BlazeStop® - 3BAPSTIWF3055GL - WF300 Intumescent Firestop Caulk

Item: SPIWF305
MFG: WF305
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Type WF300 Caulk is used to seal through penetrations and gaps in fire resistance rated wood frame construction such as floor/ceilings and walls or partitions. Most common penetrating items were successfully tested with WF300.

Type WF300 Caulk is a latex based, high solids firestop caulk. This material, when properly installed, effectively seals penetration openings in wood frame construction against the spread of fire, smoke and combustion by products. Type WF300 Caulk is a single stage intumescent. When exposed to elevated temperatures, WF300 expands rapidly to seal off voids left by the burning or melting of combustible materials.
Type WF300 Caulk is storage stable (when stored according to manufacturer’s recommendations) and will not separate or shrink when dried. WF300 adheres tenaciously to common construction materials such as lumber and gypsum board as well as typical penetrant materials.

• Water Based - Easy installation, cleanup and disposal
• Intumescent - Expands with heat
• Water-Resistant - Will not re-emulsify
• Paintable

California residents: see Proposition 65 Warning

Features and Specification

Weight 58.000000
Package Length 11.800000
Package Height 21.630000
Length 11.800000
Application BlazeStop® WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction.
Color Red
Brand BlazeStop®
Package Width 11.800000
Cubic Measurement 1.742900
Dimensional Weight 23.000000
Package Weight 58.000000
Prop 65 Yes
Width 11.800000
Size 5 Gallons
Height 21.630000


picture_as_pdf safety data sheet

picture_as_pdf specification sheet