How to provide antimicrobial protection?
Last update on Jan 15, 2026
Industrial and consumer polymers are susceptible to degradation by microorganisms. This degradation can manifest as discoloration, the development of unpleasant odors, and a decline in the physical properties of the polymer. This microbial activity can significantly reduce the lifespan of a polymer product, particularly in outdoor applications where environmental stresses exacerbate the degradation process.
How does antimicrobial plastic work?
The antimicrobial effect in essence is provided by antimicrobial additive which is added to the plastic. When the microorganism comes in contact with the protected surface, it is prevented from growing, producing energy or self-replicating. The antimicrobial properties persist over the material’s lifetime, providing continuous protection.
Antimicrobial technology is integrated into the surface of polymer materials at the stage of manufacture or applied as a post-treatment coating. The chemistries can be formulated into polymer pellets, powders, or liquids. Common applications are medical devices, toys, sports equipment, appliances, food processing machinery, kitchen utensils, bathroom products, garbage bins, and electronic devices.
Image credits: Microban Products Company2
Formulation strategies
- (n.d.). Antimicrobial Plastics: The World's Hidden Superpower. Key Plastics.
- (n.d.). Antimicrobial Plastic & Polymer Additives. Microban.
- (n.d.). Antimicrobial Additive. ScienceDirect.
- (n.d.). Antimicrobial Plastic & Polymers. Ultra-Fresh.
- (n.d.). Antimicrobial Additives For Plastics and Polymers. BioCote.