Basics of Polyurethane Foam
- May 10, 2018-
Polyurethane foam is perhaps the most widely used material in bedding (as well as a whole host of other applications). Low density polyurethane is favored by many manufacturers as a top layer material to create a soft initial feel (that doesn’t last very long) but does make for a good first impression.
Higher grade polyurethane (i.e. with higher density), is used to create highly resilient and progressively resistant support cores that hold up the more pressing parts of your body, that would otherwise sink through a soft comfort layer.
The durability of polyurethane is dependent upon its density: low density foams will start showing signs of deterioration a couple of years into their use, while high resilience foams will last for years without any tangible alteration in their performance.