How do you say white rubber in french?

There are a couple of ways to say "white rubber" in French, depending on the context:

1. Caoutchouc blanc: This is the most literal translation and the most common way to say "white rubber". "Caoutchouc" is the French word for rubber.

2. Gomme blanche: This is another common way to say "white rubber". "Gomme" is another word for rubber, often used for eraser rubber.

3. (Du) caoutchouc de couleur blanche: This is more specific and could be used to differentiate white rubber from another colored rubber.

The choice of which phrase to use depends on the specific context and what you want to emphasize.