Duct Seal - Electrician Talk
Jul 4, 2013 · Duct Seal Compound Seals conduit openings against drafts, dust, moisture • Protects terminal boxes, pot heads and bushings from corrosive elements. • Deadens switch gear panel …
What do you use to seal penetrations? - Electrician Talk
May 4, 2019 · If duct seal isn't adequate, you can use a two part epoxy putty. Make sure you get one that bonds to metal, PVC, and concrete, and is UV stable. I usually just buy the marine stuff to be safe.
Question: Duct seal or silicon caulking for exterior...
May 5, 2025 · The inspector faulted us for using silicone caulking to seal around exterior service conduit wall penetration. Says going forward we have to use duct seal.
Interior box sealant? - Electrician Talk
Nov 29, 2023 · I'm not concerned with the drywall-to-box (exterior edge of the box), as the drywall finisher did a good job sealing with mud. The source of the draft is through the cable openings in the …
Sealing conduit from temperature difference - Electrician Talk
Mar 8, 2020 · Perma-Gum, duct seal putty works like a champ. Don’t use it inside a top fed panel that comes from outside. You run the risk of water filling above, inside the pipe during the winter. Plug …
Duct seal for 504.70 - Electrician Talk
Apr 24, 2011 · Duct seal is listed for sealing against dust and not gases or vapors as previously established. Therefore duct seal is a compliant sealing method in the instances of Art. 502.15 and …
Removing, cleaning, dissolving duct seal - Electrician Talk
Jul 19, 2019 · The idea is to put in Polywater FST-250 foam but there’s a problem. A previous electrician stuffed it full of a humongous amount of duct seal. Poking a wooden dowel in there doesn’t tell me …
Duct Seal | Page 2 | Electrician Talk
Feb 15, 2008 · In answer to hardworkingstiff: Yes, "duct seal/ electrical putty" can be used as a sealing compound in Class 2 and 3 areas. In these areas the purpose is to block the travel of dust (Class 2) …
weather proofing service entrance - Electrician Talk
Aug 23, 2013 · I'm working on a residential and was unsure if I have to use duct seal on both ends of the service entrance conduit or just on the entrance. The code says to seal it and provide drainage, can …
Do you seal wall penetrations - Electrician Talk
Sep 30, 2021 · I may use silicone but prefer duct seal. Occasionally I use a concrete patch or epoxy filler, especially if I have a lot to seal, that stuff is very durable. Going through a fire rated wall, you …