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What are erasers made of?
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Erasers are made from either natural or synthetic rubber. Natural rubber is produced from latex that is collected from rubber trees. Water is removed from the latex, increasing the rubber content to 60%. Acid is added to the liquid concentrate in order to produce solid sheets of dry rubber.
Less expensive erasers are made from synthetic rubber and synthetic soy -based gum, but more expensive or specialized erasers are made from vinyl, plastic, or gum -like materials. At first, erasers were invented to erase mistakes made with a pencil; later, more abrasive ink erasers were introduced.
The raw materials that go into making the simple pink and blue erasers are. Fillers. Accelerators. Curing Agents. Coloring. Oils. Synthetic Rubber. Manufacturing Process. the process starts by putting a batch of rubber into the mill where is passed and rotated between large rollers that are heated.
Eraser, piece of rubber or other material used to rub out marks made by ink, pencil, or chalk. The modern eraser is usually a mixture of an abrasive such as fine pumice, a rubbery matrix such as synthetic rubber or vinyl, and other ingredients. The mixture is processed and extruded and, if made.
- The Editors of Encyclopaedia Britannica
Mar 8, 2018 · A lot of ingredients go into making a pink eraser. A vertical stack of three evenly spaced horizontal lines. A magnifying glass. It indicates, "Click to perform a search". Newsletters ...
Eraser ingredients – More abrasive erasers erase better, while softer ones require less friction but quickly get used up. Natural rubber is more absorbent than synthetic rubber. Eraser surface – Rough, gritty surfaces provide better erasing action than worn, smooth surfaces where abrasives have broken down.
During mixing, a variety of additives may be introduced: a small amount of petroleum-based oil to aid mixing, sulfur and other reagents for vulcanization (if needed), plasticizers to control firmness, amine or phenol antioxidants, and pigments.
