Thomas & Betts, DX-5S, Blackburn Duct Seal 5 LB Slab

Condition: New

Product Overview: The DX-5S Duct Seal is a UL-classified sealing compound designed to neatly and effectively seal openings around EMT or rigid conduit raceways. The 5-pound slab is ideal for blocking air, dust, and water infiltration. It's not meant for electrical insulation but provides a durable, weather-resistant seal and can be painted immediately after installation. Manufactured by Thomas & Betts (now under ABB’s Installation Products division) and branded Blackburn, it blends utility and convenience in one compact form.

Features

• Sealing Functionality: Seals against air, dust, and moisture around conduit; not rated as a firestop or for electrical insulation

• Workability & Finish: Paintable immediately after application; features a non-odorous gray compound.

• Temperature Performance:

  • Workable Range: +20 °F to 212 °F

  • Service Range: −40 °F to 250 °

• Composition & Safety: Made from calcium carbonate, attapulgite, and talc; contains no asbestos