Replacing Polyamide? Why Polypropylene Is Often the Better Choice

In the world of engineering plastics, polyamide (PA) is a true classic. It has been used for decades in a wide variety of applications – from structural components in the automotive sector to components in the household appliance industry. This is no surprise, as PA impresses with an impressive combination of strength, impact resistance, wear resistance, and high resistance to oils and solvents.

But in practice, the question is increasingly being asked: Is polyamide really the best solution in every case? Our experience shows: Not necessarily. In many applications, polypropylene (PP) can be an attractive alternative – and with tangible advantages.

Why polypropylene is a real alternative

Polypropylene offers properties that make it particularly attractive for certain applications. Here's an overview of its key advantages:

✅ Less weight – more sustainability

PP is significantly lighter than PA. This weight advantage leads to less material usage – and consequently a reduced carbon footprint . This is a strong argument, especially in times of increasing demands for sustainability and resource efficiency.

✅ Focus on cost efficiency

Polypropylene also scores economically: It is cheaper to procure than polyamide, which is particularly important for large quantities or price-sensitive projects. Furthermore, in many cases, existing tools can be reused for PP applications— a factor that should not be underestimated when making the switch.

✅ No conditioning necessary

Another technical advantage: PP absorbs significantly less moisture than PA. This eliminates the need for complex conditioning to achieve the desired properties – saving time and costs in production.

What to consider when switching

Of course, changing materials isn't always trivial. Several questions need to be clarified beforehand:

• Which media attack the component?

• Where are potentially critical points in component filling?

• What mechanical requirements must be met?

  
  

Together with our partner Vedran Muha from Borealis , a leading supplier of high-quality polypropylene grades, we have analyzed precisely these questions and developed various approaches for the successful substitution of PA with PP.

Our experience for your optimal material selection

Selecting the right material is a key factor in determining the efficiency, quality, and sustainability of your products. With our many years of experience and technical expertise, we support you in finding the best possible material solution for your application – customized, cost-effective, and future-oriented.

Contact us – we will be happy to advise you!