ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by gfretwell - 03/28/24 12:43 AM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
1 members (CoolWill), 250 guests, and 13 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#29776 09/24/03 04:40 PM
Joined: Sep 2003
Posts: 114
S
sparked Offline OP
Member
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?

#29777 09/24/03 05:06 PM
Joined: Aug 2002
Posts: 1,691
S
Member
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
A
Anonymous
Unregistered
I think he means Bakelite. I don't think they are still made. They were early attempts at plastic.
Brian

#29779 09/24/03 08:48 PM
Joined: Oct 2000
Posts: 4,116
Likes: 4
Member
I was thinking they were some type of Fiberglass.
Does anybody know for sure?

Bill


Bill
#29780 09/24/03 09:15 PM
Joined: Apr 2002
Posts: 914
E
Member
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
Joined: Sep 2003
Posts: 114
S
sparked Offline OP
Member
Electric Eagle, your description sounds right, thanks. Does anybody still use them?

#29782 09/24/03 10:25 PM
Joined: Apr 2002
Posts: 914
E
Member
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
Joined: Apr 2002
Posts: 2,527
B
Moderator
See: http://tnbelectricalworld.tnb.com/contractor/docs/union.pdf

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
Joined: Jan 2002
Posts: 1,457
E
Member
J-U-N-K!


Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5