View Full Version : White ceramic type substance on breakers, what could it be?
mark petty
05-08-2014, 04:14 PM
Found this on 2006 Siemens panel, never seen it before. It looks like a course ceramic type material and kind of disintegrates (not bad) when rubbed with finger. It is uniformly on all breakers like it was possibly manufactured this way but not sure. Any thoughts? Thanks
John Kogel
05-08-2014, 07:10 PM
Isn't that just drywall dust?
What's it taste like? ;)
mark petty
05-08-2014, 07:33 PM
That's a good thought but no.
Lon Henderson
05-09-2014, 05:53 AM
This has been addressed in other threads, but the quick answer is that there is no problem. During the production of the breakers, a small hole is plugged with a dry caulk type material. Over time this material breaks down some into that white powder. It isn't a defect or problem.
Mbrooke
05-11-2014, 11:41 AM
Cement over the adjustment screw. Just happens to be white on these breakers. Ge uses a black substance Square D just tapes over them. All different but ok methods.
Bruce Low
05-12-2014, 04:22 AM
Mud Daubers
Lon Henderson
05-12-2014, 06:04 AM
Mud Daubers
Funny :o You must have very tidy mud daubers up north with very very white dirt.
Tom Rees
05-12-2014, 06:28 AM
As I remember this came up before and it is as Lon said. Manufacturer applied.
Powered by vBulletin® Version 4.2.0 Copyright © 2025 vBulletin Solutions, Inc. All rights reserved.