Translation guide
A thin layer or coating applied to a surface to protect it from damage, scratches, dirt, or other harm. In Japanese, the translation depends on the context: whether it's a physical plastic sheet, a chemical coating, or a metaphorical layer.
protective film (plastic sheet)
protective film (coating)
A removable plastic film used to protect screens, furniture, or other surfaces during shipping or use.
The most common and general term for a protective film, especially for electronic screens, glass, or surfaces. It is a compound of 保護 (protection) and フィルム (film).
I put a protective film on my smartphone screen.
This protective film is scratch-resistant.
Often used interchangeably with 保護フィルム, but シート implies a sheet, sometimes thicker or for larger surfaces like furniture or car bodies.
A more technical term emphasizing surface protection, used in industrial or manufacturing contexts.
A thin layer formed by a chemical process or applied as a liquid that dries to protect the surface.
Refers to a protective film formed by a coating, chemical reaction, or deposition. Used for paint, oxide layers, or sealants. 膜 means membrane or film.
A protective film is formed on the car's paint.
Often used to refer to the protective coating itself, especially in contexts like car detailing or industrial applications. It implies a layer applied as a liquid.
A figurative barrier that protects something from harm or influence.
Used metaphorically to describe something that acts like a protective film, such as a psychological barrier or a social shield.
He has built a kind of protective film around his heart.
In abstract contexts, Japanese often uses バリア (barrier) or 防御 (defense) rather than a direct translation of 'protective film'.
Put up a mental barrier.
保護フィルム is a physical sheet, usually plastic, that you can peel off. 保護膜 is a layer formed by a chemical process or coating, not a separate sheet. Use 保護フィルム for screen protectors and 保護膜 for paint sealants or oxide layers.
Peel off the protective film.
A protective film forms.
When moving, I covered the furniture with protective sheets.
This product comes with a surface protective film.
このコーティング剤は強力な保護膜を作ります。
This coating agent creates a strong protective film.
Create a protective film with a glass coating.