Metacaulk 1000 is a 1-component, general fire-rated sealant/smoke seal for construction joints and through-penetrations. Cures to elastomeric seal suited to dynamic motion. Stops flames/smoke/hot gas/water moving through joints and through penetrations.

• Protected in wet and dry stages against mold growth with a combination of biocides
• Non-sag caulking grade sealant that is easy to apply and retrofit
• Water based and flexible set with a minimum 3-year shelf life
• Excellent freeze-thaw and for interior use paintable
• Safe and easy to use
• No dilution or mixing is required for use
• Highly intumescent and VOC compliant
• Systems rated for 1, 2, 3 and 4 hours in accordance with ASTM E 814, UL 1479 UL 2079 and ULC-S115-95 standards; STC rating 62