PU Foam

[phoenix]

Hi LookingNow,

If this PU foam seems “safe for me” and I want to go denser at some point I may see if A1 has that. They do have a lot of choices and information on their website. PU foam doesn’t just get “firmer” or “harder” as it rises in density if I keep the ILD the same - the way latex seems to do - does it?

Density is the single most important factor that affects the durability of a polyfoam material but any density of polyfoam can be made in a wide range of firmness levels so lower density polyfoam can be just as firm or firmer than higher density polyfoam (and vice versa) … it just won’t maintain it’s firmness for as long.

I would also keep in mind that ILD is also only one of several variables that can affect how soft or firm a polyfoam layer or topper will feel to different people although density does have some connection to the compression modulus of polyfoam which is also a variable that can affect how soft or firm a foam layer feels. There is more about the different specs that can affect the softness/firmness of a foam material in post #4 here.

In addition to this the ILD of different materials aren’t always directly comparable to each other (see post #6 here) so using ILD by itself as a reliable indication of how of firm or soft a layer or topper will feel compared to a different type of material or a different formulation of the same material can be somewhat misleading.

Also, yes - I knew they weren’t CertiPur certified and understand that doesn’t always matter, and their foam is probably made in the US, but also other companies that had CertiPur were harder to order from for various reasons including requiring minimum $ that was too high for my purchase.

If a polyfoam is made in the US then the odds are high that it is CertiPUR-US certified (since most of the US foam pourers are CertiPUR-US certified) … even if the company that sells it doesn’t mention it on their site or isn’t certified themselves.

Phoenix