PVFA, or Polyvinyl Formal, is a polymer derived from polyvinyl alcohol (PVA) through the process of formalization. It is known for its excellent adhesive properties, chemical resistance, and ability to form films, making it useful in various applications, including coatings, adhesives, and as a component in some composites. PVFA can also be utilized in the production of specialty products like inks and sealants. Its versatility stems from its ability to maintain stability under different environmental conditions.