Thermosetting refers to a class of polymers that become irreversibly hard and inflexible upon curing. This process typically involves a chemical reaction that cross-links the polymer chains, making the final material heat-resistant and stable under stress. Once set, thermosetting polymers cannot be remolded or reshaped by heating, which distinguishes them from thermoplastics that can be melted and reformed.
congrats on reading the definition of thermosetting. now let's actually learn it.