Sealant 5 Gallon Pail	1	1	54.3 lbs
WF310	730573097106	Wood Frame Intumescent Sealant 10.1 Ounce Tube	1	12	0.95 lbs
WF320	730573097205	Wood Frame Intumescent Sealant 20 Ounce Sausage	1	12	1.7 lbs

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