Upholstery Foam

Upholstery Foam


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When choosing upholstery foam, there are different qualities.  There are couple of particular features to consider. One is density.  Density is another word for the quality of the upholstery foam.  A 2.0 density is a higher level of quality foam as compared to a 1. density foam. Most people in the trade agree that an […]




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When choosing upholstery foam, there are different qualities.  There are couple of particular features to consider.

One is density.  Density is another word for the quality of the upholstery foam.  A 2.0 density is a higher level of quality foam as compared to a 1. density foam. Most people in the trade agree that an upholstery foam with a density of 2.0 or higher is a quality foam.  Urethane is the chemical in foam, the higher the urethane content, the greater density and less air is present in the foam. Higher Densities are used any time additional resiliency and longer wear is needed. Most foam with a 2.0 density or higher are fine for seating cushions combined with the right compression number. Upholstery foam which is lower in density, is not going to last or support as appropriately as a higher density softer foam, even if it is firm.

The second upholstery foam feature, compression, also called the ILD, determines the firmness of the foam. A compression of 10 would definitely be a extremely soft foam, 34 a moderate firm, and  48  a firm foam.   A density of 10 would be used for a back rest cushion, 34 is for a seating foam where med firm is desirable, and 48 or higher is for any time a firm seat cushion is preferred. 

 Most upholstery foam is open cell foam, which means there is air inside it.  If open cell foam used outdoors, water can easily soak into it. Silk Film which is a soft vinyl membrane solution used to cover the foam when used outside to help keep the water from seeping into the foam.   When open cell foam will be used outside the house it should be used with a moisture barrier wrap prior to putting the last outside cover on.

Closed cell foam, MLC foam, is more expensive, but because of the closed cell design water will not penetrate into the foam.  Closed cell foam is useful for outdoor and boat cushions where humidity and water are found.

Another option when it comes to upholstery foam applications that may get wet is flow through foam, EZ DRI 60  and EZ DRI  30.  Flow through foam is actually an open cell foam which the cells are actually cracked so the water flows through much faster and consequently dries significantly faster.  It can be used for all outside purposes, like outdoor furniture, boat cushions.   EZDRI is used for outside cushions were rapid drying is required. In this scenario a porous covering has to be used on the bottom side of the cushion to let the water to fall on out and let the cover and foam to dry rapidly.

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