Final answer:
The three types of hardboard are standard hardboard, tempered hardboard, and low density hardboard, each with varying degrees of density, strength, and moisture resistance, tailored for various uses.
Step-by-step explanation:
The three types of hardboard are:
- Standard Hardboard: This type is the basic form, being dense, strong, and without additional additives. It is used for a variety of applications including furniture backing and floor underlay.
Tempered Hardboard: This hardboard is treated with oils and resins to provide additional strength, hardness, and resistance to moisture and abrasion. It is often used where more durability is required like in building construction and certain furniture applications.Low Density Hardboard: Also known as medium density, this type is lighter and less dense than standard hardboard, which makes it easier to cut and manipulate. It is suitable for non-structural applications where the added weight or density of the other types is unnecessary.
These materials offer different properties that suit various industrial and construction needs.