Translation guide
The English word "resin" covers both natural plant exudates and synthetic materials. In Japanese, the most common equivalent is 樹脂 (じゅし), a broad term for both natural and synthetic resins. For specific contexts, other words like 松脂 (まつやに) for pine resin or レジン (れじん) for craft resin are used.
The broadest term for resin, covering plant resins, synthetic resins, and plastics.
The standard word for resin in technical, industrial, and everyday contexts. It refers to both natural resins (like pine resin) and synthetic resins (like epoxy or plastic).
この容器は樹脂でできています。
This container is made of resin.
樹脂は天然のものと合成のものがあります。
There are natural and synthetic resins.
Loanword from English, commonly used for craft resins (e.g., epoxy resin for art), dental resin, or in product names. Less formal than 樹脂.
レジンでアクセサリーを作りました。
I made accessories with resin.
Sticky substance exuded by trees, often pine.
Specifically pine resin. Used for traditional purposes like making rosin or as a sealant.
松の木から松脂が出ている。
Pine resin is oozing from the pine tree.
Can also refer to natural plant resin in general, but 松脂 is more specific for pine.
この木は樹脂を分泌する。
This tree secretes resin.
Literally 'natural resin', used to distinguish from synthetic resins in technical contexts.
Man-made resin used in manufacturing, often synonymous with plastic.
Synthetic resin; the standard term in chemistry and industry. Often abbreviated to just 樹脂 in context.
合成樹脂はプラスチックの原料です。
Synthetic resin is the raw material for plastic.
Often used as a shorter form of 合成樹脂 in industrial contexts.
樹脂成型の技術が進歩している。
Resin molding technology is advancing.
Solidified resin used to increase friction.
Also used for rosin, especially for violin bows or baseball. The same word as pine resin.
バイオリンの弓に松脂を塗る。
Apply rosin to the violin bow.
Loanword from 'rosin', used in music and sports contexts.
ピッチャーがロジンを使う。
The pitcher uses rosin.
樹脂 is the formal, all-encompassing term for resin (natural or synthetic). レジン is a casual loanword often used for craft/hobby resin. 松脂 specifically means pine resin or rosin. In everyday conversation, plastic items are usually called プラスチック rather than 樹脂.
レジン is not appropriate for natural tree resin or industrial synthetic resins. It's mainly for craft, dental, or some consumer products. Use 樹脂 for general or technical contexts.
樹脂がすぐに固まった。
The resin hardened quickly.
これはエポキシ樹脂でできています。
This is made of epoxy resin.
手に松脂がついた。
I got pine resin on my hands.
天然樹脂は化粧品にも使われます。
Natural resin is also used in cosmetics.
In everyday language, 'resin' products are often simply called プラスチック (plastic). Use this when referring to the material of common objects.
この椅子はプラスチック製です。
This chair is made of plastic (resin).