latex mattress - dunlop vs lalalay
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latex mattress - dunlop vs lalalay. what is the difference between these 2 types of latex foams? Thanks |
Re: latex mattress - dunlop vs lalalay
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sage66 is a TROLL. Go through his posts and you will know what I say is true. I don't know think kimberly is a troll. But these questions are not only for me but help everyone who has a similar SPECIFIC question. They are very specific questions. May be not this one but almost all the rest are. If you you do not want to answer and do not like my questions do not reply and unnecessarily increase your blood pressure. Best wishes. This message was modified Feb 10, 2010 by lowbacpain
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Re: latex mattress - dunlop vs lalalay
| Maybe the administrators can make a sticky thread for newbie questions at the top or create an ignore feature. |
Re: latex mattress - dunlop vs lalalay
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To lowbacpain, I don't want to crap on your thread. Perhaps someone can even copy and past one of my post's regarding this very subject. However, most of the topics you have created are IMO incredibly broad sweeping questions that most people cannot answer, in particular, what mattress is good for YOUR lower back pain. Let's just try to keep the front page looking as clean as we can, it's sometimes better to ask these questions in an existing thread rather than just making a new one. |
Re: latex mattress - dunlop vs lalalay
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KimberlyH wrote: For once, I find myself agreeing with Sager. Every day you post questions, sometimes asking the same question multiple times. Do some basic internet research. Let's see. Go to www.yahoo.com or www.google.com and type in the search bar "dunlop vs. talalay." Then you will get a whole string of websites that are all too happy to discuss what the difference is between the two. Most of the people on this forum don't really have the time or inclination to hand-feed information to people who can't make the effort to do their own research. AMEN!! |
Re: latex mattress - dunlop vs lalalay
| Eagle, be careful! You might be dumped in the TROLL cave with Sager and me! |
Re: latex mattress - dunlop vs lalalay
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Just don't reply. It is that simple. This is a free world. I don't know what part you live but I live in the great state of Texas. We have something called free speech here and we take our rights seriously. trying to control what others post is a bad habit. Unless it is offensive to you or something like that. I don't care what any of you posts. I don't object. I learn from each and every posts. And I think that is what the purpose of this forum is. Best wishes. |
Re: latex mattress - dunlop vs lalalay
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this forum is privately owned and belongs to a place that intellectually has no such thing as a bill of rights or freedoms. Our right to complain about certain posts are just as warranted as someone complaining about not liking a bed. But anyway here you go: "Thing is, there are many variables with latex much more so than Dunlop or Talalay process. Especially since the words Talalay or Dunlop does not specify which material the latex is even made of. A list of the main variables in latex quality (not density): 1. What the latex is made of. If the latex is all natural or even a partial blend the following will also play a role: 1. How much vulcanization and stabilization chemicals are used: 2. How long the rubber is stored before being processed into a foam core. 3. Where the latex is grown (is it sourced from North Africa, or SE Asia, in particular your best latex comes from malaysia, but the rest of the good stuff from SE Asia) 4. What specific subspecies of tree the rubber is sourced from. 5. and finally the process will obviously matter, below I will explain why I list it so low on the hierarchy. There are basically two substances that are considered latex. Any plant milk which can be vulcanized into rubber, primarily the rubber tree would be the plant in question 99% of the time and 100% of the time with regards for latex in mattress use. There is of course also synthetic rubber, made from petrochemicals it is called styrene butadiene. You can make Dunlop or Talalay process rubber out of either 100% natural sourced latex or 100% petrochemicals. With the same ILD rating, the performance of 100% synthetic vs 100% natural dunlop latex would be dramatically different. You can also of course (and most commonly in North America) make latex using a blend of natural and synthetic rubber, typically 30% natural is the standard blend that latex international uses now-a-days and is the type of mixture you will see used in just about every mainstream companies beds. They of course talk about the virtues of Talalay latex very commonly, which is the process they use for blended rubber. Interestingly enough even though you can make dunlop or talalay latex in any mixture of synthetic and natural rubber you can dream of you never see certain things too often. primarily, you will almost NEVER see or find a manufacturer that uses Dunlop process for blended latex (synthetic and natural). Most dunlop latex on the market will either be 100% synthetic (some cheaper Ikea mattresses) or 100% natural rubber (if you look at high end organic mattresses that use latex cores, usually dunlop is used all the way through or atleast the core). Talalay process you will usually see made in synthetic blends, although sometimes 100% synthetic (like the stuff Sealy makes for themselves) or 100% naturally sourced Talalay, although more rare, latex international makes some like this but its not very common because it is not typically as pure of an end product as 100% natural dunlop rubber so you don't see too much of this being used in a lot of the most expensive beds around. Realistically most Dunlop latex is 100% natural and most talalay latex available is a blend, this is the main reason why you would typically be right in assuming dunlop will be denser and usually is. Natural rubber is much heavier than styrene butadiene. Of