ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

ECN Shout Chat
Top Posters(30 Days)
Admin 17
Recent Posts
Old decora style outlets
by Admin. 03/25/17 11:40 AM
ESA Arc flash course
by TheShockDoctors. 03/24/17 10:15 AM
fuse rejectors
by HotLine1. 03/24/17 07:53 AM
Another Forum Update
by Admin. 03/22/17 03:04 PM
Dining room plugs
by watersparkfalls. 03/21/17 10:31 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,474 Are you busy
166,181 Re: Forum
160,635 Need opinion
Who's Online Now
1 registered members (gfretwell), 52 guests, and 14 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#29776 - 09/24/03 04:40 PM Masonite boxes  
sparked  Offline
Joined: Sep 2003
Posts: 114
Does anybody know if device boxes of masonite are still made? They were used here for a while, mainly as old work boxes, but I've found the holes will strip if you tighten them too far. There seem to be better options nowadays, like plastic boxes with those wings that pop up and tighten as you tighten a screw. If they still do exist, do you use them?

Work Gear for Electricians and the Trades

#29777 - 09/24/03 05:06 PM Re: Masonite boxes  
SvenNYC  Offline
Joined: Aug 2002
Posts: 1,691
New York City
Isn't Masonite used normally to make cabinet backs for speakers and also the material for clipboards?

Doesn't that stuff catch fire?

It's essentially a very very heavy cardboard, right?

#29778 - 09/24/03 08:39 PM Re: Masonite boxes  

I think he means Bakelite. I don't think they are still made. They were early attempts at plastic.

#29779 - 09/24/03 08:48 PM Re: Masonite boxes  
Bill Addiss  Offline
Joined: Oct 2000
Posts: 3,875
I was thinking they were some type of Fiberglass.
Does anybody know for sure?


#29780 - 09/24/03 09:15 PM Re: Masonite boxes  
Electric Eagle  Offline
Joined: Apr 2002
Posts: 914
Alpharetta, GA
Are you talking about those brownish-green boxes. If so they, they like a bakelite plastic with fiber reinforcing. and yes, they still make them.

#29781 - 09/24/03 09:26 PM Re: Masonite boxes  
sparked  Offline
Joined: Sep 2003
Posts: 114
Electric Eagle, your description sounds right, thanks. Does anybody still use them?

#29782 - 09/24/03 10:25 PM Re: Masonite boxes  
Electric Eagle  Offline
Joined: Apr 2002
Posts: 914
Alpharetta, GA
The round pop-ins we use are like that, but all our other boxes are gray plastic. I went to my truck and found one, it's made by T&B and I think the model number is 3080.

#29783 - 09/24/03 10:54 PM Re: Masonite boxes  
Bjarney  Offline
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...

They are "Union-brand reinforced-phenolic wall boxes"
as opposed to thermoplastic boxes.

Originally, the manufacturer called themselves Union Insulating Co.

I agree that “masonite” is a composite wood-fiber material, and likely flammable as most other lumber. It’s probably not intended for electrical enclosures.

#29784 - 09/26/03 05:57 AM Re: Masonite boxes  
Electricmanscott  Offline
Joined: Jan 2002
Posts: 1,457
Holden, MA USA

Member Spotlight
Blue Collar Country
Posts: 5,316
Joined: January 2005
Show All Member Profiles 

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.021s Queries: 14 (0.004s) Memory: 0.7962 MB (Peak: 0.9659 MB) Zlib enabled. Server Time: 2017-03-26 05:29:38 UTC