66387 - Rectorseal - 5 GAL PAIL MC1200 CAULK GRADE - 1PK

The RectorSeal 66387 - Metacaulk 1200 Caulk Grade Red (5 Gallon Pail) is a professional-grade, single-component firestop sealant designed for sealing construction joints and dynamic movement areas.

🔥 Product Overview:

• SKU: 66387
• Size: 5 gallons
• Form: Caulk grade paste (non-sag, easy to apply with caulk gun or trowel)
• Color: Red
• Application: Ideal for vertical and horizontal joints, including top-of-wall, curtain wall perimeter, expansion, control joints, and general gaps 

🧪 Features:

• Fire-Rated:
  • Up to 4 hours per ASTM E1966/UL 2079
  • Up to 3 hours per ASTM E814/UL1479
• Flexible & Elastomeric: Cures to a membrane that accommodates vibration and movement
• Mold Resistant: Protected in both wet and dry stages with biocides
• VOC Compliant & Paintable
• No Mixing Required: Ready-to-use straight from the pail
• Freeze-Thaw Stable