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W designated latex? 11 Mar 2014 01:19 #1

Sorry if this is a dumb question, I know latex has different designations. Usually when it's natural latex, the layers are marked depending on firmness as N1, N2.. What is a W designation?

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W designated latex? 11 Mar 2014 01:34 #2

Hi brass,

I'm not sure which latex manufacturer you are referring to (each manufacturer can have their own way for designating firmness) but if it's Radium you mean then their W designations are the firmness ratings and ranges for their blended Talalay latex.

Note the "W" ratings have now been replaced with "S" ratings which you can see here .

Phoenix
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Last edit: by phoenix.

W designated latex? 11 Mar 2014 18:29 #3

Phoenix, thanks. I didn't know there were other letters used. Usually it just says soft, med etc with an ild range and I've seen a lot of places give the N number ahead of it if it's natural to differentiate it from synthetic or blended. The listing I saw using the W was for talalux. (Had to look for it, I've got like 30 tabs open). Talalux is Latexco, are they part of Radium? I thought Radium's talalay was Vita. Wish some of these places would pick a name and stay with it, this stuff is confusing enough. :P I know it's marketing and product differences, trying to keep track of it is something else though. Still not sure all the differences, I know talalux is latexco's blended talalay, and durolux is their blended dunlop. Puralux and Naturalux descriptions almost sound the same, so I'm guessing they're designations for their natural line of talalay and dunlop respectively.

To add to the confusion, I came across a place called Latex Sleep Therapy that says they're selling latexco blended talalay (talalux?), but instead of labeling their ild's with 'W' numbers, they're using designations of 55k, 70k, 80k and 90k. Does that sound right? I know european markings for dunlop densities use a D like 65D (kilograms per meter cubed instead of pounds per foot cubed). They give a conversion stating Soft (55K) 15-19 ILD; Medium (70K) 22-27 ILD; Medium-Firm (80K) 28-30 ILD; Firm (90K) 34-40 ILD which the ild ranges sound about right for what they call 'soft', 'medium' etc.

So now I've come across 2 different sources for what's supposed to be talalux, one says medium (25 ifd) is w6 and another that says medium is 70k (22-27 ifd) for the same product. And yet the W appears to be associated with Radium, an entirely different company (i think). Confusing. I just didn't want to end up getting something completely different than what I thought was being sold and realizing after the fact that it was my fault because it clearly stated using a xxK or Wx number and should have known better.

Sleep on Latex sells variations with names like Pure Plush that they've trademarked (I know this is dunlop, not talalay so a different product) but as far as I can tell it's just what they're calling blended dunlop (instead of 'durolux' or another name).

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W designated latex? 11 Mar 2014 19:29 #4

Hi brass,

Usually it just says soft, med etc with an ild range and I've seen a lot of places give the N number ahead of it if it's natural to differentiate it from synthetic or blended. The listing I saw using the W was for talalux. (Had to look for it, I've got like 30 tabs open). Talalux is Latexco, are they part of Radium? I thought Radium's talalay was Vita.


Radium is part of the Vita Group that makes Vita Talalay. Latexco / Sleep Comp (now Latexco West) is an American distributor for Vita Talalay and markets it under their own Talalux brand name but doesn't make it.

Puralux and Naturalux descriptions almost sound the same, so I'm guessing they're designations for their natural line of talalay and dunlop respectively.


Puralux is their continuous pour Dunlop and it's also a natural/synthetic blend (usually about 20% natural and 80% synthetic) and Naturalux is their tradename for the 100% natural Dunlop they sell (usually Latex Green).

To add to the confusion, I came across a place called Latex Sleep Therapy that says they're selling latexco blended talalay (talalux?), but instead of labeling their ild's with 'W' numbers, they're using designations of 55k, 70k, 80k and 90k. Does that sound right?


No ... they sound more like 100% natural Dunlop designations. Latexco is also a supplier for Latex Green (their 100% natural Dunlop) and you can see the Latex Green density and ILD numbers here which is more likely what they are selling.

The easiest way to differentiate latex is based on the type and blend (as well as the ILD or density depending on how the firmness is rated).

It can certainly be confusing :)

Phoenix
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Last edit: by phoenix.

W designated latex? 11 Mar 2014 19:43 #5

The listing I saw from Latex Sleep Therapy just says "pure talalay latex, made in the u.s.a." and this was my question and their answer:
Q: This says pure talalay, is it blended? Who makes this latex, latexco, latex international? is it produced in the u.s. or imported and cut here? thanks
A:This latex topper is made by LatexCo and manufactured in the USA. Talalay Latex, according to industry experts, is always a blend of natural and synthetic latex -- despite claims by some that their product is 100% Natural. Truly Natural Latex is manufactured where the rubber trees actually grow, and that is not in the USA

This was the place listing it as 55k, 70k for firmness with the corresponding ild ranges associated with those xxK designations. If it's dunlop, not talalay, might explain why a 3" full/dbl layer is priced around $235 for a medium (70k). Most everywhere else that sells talalux is closer to $300-350 for 3". Maybe not the deal I thought it was.

Good to know that talalux is Radium. The nicer sample I got from Savvy was Radium talalay I believe, although what they sent was natural not blended I'm pretty sure. Either way, nice stuff.

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W designated latex? 11 Mar 2014 19:47 #6

Hi brass,

Q: This says pure talalay, is it blended? Who makes this latex, latexco, latex international? is it produced in the u.s. or imported and cut here? thanks
A:This latex topper is made by LatexCo and manufactured in the USA. Talalay Latex, according to industry experts, is always a blend of natural and synthetic latex -- despite claims by some that their product is 100% Natural. Truly Natural Latex is manufactured where the rubber trees actually grow, and that is not in the USA


I think they are sadly/badly misinformed.

If the topper is actually made in the US then the only product that Latexco pours in the US is the Puralux (which is neither talalay or 100% natural Dunlop).

Phoenix
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W designated latex? 11 Mar 2014 20:17 #7

What then is Purolux? If not talalay nor natural dunlop. Is it in the dunlop family? Latexco's site doesn't give much clue, just says it's 100% latex (doesn't claim to be talalay) available with or without perforations from quilting rolls up to 3" - they (Latexco) say without seams, which sounds like dunlop since talalay is typically seamed together due to smaller molds. Durolux as I understand is a 50/50 dunlop blend. Naturalux is natural latex (non blended - dunlop?) so where does Puralux fall into the spectrum? If it's not natural (blended), then how does it differ from Durolux? Just a higher natural blend, like 60 natural/40 synthetic vs the lesser expensive 50/50 durolux?

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W designated latex? 11 Mar 2014 20:23 #8

Hi Brass,

It's their continuous pour Dunlop that is made in a thickness up to 4" (usually less) and can have holes punched in it after it's poured or left as a layer with no holes. As I mentioned in my earlier reply ... it's usually a 20% natural and 80% synthetic blend.

Phoenix
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W designated latex? 12 Mar 2014 09:03 #9

Phoenix, thanks again as always. Sorry about that, you actually did answer that before I even asked. Apparently my eyes jumped over it, maybe when I was scrolling the screen.

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W designated latex? 12 Mar 2014 12:43 #10

Hi brass,

No problem ... I do the same thing all the time (especially when my eyes start getting blurry from hours of reading) :)

On an "average" day I usually have more than 200 tabs open!

Phoenix
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