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Rectorseal 66640 - Metacaulk 1000 Intumescent Firestop Sealant

Item: 66640
MFR: 66640
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Metacaulk® 1000 is a water-based, flexible, highly intumescent sealant designed for use on metal, insulated, fiberglass and plastic pipes. It can also be used for top of the wall construction joints, as well as power and telephone cables. Sound Transmission Class (STC) rating 62, Tested in a UL 411 wall assembly/section to ASTM E90. Metacaulk® 1000 will prevent the spread of flames, smoke, hot gases and water through joint openings and through-penetrations. No dilution or mixing is required for use. No special skills are necessary for installation. Metacaulk® 1000 has passed ASTM E 1966/UL 2079 for top of the wall applications with or with out backing and as little as 1/4 inch depth of caulk. The test assembly was also subjected to 500 cycles on a specially built machine that successfully demonstrated the product's durability and movement characteristics.


NameRectorseal 66640 - Metacaulk 1000 Intumescent Firestop Sealant
Gemaire Item Number66640
Manufacturer Product Number66640
SKU - PIM Number1374511248198
ERP Number276752
Unit of MeasureEA
Weight1.0 Pounds (Lb)
Length2.0 Inches (In)
Width2.0 Inches (In)
Height11.5 Inches (In)
Country of OriginUSA
TierMetacaulk® 1000
Service Temperature40°F to 120°F (4.4°C to 48.8°C)
Application Temperature40°F to 120°F (4.4°C to 48.8°C)
Coverage18 cu. in.
Dry Time30 min to 3-4 weeks.
Flash PointNone
Shelf Life3 YRS
Solids Content>70%
Storage Temperature35°F to 120°F (1.6°C to 48.8°C)
UV ResistantNo
Tensile StrengthNone
ApplicationWill prevent the spread of fire through joint openings and through penetrations. No dilution or mixing required. Can be used in areas with some movement. Use in fire-rated gypsum wallboard partitions, concrete walls or floors, wood floors and concrete or corrugated steel deck floor/ceiling assemblies.
ApprovalsNone Provided by Manufacturer
BaseWater Based
CompositionWater Based Intumescent
Fire Rating4 Hr.
For Use WithMetal, insulated pipes, fiberglass and plastic pipe, wall construction joints, power, telephone and datacom cables
FunctionsIntumescent, water-based firestop sealant
RatingsVOC compliant, STC rating 62, Meets ASTM E 814, UL 1479 & UL 2079 standards
Size10.3 Ounce
StandardsUL, Intertek, FBC, FM
Temperature Range35°F to 120°F (1.6°C to 48.8°C)
TypeIntumescent, water-based firestop sealant
Volume10.3 Oz. cartridge
UL ListedYes
UL RecognizedYes
GEM - Case Quantity


Parts List