[FONT=Verdana,New Font Name,Helvetica,Geneva,Swiss,SunSans-Regular]What is Density? What is Compression / Firmness? Is there a difference?[/FONT][FONT=Verdana,New Font Name,Helvetica,Geneva,Swiss,SunSans-Regular]
[/FONT][FONT=Verdana,New Font Name,Helvetica,Geneva,Swiss,SunSans-Regular]Yes, there is a big difference between density & firmness of particular foam and mattress foam. First I will discuss density, then compression (ILD)...
[/FONT][FONT=Verdana,New Font Name,Helvetica,Geneva,Swiss,SunSans-Regular]Density: Technically, it is taking one solid chunk of particular piece of foam sized 12" x 12" x 12", and weighing it by pounds. The denser the cube is, the more likely that particular foam has more quality, thus is more resilient and durable. (This is true only if the foam is not filled or "load" with additives that just add weight to the foam. Rest assured, this is NOT done to our foams or foam inserts.)
[/FONT][FONT=Verdana,New Font Name,Helvetica,Geneva,Swiss,SunSans-Regular]ILD (Indentation Load Deflection): Technically, taking a 24" x 24" x 4" (or no smaller) chunk of foam, and compressing it with a 50 square inch circular foot down 1 inch (25% compression test), measuring in pounds the force needed to compress the foam. The higher the number, the firmer the foam, & the lower the number, the softer the foam.[/FONT]