FEP-PTFE-Tubing Buyer's FAQ
Q.How do I determine which barb fitting I need for my tubing?
A.Barbed fittings fit inside of your tubing, so your barb size will need to correspond with the I.D. (inner diameter) of the tubing. For example, if you have tubing that is 1/4 inch ID you will need a fitting with a 1/4 inch barb.
Q.What is the difference between PTFE and FEP or PFA?
A.TeflonŽ is DuPont's trademark for its family of fluoropolymer resins which includes PTFE, FEP and PFA. The name is sometimes erroneously used to denote PTFE only. There are other brand names for these fluoropolymers, such as THV, PVDF, ETFE, ECTFE and CTFE.
Q.Do these variates of Teflon materials perform differently?
A.These materials, although members of the same family, have slightly different thermal and mechanical properties. PTFE and PFA have a slightly higher upper use temperature than FEP. FEP and PFA are clear (PTFE is translucent), and have better mechanical properties than PTFE.
Q.Will I get a tracking number when my item ships?
A.For customers who chose [b]UPS[/b]: a tracking number is automatically sent via e-mail before the order leaves our warehouse. For customers who chose [b]FedEx[/b]: a tracking number is usually available if requested by either e-mail or phone. For customers who chose [b]USPS[/b]: tracking numbers are only created by USPS for select services, such as insured packages. We will be happy to available tracking information if requested.
