Definition
A polymer film coated with a thin vacuum-deposited metal layer (typically aluminum) to enhance barrier and appearance.
Applications
- Decorative overwraps
Benefits
- Improves moisture/oxygen barrier vs plain film
- Provides metallic visual
- Lighter and more flexible than foil
Industry Examples
- Medical: metallized overwrap for light-sensitive OTC components (application-dependent).
- Industrial: metallized wraps for parts requiring moderate barrier and branding appeal.
- Electronics: provides Faraday cage shielding properties in static-shielding bags for ICs and microprocessors.
FAQ
Q: Is metallized film as good as foil?
A: Typically lower barrier than foil but often sufficient and more flexible.
Q: Can metallized films be reverse printed?
A: Yes—common for protected graphics.