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Sealant - Fire Barrier - Grey - Cartridge / 1000 Series *WATER TIGHT

$13.48 /EA
Product #: 3MA1000N/S
Size: 20 oz; Surface: Vertical

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Ideal Uses
  • Helping to Control the Spread of Smoke and Flames during a Fire
  • Sealing Around Plumbing Penerations
  • Sealing Blank Openings
  • Sealing Dynamic and Static Construction Joints
  • Where a Water Tight, Fire Resistant Barrier is Needed

The 3M Fire Barrier Water Tight Sealant is built as a single component silicone that dries flexible, and is ready to use on vertical surfaces to help control the spread of fire, smoke, and noxious gases.


3M Fire Barrier Sealant has excellent adhesion to a wide variety of materials.  1000 NS is specifically developed for use on vertical surfaces and won't sag when drying. 1003 SL is specifically developed for use on horizontal surfaces and will self-level when drying.

This sealant acts as a fire, water, and sound barrier. It also helps to prevent smoke or other contaminated air from passing when used to seal around floor and wall penetrations.

Can be painted if a primer is used first.

Stays flexible when cured and can be repaired simply by adding more sealant.

This sealant meets the intent of LEED® green building program credits for VOC environmental regulations!


This sealant is halogen-free and contains low VOC's.

Get up to 3 hours of fire and fume protection when applied correctly.

Do NOT breathe in the vapors from this product. Wear gloves (polymer laminate material is recommended), respirator and eye/face protection. This product causes eye and skin irritation.

Clean Up and Storage

Dispose of contents and container through proper HAZMAT procedures.

This product has a shelf life of 18 months from date of packaging when stored between 4 °C and 32 °C and in sealed, original packaging.

Certifications, Standards, and Regulations

  • Meets the Intent of LEED® VOC Environmental Quality Requirements
  • Meets UL Water Leakage Test, W Rating — Class 1 requirements
  • Compatible for use with CPVC piping
  • UL Listed
  • ULC Listed
  • ASTM E 814 (UL 1479)
  • ASTM E 1966 (UL 2079)
  • CAN/ULC-S115
  • NEC (NFPA 70)
  • IBC
  • IFC
  • IRC
  • NBCC
  • NFPA 101
  • NFPA 5000

  • Fire Barrier & Protection Products: Sealants that are built to help achieve critical compartmentalization of a structure in order to reduce the severity of a fire and ensure safety to both life and property.
Vendor Part #:1000N/S
Performance Level‎:Up To 3 Hours of Fire Protection
Paintable:Yes; When Primed First
Physical State:Paste
Flash Point : Greater than 100°C

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Sealant - Fire Barrier - Grey - Cartridge / 1000 Series *WATER TIGHT

Sealant - Fire Barrier - Grey - Cartridge / 1000 Series *WATER TIGHT

Vertical or Horizontal Applications - Non-Slump or Self-Leveling Formulas - Single Component -  For providing water tightness, smoke blocking and up to 3 hours of fire protection