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Rectorseal 30 Oz. Metacaulk 150+ Firestop Sealant, Red

Rectorseal 66383
SKU RSL-66383
RectorSeal's red 30 oz. Metacaulk 150+ firestop sealant is a general purpose fire/acoustic sealant & smoke seal for construction joints & through-penetrations. Cure time is 3 to 4 weeks. Explore more RectorSeal firestop products at HomElectrical today!
Rectorseal 30 Oz. Metacaulk 150+ Firestop Sealant, Red

Image may not depict product actual color, inclusions or accessories

RectorSeal's red 30 oz. Metacaulk 150+ firestop sealant is a general purpose fire/acoustic sealant & smoke seal for construction joints & through-penetrations. Cure time is 3 to 4 weeks. Explore more RectorSeal firestop products at HomElectrical today!
  • 30 Ounce; Red.
  • Water-based and non-sag.
  • VOC compliant.
  • Protected in wet and dry stages against mold growth with a combination of biocides.
  • Flexible set and Excellent freeze-thaw.
  • Cures to an elastomeric seal suitable where dynamic movement is expected.
  • For interior use and paintable.
  • Safe and easy to use for most applications; No dilution or mixing is required.
  • Easy to apply and retrofit.
  • Can be applied with conventional caulking gun, bulk loading gun, troweled from pail, or pumped directly from pail.
  • STC rating 51.
  • Minimum 3-year shelf life and Intumescent.
  • Certifications: UL Certified, FBC, FM Approved, Clean Air Gold.

Rectorseal 66383 Description

  • 30 Ounce; Red.
  • Water-based and non-sag.
  • VOC compliant.
  • Protected in wet and dry stages against mold growth with a combination of biocides.
  • Flexible set and Excellent freeze-thaw.
  • Cures to an elastomeric seal suitable where dynamic movement is expected.
  • For interior use and paintable.
  • Safe and easy to use for most applications; No dilution or mixing is required.
  • Easy to apply and retrofit.
  • Can be applied with conventional caulking gun, bulk loading gun, troweled from pail, or pumped directly from pail.
  • STC rating 51.
  • Minimum 3-year shelf life and Intumescent.
  • Certifications: UL Certified, FBC, FM Approved, Clean Air Gold.
Get FREE shipping on eligible order of $99+
Free Shipping Eligible
$44.14Each
Sold by the Case of 12 for only $529.68

Ships between 06/03/2026 - 06/09/2026

Product Specifications

Manufacturer Description

30 OZ METACAULK MC150+

Resources & Download

A PDF viewer is required to view this product's information. Download Adobe Acrobat Viewer

Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.
RectorSeal's red 30 oz. Metacaulk 150+ firestop sealant is a general purpose fire/acoustic sealant & smoke seal for construction joints & through-penetrations. Cure time is 3 to 4 weeks. Explore more RectorSeal firestop products at HomElectrical today!
Rectorseal 30 Oz. Metacaulk 150+ Firestop Sealant, Red
Get FREE shipping on eligible order of $99+
Free Shipping Eligible
$44.14Each
Sold by the Case of 12 for only $529.68

Ships between 06/03/2026 - 06/09/2026

Rectorseal 66383 Description

  • 30 Ounce; Red.
  • Water-based and non-sag.
  • VOC compliant.
  • Protected in wet and dry stages against mold growth with a combination of biocides.
  • Flexible set and Excellent freeze-thaw.
  • Cures to an elastomeric seal suitable where dynamic movement is expected.
  • For interior use and paintable.
  • Safe and easy to use for most applications; No dilution or mixing is required.
  • Easy to apply and retrofit.
  • Can be applied with conventional caulking gun, bulk loading gun, troweled from pail, or pumped directly from pail.
  • STC rating 51.
  • Minimum 3-year shelf life and Intumescent.
  • Certifications: UL Certified, FBC, FM Approved, Clean Air Gold.

Manufacturer Description

30 OZ METACAULK MC150+

Resources & Download

A PDF viewer is required to view this product's information. Download Adobe Acrobat Viewer

Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.

Product Questions & Answers

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