rubber
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rubber
An elastic material obtained from the milky sap (latex) of certain plants (natural rubber) or produced synthetically, and used for products such as tires or seals.
Die Sohlen dieser Stiefel sind aus robustem Kautschuk gefertigt.
The soles of these boots are made of robust rubber.
Since 'Kautschuk' (rubber) is a material (a so-called mass noun), it is often used without an article when talking about the material in general. The article is only used when a specific type of rubber is meant.
Reifen werden aus Kautschuk hergestellt.
Tires are made from rubber.
'Kautschuk' (rubber) is often used with the preposition 'aus' (made of/from) to describe the material of an object. Typical formulations are 'aus Kautschuk bestehen' (to consist of rubber), 'aus Kautschuk gefertigt sein' (to be made of rubber), or 'aus Kautschuk herstellen' (to make from rubber).
Die Dichtung des Fensters besteht aus flexiblem Kautschuk.
The window seal consists of flexible rubber.
The word 'Kautschuk' (rubber) is used especially in technical, industrial, or biological contexts. It describes the raw material from which products are then made.
Die chemische Industrie entwickelt ständig neue Arten von synthetischem Kautschuk.
The chemical industry is constantly developing new types of synthetic rubber.
rubber / eraser
'Gummi' and 'Kautschuk' can both have to do with elastic material. 'Kautschuk' means the material from which rubber can be made, either from plants or synthetically. 'Gummi' is the more general everyday word for the finished elastic material and for many products made from it. The words can be confused because both occur with tires, seals, or similar things. In everyday language, people usually say 'Gummi'. 'Kautschuk' sounds more precise and fits better when talking about the raw material or production.
Kautschuk wird für viele Reifen und Schläuche verwendet.
Rubber is used for many tires and hoses.
Die Dichtung ist aus Gummi und hält das Wasser zurück.
The seal is made of rubber and keeps the water out.