At CRP, we are proud to be recognised as corrosion experts, with over 40 years of experience delivering high-performance solutions for the most demanding chemical processing environments. Our products are engineered to withstand aggressive media thanks to the exceptional properties of paste extruded PTFE and PFA combined with the advanced processing techniques we use at CRP. When looking to improve durability and corrosion resistance, paste extruded PTFE and PFA lined pipework is the ideal solution. However, selecting the right manufacturer is just as important as choosing the right material, as processing quality and specification play a critical role in long-term performance.
Material selection for lined Pipework
PTFE and PFA are fluoropolymers with unique characteristics that make them highly effective in corrosive environments. Their non-reactive molecular structure provides excellent chemical resistance, while their smooth, anti-adhesive surfaces help maintain cleanliness and prevent contamination. Both materials offer UV resistance and maintain integrity across a wide temperature range. PTFE retains its chemical properties at temperatures beyond 200°C, while PFA delivers similar thermal stability with the added benefit of being melt-processable for complex geometries. These properties make PTFE and PFA ideal for applications where reliability and longevity are essential.
Processing techniques of fluoropolymers and how they influence durability
Processing techniques (paste extrusion process) significantly influence permeation rates, surface finish, dimensional accuracy, and vacuum performance. At CRP, we use paste-extrusion for PTFE liners, which ensures low permeation rates and cost-effectiveness compared to other methods. For more complex geometries, PFA moulding offers the best performance, delivering the lowest permeation rates and the smoothest finish. These processing techniques offer the longest services life and although have a high initial cost, over time provide a significant cost reduction. Understanding these differences is vital when specifying lined pipework for critical applications.
Specifying the correct lined pipework for durability within highly corrosive environments.
Specification is another key factor in achieving durability. At CRP, our experienced sales team works closely with customers to ensure every product meets the exact requirements of the process. We recommend enhancements such as special venting systems, anti-static liners, and other features that optimise safety and reliability. Our goal is to provide solutions that minimise total cost of ownership through superior quality and exceptional durability.
The solution for highly corrosive and demanding applications.
For highly permeable, corrosive and demanding applications, paste extruded PTFE and PFA lined pipework remains the best choice. When combined with expert manufacturing and specification support, these materials deliver unmatched resistance to corrosion and permeation, ensuring long-term reliability and performance.