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Characteristics of mosses

This page will teach you the basics to understand the world of mosses.

In fact, the two most important variables for characterizing a foam are its density and compression.

By understanding this, you will become a wise consumer and you will be able to find the nonsense of the competition.MATELAS, LIT ÉLECTRIQUE, LIT AJUSTABLE, OREILLER,  CHOISIR OREILLER,  BLEUECO, CASPER, MATELAS DE LATEX, MATELAS DE MOUSSE, DORMEZ-VOUS, SOMMIERS, OREILLERS, BLOOM, POLYSLEEP, MOUSSE MÉMOIRE, MEILLEUR MATELAS, ENDY, COTON ORGANIQUE, SERVICE, QUÉBEC, ACCORD D, MATELAS SIMPLE, DOUBLE QUEEN, KING, LEESA, FIANCEMENT, FABRIQUÉ AU QUÉBEC

The density

The density of a foam is synonymous with quality and durability

This measurement is expressed in lb / ft³ and represents the weight of a 1 cu. Ft. Foam block. For example, if 1 cubic foot weighs 1.8 / lb; its density will be 1.8 lb / ft³.

The higher the density, the more the foam will retain its initial properties and lift before softening or sagging. However, it will cost more to produce. A denser foam is synonymous with quality and should last much longer.

Regular foams

The density of regular foams used in industry is between
1.0 and 2.5 lb / ft³:

  • Low: 1,0    1,1 1,2 1,3 1,4
  • Average : 1,5 1,7 1,8
  • High : 2,1 2,5

HR foam

  • High : 2,1 2,5 3,0

Memory foam

  • Average : 1,5 2,5
  • High : 3,0 4,0 5,0 6,0 8,0

The compression

Compression indicates whether a foam is soft or firm

This measure. expressed in lb / 50 in² gives the measure of compression. It is obtained by calculating the weight necessary to compress the foam by 40% of its initial height.

The higher the compression index, the more the foam is said to be firm. It is also related to the density, because for a foam of a given density there are several possible compressions.

Regular foams

  • Flexible: 18 27
  • Medium: 28 30 32 35
  • Closed : 38 40 45
  • Very firm : 50 55 60 70 90 100

HR foam

  • Souple : 19 23
  • Medium: 29 35
  • Closed : 44
  • Very Closed : 55 ― 75

Memory foams

  • Very flexible: 10 12 13 14