Kynar PVDF Product Safety

Regulatory Status of KYNAR Polyvinylidene Fluoride

KYNAR homopolymer resins may be safely used in articles intended for repeated contact with food per Title 21, Code of Federal Regulations, Chapter 1, part 177.2510.

KYNAR homopolymer resins are acceptable for use in processing or storage areas in contact with meat or poultry food products prepared under Federal inspection according to the U.S. Department of Agriculture (USDA).

KYNAR homopolymer resins comply with the criteria in "3-A Sanitary Standards for Multiple-Use Plastic Materials Used as Product Contact Surfaces for Dairy Equipment, Serial No. 2000".

KYNAR homopolymer and copolymer resin grades have been tested and are in compliance with United States Pharmacopoeia (USP) Classification VI.

KYNAR homopolymer resin grades have been listed with the National Sanitation Foundation (NSF) under Standard 61 for potable water applications.

No adverse toxicological or biological response has been found when test animals, under controlled conditions, were exposed to KYNAR homopolymer resins. Tissue culture tests have also been negative. Routes of exposure have included oral, inhalation, implantation, and injection in addition to physical contact.

Recommended Safety Precautions for Melt Fabricating

KYNAR resins are relatively non-toxic and are not hazardous under typical handling conditions. Mechanical malfunctions or human error, however, may lead to thermal decomposition with evolution of toxic hydrogen fluoride (HF). Precautions must be taken to prevent excessive inhalation and physical contact with hydrogen fluoride should decomposition take place. Unlike PVC, KYNAR resins will stop decomposing when the heat source is removed and the temperature of the melt is allowed to fall to normal processing temperature.

Additives such as mica, asbestos, glass fibers, certain formulations of titanium dioxide, and very finely divided metals may catalyze thermal decomposition rates and should be used with caution. It is strongly recommended that the fabricator consult with us before using any additives.