What is a Hardener? - Types, Applications, and Benefits

Hardener is a substance that is added to a mixture of resin and fiber glass to make the final product stronger and more durable. It is typically a liquid or powder that is mixed with the resin and fiberglass before it is applied to the surface being repaired or coated. The hardener reacts with the resin to create a strong bond between the fibers and the resin, which makes the final product more rigid and resistant to damage.

There are different types of hardeners available, depending on the specific application and the type of resin being used. Some common types of hardeners include:

* Polyurethane hardeners: These are commonly used in two-part polyurethane systems, where the hardener is mixed with the resin to create a strong and flexible bond.
* Epoxy hardeners: These are commonly used in epoxy-based systems, where the hardener is mixed with the resin to create a strong and durable bond.
* Phenolic hardeners: These are commonly used in phenolic-based systems, where the hardener is mixed with the resin to create a strong and heat-resistant bond.

Hardeners are an essential component of many composite materials, as they help to improve the strength and durability of the final product. They are commonly used in a wide range of applications, including aerospace, automotive, and sports equipment.