Tag Archives: PVDF fasteners for corrosion resistance

PVDF Screws for HCl (hydrochloric acid)

Posted on April 15, 2022 by Kathleen

Q: Am I right in understanding that polymer fasteners are  chemically resistant? I know they are not nearly as strong or temperature resistant as a metal, but our temperatures are ambient so would this work for me? A: For HCl, you would want to consider PVDF polymer fasteners.  These are … Continue reading →

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PVDF Screws for Sulfuric Acid & Strength

Posted on August 27, 2020 by Kathleen

Q: I’m looking for a polymer that can be exposed to low concentration of sulfuric acid. Which polymer do you recommend? I tried PTFE but they don’t seem to be as strong as I need. A: PTFE and PFA fasteners offer the highest polymer corrosion resistance but the trade-off is … Continue reading →

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PVDF Polymer Screws for High Strength Acid Resistance

Posted on January 17, 2019 by dean

Q: I have a laboratory applications that uses about 25% sulfuric acid at room temperature to 100F. I’d like to use a polymer rather than a metal if possible. I tried PTFE screws because I thought they were corrosion resistant, but they need to be replaced often because they can’t … Continue reading →

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