66525 - Rectorseal - 30OZ CART MC1200 WHT CAULK GRD - 12PK

The RectorSeal 66525 - Metacaulk 1200 White Caulk Grade (30 oz Cartridge, 12PK) is a high-performance, single-component firestop sealant designed for construction joints and dynamic movement areas.

🔥 Product Overview:

• SKU: 66525
• Size: 30 oz per cartridge
• Pack Size: 12 cartridges per case
• Color: White
• Form: Caulk grade paste (non-sag, easy to apply with caulk gun or trowel)

🧪 Features:

• Fire-Rated:
  • Up to 4 hours per ASTM E1966/UL 2079 (building joint systems)
  • Up to 3 hours per ASTM E814/UL1479 (penetration systems) 
• 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
• Freeze-Thaw Stable
• No Mixing Required: Ready-to-use straight from the cartridge