As you may have expected, open-cell spray foam is similar to closed-cell in nature. It just has a lesser R-value. While most closed-cell spray foams will be above 6.0 per inch, open-cell is much ...

Polyurethane foam is perhaps the most widely used foam material. Open-cell polyurethane foams are odorless, breathable, fire retardant, and resist bacteria, dust, and oils. They also absorb sound.

Open-cell foams, such as polyurethane ester and polyurethane ether, ... It is an open-cell, low-density foam (0.7 lb/ft 3) that dampens sound over a wide range of frequencies.

DIY spray foam insulation costs depend on type and quantity. This guide breaks down the cost of closed-cell foam kits, ranging from $40 to $500 based on size.

Materials. Two types of polyurethane foam with open cell walls were purchased and used as received. The polyurethane foams were CFH-30 with a cell density of 30±4 cells/25 mm and CFS with a cell ...

There are two main types of regular memory foam mattress: traditional and open-cell. Traditional foam is made from a polyurethane by-product and has closed cells that trap heat.