Tag: PEEK fasteners for sterilization processes

PEEK, PTFE, & PVDF Screws for Sterilization Processes

Q: I need a polymer fastener that can withstand high temp pharma sterilization processes? There may also be chemical contaminants in the process.
A: Depending on the temperatures you are looking at, the three options to consider would be PEEK, PVDF or PTFE fasteners. PEEK fasteners can be used to 500F. They are also resistant to many chemicals. Another option are PVDF fasteners. PVDF fasteners can only be used to 300F but offer a higher level of chemical resistance than PEEK. Finally there is PTFE. PTFE fasteners could be taken to 500F and are the most chemically inert of all the polymers.  However the trade-off with PTFE is that it is also the weakest.  All these polymers PVDF, PTFE and PEEK screws are approved by the FDA and USDA, so they are ideal for high purity pharmaceutical processes.

PEEK Polymer Screws for Sterilization Processes

Q:
I need a fastener that can withstand frequent sterilization processes at temps to around 400F. I would prefer a polymer if possible. Also the process is pharma related, so the screws would need to be non leaching and may be exposed to low concentrations of chemicals. Any ideas?

A:
For your process, I would recommend PEEK screws. They are an economic solution and will meet all your criteria. PEEK fasteners are usable and strong to 500F. They are often used in pharmaceutical processes for their high purity and are approved by the FDA, USDA, NSF and USP Class VI medical grades are available. PEEK is also ideal for sterilization processes as it is able to withstand various processes including high doses of ionizing radiation. It is also hydrolysis resistance meaning it is resistant to water or steam at high temperatures and pressures- which occurs often in sterilization. PEEK fasteners being resistant to many chemical and temperature stable, this would be a good choice.