Translation guide
The material or process of sealing gaps and joints to make them watertight or airtight. In Japanese, the word depends on whether you mean the material itself, the action, or a specific context like construction vs. DIY.
Referring to the substance used to fill gaps, such as silicone or putty.
The most common term for caulking material. 'コーキング' alone can also be used, but adding '剤' makes it clear you mean the sealant.
このコーキング剤は防水性が高い。
This caulking material is highly waterproof.
The process of applying caulking material.
The standard way to say 'to caulk'. コーキング is a noun, so you use する to make it a verb.
風呂場のコーキングをした。
I caulked the bathroom.
Used more in professional or construction settings.
The tool used to apply caulk.
The standard term for a caulking gun.
コーキングガンを使ってください。
Please use the caulking gun.
Both are used, but コーキング is more common in everyday DIY contexts, while シーリング is often preferred in professional construction. The material itself can be called コーキング剤 or シーリング材.
ホームセンターでコーキング剤を買った。
I bought caulking material at the home center.
このシーリング材は耐久性が高い。
This sealant is highly durable.
Often used in construction contexts. 'シーリング' refers to sealing, and '材' means material.
シーリング材を充填してください。
Please fill with caulking material.
A loanword from English 'caulk', used in some DIY contexts, but less common than コーキング剤.
コークを買ってきて。
Go buy some caulk.
窓枠のシーリングをする必要がある。
We need to caulk the window frame.
Literally 'fill the joints'. A more descriptive phrase, often used when talking about filling gaps with any material.
タイルの目地を埋めた。
I filled the tile joints (with caulk/grout).