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Flexible grey duct sealant in a 16 oz bag

NSI INDUSTRIES

NSI INDUSTRIES DS184 Duct Sealant 16 oz Bag

SKU CH-60HQ-2WEV1

Weather-resistant, non-toxic duct sealant in a 16 oz bag, UL Classified for use on glass, plastic and wood

  • Product typeCaulks, Sealants & Gasket Makers
  • UL Classified for code-compliant duct sealing
  • Weather-resistant formula holds up outdoors
  • Non-toxic compound safe for indoor use
  • Adheres to glass, plastic and wood surfaces
  • 16 oz bag covers typical residential runs

NSI Industries DS184 Duct Sealant 16 oz

This non-toxic caulking compound comes in a 16 oz bag for duct sealing applications. It carries a UL Classified rating and resists weather on glass, plastic and wood surfaces. The product is new and ships directly from the supplier.

Suitable for general duct sealing.

Installers needing a weather-resistant, non-toxic sealant for standard duct materials will find this compound fits the task. It is not intended for high-temperature exhaust systems or structural bonding jobs. Buyers requiring a specific fire-stop rating should verify the UL classification details.

16 oz bag determines coverage per job

The 16 oz container size sets the amount of material available for each sealing project. Plan the number of bags based on the total joint length and bead size required. No other packaging size is referenced for this model.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 96% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameNSI INDUSTRIES
Product typeCaulks, Sealants & Gasket Makers

Questions about this item

What surfaces can I apply the DS184 duct sealant to?

The sealant is rated for use on glass, plastic and wood surfaces.

Will this non-toxic sealant adhere properly to my existing ductwork?

Its weather-resistant, non-toxic formula is designed to bond to common duct materials including glass, plastic and wood.

How do I know the sealant has cured correctly?

Once applied it remains flexible and maintains a weather-resistant, non-toxic seal on the approved surfaces.

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