9 results about "Hardboard" patented technology

Hardboard, also called high-density fiberboard (HDF), is a type of fiberboard, which is an engineered wood product. It is similar to particle board and medium-density fiberboard, but is denser and much stronger and harder because it is made out of exploded wood fibers that have been highly compressed. Consequently, the density of hardboard is 31 pounds per cubic foot (500 kg/m³) or more and is usually about 50–65 pounds per cubic foot (800–1,040 kg/m³). It differs from particle board in that the bonding of the wood fibers requires no additional materials, although resin is often added. Unlike particle board, it will not split or crack.