course don't take my last sentence to describe what dunlop or talalay IS, always make sure you know what the breakdown of materials is. Chances are if you laid on a piece of dunlop latex that felt really dead it was either 100% synthetic or just an incredibly high ILD natural content. Anyway I am gonna tell you WHY Talalay is primarily used. natural and synthetic latex have inherently different densities, when you mix the two of them together they cannot mix evenly, not to mention that vulcanizing agents will also have different densities. Since most talalay latex here is made by latex international I will use them as an example. Especially since the product is made in the US, but the rubber comes from North Africa. When a rubber tree is damaged in the wild the milk of the tree would come to the surface area and form a giant rubber knot to fight off infection, this rubber will normally solidify within a matter of hours with exposure to air. To prevent this from happening ammonia is added to the natural latex to prevent it from curing. I personally am not privy to the exact details on how long the rubber sits around before being processed but since they send it by boat I think I am right to assume atleast a couple of weeks would go by if not longer. Because the latex sits around for this long the appropriate amount of ammonia must be added, the more ammonia added the more vulcanization agents will need to be added to cure the end product. So as time goes on you will always have a slightly less pure end product. Once you have all these ingredients in a blend it is basically out of complete necessity that they must use the talalay process or there would be huge inconsistencies in the product. On the flip side if one was using 100% synthetic or natural latex there really isn't much of a mixture at all in the first place and therefore no real need to even use the talalay process. especially if the latex is processed close to the plantations as it will not be sitting around as long and very little extra chemicals will have to be added. This is one of my biggest gripes with the industry constantly telling people Talalay is more consistent, obviously it is more consistent blend when you are using a blended latex, however it is actually the blending of latex in the first place from which almost all the inconsistencies are born from. As far as what is bouncier, natural rubber is more elastic than synthetic rubber. This is exactly why condoms and medical gloves still use natural latex because for safety reasons these things need to be able to stretch without breaking, synthetic rubber is far more brittle and actually more prone to cells being destroyed from compression and stretching due to a lack of elasticity. This is also why density doesn't always mean a product is 'better' but the extra weight of natural latex is from proteins which make it more elastic, which is typically very desirable. And would also mean the cores can conform more articulately with the shape of the human body. I could actually go into much greater detail but I am afraid I have a short story here no one will read anyway lol. in closing though, you can compare Talalay to Dunlop in terms of ILD ratings quite fairly, however try to make sure you are comparing the same source material. It wouldn't be fair to compare a synthetic blend talalay to an all natural dunlop, I would say this also works vice versa but as I mentioned no sane manufacturer would make a blended dunlop. " Copy' pasta' from an older thread. In short, when you are looking for a good quality latex mattress you should be more focused on the content of the latex instead of the process, as well as the presence of other upholstery layers like PU foam. |
Re: latex mattress - dunlop vs lalalay
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lowbacpain wrote: Just don't reply. It is that simple. This is a free world. I don't know what part you live but I live in the great state of Texas. We have something called free speech here and we take our rights seriously. trying to control what others post is a bad habit. Unless it is offensive to you or something like that. I don't care what any of you posts. I don't object. I learn from each and every posts. And I think that is what the purpose of this forum is. Best wishes. Oh dear. I was going to respond to one of your other posts before I saw this, but I'm afraid I fit your definition of troll too. Free speech is not a right on a privately held forum, but respect for others is just good manners. If you prefer that I not reply to your posts I will refrain from doing so in the future. If you want to ask lots of vague and unfocused questions that's fine with me. But please do not claim that your repetitive and undirected questions benefit me and everyone else - they do not. Linda |
Re: latex mattress - dunlop vs lalalay
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lnkholder wrote: Oh dear. I was going to respond to one of your other posts before I saw this, but I'm afraid I fit your definition of troll too. Free speech is not a right on a privately held forum, but respect for others is just good manners. If you prefer that I not reply to your posts I will refrain from doing so in the future. If you want to ask lots of vague and unfocused questions that's fine with me. But please do not claim that your repetitive and undirected questions benefit me and everyone else - they do not. Linda Thanks for not replying. I am grateful to you. My questions are not vague and unfocused they are specific and informative. I never took your name and I never claimed I did. Thanks again for not replying. |
Re: latex mattress - dunlop vs lalalay
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Really there is no way to know other than to try each one. In general, Dunlop process is more dense and dead feeling and Talalay is more alive and spring-y feeling, in my opinion. But as Budgy has pointed out - in another thread - this is a generalization and not always the case. So the bottom line is you have to just make your best guess - based on the abundant info throughout this forum - and then try one or both and see if you like them. My take on it is that Dunlop might be better for the base layer(s) and Talalay is probably better for the middle and top layers. |