Thermoset and Thermoplastics: what are they?

On our product pages, we talk about what threaded inserts for plastics will be better in thermoset and thermoplastic. But what exactly are thermoset plastics and thermoplastic? And how will they improve your threaded inserts?

What is the difference between thermoset and thermoplastic?

Despite thermoset and thermoplastics sounding similar, they have varied properties and applications. By thinking about the Fitsco-Brandsdifferences in performance, product designs can be improved and better sourcing decisions can be made.

The biggest difference between the two is that it is possible for thermoplastics to be remelted back to liquid form, where thermoset plastics will stay in solid form.

What are they?

The reason why thermoset plastics cannot be remelted is because the polymers in the plastics combine during the curing process to form an irreversible chemical bond. This process nullifies the chance of the product remelting when heat is applied, so thermosets are perfect for high-heat applications such as electronics.

Thermoplastics, however, soften when heated and will become more fluid as heat is applied. This process is reversible as no chemical bond occurs. This allows thermoplastics to be remolded without effecting the physical properties of the material.

Benefits of Thermoset

  • Resists high temperatures compared to thermoplastics
  • Flexible in design
  • Brilliant appearance
  • Quality dimensional stability

Benefits of Thermoplastics

  • Can be recycled
  • Resistant to high-impact
  • Capable of remelting and being reshaped
  • Resistant to chemicals
  • Eco-friendly manufactured

Blog by Dan - 3rd July 2019

#fitscoblog #threadedinserts #manufacturing #engineering