PTFE has micro-pores, and proteins may ‘creep’ in there. FEP is preferred because it has the same chemical stability but without the micro-pores. However, you would have to test it for your proteins as we could not guarantee it would be appropriate for every protein application. Aside from that, the only dedicated low-adsorption tubing would use a special surface pre-treatment, which we do not carry amongst our products.
Click HERE for low pressure tubing ordering information and pictures.