66383 - Rectorseal - METACAULK MC150+ 30 OZ - 12PK

The RectorSeal 66383 - Metacaulk 150+ Red (30 oz Cartridge, 12PK) is a general-purpose, intumescent firestop sealant designed for construction joints and through penetrations.

🔥 Product Overview:

• SKU: 66383
• Size: 30 oz per cartridge
• Pack Size: 12 cartridges per case
• Color: Red
• Form: Water-based, non-sag caulking grade paste

🧪 Features:

• Fire-Rated: Certified for up to 4 hours per ASTM E814 (UL1479) and ASTM E1966 (UL 2079) 
• Flexible & Elastomeric: Cures to a seal that accommodates dynamic movement
• VOC Compliant: Less than 10 g/L
• STC Rating: 65 (acoustical sealant) 
• Mold Resistant: Protected in both wet and dry stages with biocides
• Temperature Range: 40°F to 120°F
• Application: Can be applied with a conventional caulking gun, bulk loading gun, or trowel