Talk:Polyisocyanurate

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Polymers (inactive)

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Thermal conductivity units

I misread the W/(m.K) unit in the thermal conductivity as per millikelvin the first time I saw it today. How about to write it as W/(K.m) to prevent that possible confusion? I must confesss.... another source writes it just like here, so that might be common. On the other hand, I'd say it is an easy way to eliminate the possiblity of confusion. 87.214.94.24 (talk) 17:12, 12 July 2020 (UTC)[reply]

Environmental considerations

This is a general suggestion for all chemistry articles, but I was reviewing this one for a residential application and wanted to know the following:

Is this material naturally occurring? I'm guess not.

Is this material biodegradable?

Does the manufacture of this material involve toxic ingredients or byproducts?

No, no and yes. --Project Osprey (talk) 00:45, 23 November 2017 (UTC)[reply]

R-Value

Thank you for including the "R-Value" in this article. As a layperson in this field, I'm still left with two important questions, however:

1. What are "facers" in this context?

2. How does "R-value" relate to "U-value" (used in the UK building code -- here, a link would be more helpful to me)?

Thanks 77.96.64.84 22:55, 7 March 2007 (UTC)[reply]

Have put in an anchor [| On the R-value page]. I would have been happy to have seen that anchor and the section title that goes with it there. It is now.

--77.96.64.84 00:50, 8 March 2007 (UTC)[reply]

Life Expectancy of Polyisocyanurate?

I've been able to discover information about the meathod if measuring the life expectancy (LTTR) but I have not been able to locate an answer in Years OR product degredation over # of years (5% over 20, etc.) Seanmcd51 11:15, 9 April 2007 (UTC)Sean[reply]

ISO standard

Could someone please fill in the incomplete ISO standard that is referenced? That is why the incomplete tag is on the article.Truthanado (talk) 04:43, 22 November 2007 (UTC)[reply]

Fire protection properties

I was wondering if it is worth discussing the advantages of PIR over other insulation materials (specifically EPS - Expanded Polystyrene) in terms of fire properties. EPS is a highly combustible material and I know that many insurers are encouraging the use certain types of PIR (specifically FM Approved, Class 1 materials)as a flame retardant alternative from a loss prevention and life safety perspective. Bkerezsi (talk) 03:18, 31 January 2011 (UTC)[reply]

Logical flow lacking

Not sure what "these" means in "these describe the results of".

Also, the sentence "Despite this PIR insulation is generally regarded as being more fire resistant than PUR insulation" seems to appear out of nowhere; the previous text relates to toxicity. We could maybe move it up, so that the section starts "Although PIR insulation is....".

Following Grenfell this has become a contentious topic and it is therefore difficult to articulate, but at the moment there seems to be no overall "flow" in the flammability section. — Preceding unsigned comment added by Theeurocrat (talk • contribs) 10:34, 10 December 2018 (UTC)[reply]