Metal free Dursan Coated Stainless Steel HPLC Columns Comparison to PEEK Column Performance - Tips & Suggestions
Date: 25-SEPTEMBER-2020 Last Updated: 28-NOVEMBER-2025
Our Dursan Coated metal free treatment of stainless steel is excellent for many compounds that will interact with stainless steel
Our Dursan coated metal free stainless steel offers a robust and inert alternative to PEEK in many cases. It is important to note that Dursan is hydrophobic and in other cases involving other molecules, PEEK is preferred.
Our Dursan Coated metal free treatment of stainless steel is excellent for many compounds that will interact with stainless steel
- PEEK is a highly inert material which has been used in HPLC applications for years. However, PEEK has some limitations
- Mechanical strength: PEEK begins to flex at 3000 to 5000 PSI, making it unsuitable for UHPLC and other applications where high pressure is required.
- Work-ability: Machining of PEEK doesn’t produce sufficiently consistent IDs, which disrupts flows and can shift retention times.
- Environmental: PEEK has temperature limitations and solvent related swelling issues which limit solvent and temperature options for the user.
Our Dursan coated metal free stainless steel offers a robust and inert alternative to PEEK in many cases. It is important to note that Dursan is hydrophobic and in other cases involving other molecules, PEEK is preferred.
