Hydrolysis – why some plastics tend to crack in humid environments?

Sanna Lahokallio, 5.5.2020

One common factor causing failures in humid environments is a phenomenon called hydrolysis. In hydrolysis moisture attacks polymer chains and breaks them. This causes the material to become brittle and usually leads to cracking of the material.

Check out this infographic about hydrolysis. What is is, when does it occur and which plastics are especially prone to it!

One of our most popular blog post was also dealing with hydrolysis. If you haven’t read it yet, you can find it here: Why 85/85 test is a wrong test choice for PET (polyethylene terephthalate)?