Staedtler 5427 Rubber Kart Kneading Rubber

sorry aber der Knetradiergummi ist zu weich ..

This eraser is dark grey, and about 4.5 cm square. It comes wrapped in plastic film to protect it, and a paper wrapper. Unfortunately, the wrapper is useless once opened, so you'll need to find a bit of cling-film or a bag in which to store the eraser once opened. I bought the eraser specifically for use with pastel and charcoal artwork, on a variety of papers. It's really effective at erasing pastel and charcoal, without wrecking the "tooth" (surface texture) of the paper; though pastel is almost impossible to erase 100% from any surface. It is obviously not quite so good at erasing harder stuff, such as HB graphite pencil, but it is reasonable at erasing 4B and softer graphite pencil types. Its dark grey colour does not transfer to the paper. It is squashy and kneadable, with the consistency of "Blu Tack", and may be formed into a point to dab away excess pastel or charcoal from a very small area. It may also be rubbed on the paper, like a hard eraser, though it inevitably deforms quickly when used that way. As someone who sketches portraits almost daily, I expect this eraser will last me quite a few months.

Borracha muito boa, maleável e apaga bem. Só acho que poderia vir em alguma case para poder guardar.

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