Posts: 14,947
Threads: 0
Joined: May 2005
Location: Oklahoma
01-04-2017, 05:06 PM
(This post was last modified: 01-04-2017, 05:07 PM by MsNomer.)
Is this good or bad for flammability of a foam underlayment?
Also: "smoke content 20 SDR
And: "oxygen index 27 Ol
Carolyn
Trip Blog for Twelve Countries: [url=http://www.woodworkingtraveler.wordpress.com[/url]
"It's good to know, but it's better to understand." Auze Jackson
Posts: 1,998
Threads: 1
Joined: Aug 2016
As I understand the oxygen index is how much oxygen is needed to support continuous combustion. Normal atmosphere is about 20.9% , the 27 means it will need more oxygen (27 %) to support continuous combustion. So it will not continue to burn on its own in a normal atmosphere. I do not know about the smoke rating. Roly
Posts: 7,421
Threads: 1
Joined: Sep 2005
Also note that some products labeled as "self-extinguishing" are only so if used in the horizontal position. When used in walls they may not be self-extinguishing.
There are separate standard for walls and floors/ceilings.
No animals were injured or killed in the production of this post.
