This reliable and multifunctional wet rubber

Rubber is known since the discovery of AmericaBy columbus. The Indians used the milky sap of the rubber tree Hevea to seal the bottoms of the boats, create dishes, waterproof shoes, as well as for making balls.

But in Europe, rubber for a long time was notwidespread use (up to the XIX century). And all because raw rubber eventually dried out and became hard. The invention of the method of returning rubber to its original properties, as well as its temperature stabilization, created a real boom in the production of rubber products.

Поскольку каучуконосные плантации не могли to meet the ever-growing demand, over time a method was developed for the extraction of synthetic rubber, which we still use today. In modern production used crude rubber and rubber compounds. In its raw form, it is used for the manufacture of various products, as a rule - seals, as well as the repair of car tires and tubes in a hot way (vulcanization). From mixtures create a wide variety of products that are used in almost all industries. Both that, and other material are issued in the form of sheets or a continuous tape (cloth). Their purpose can be very different - medical, food, dielectric, oil-resistant, etc.

Use of raw rubber for car tire repair

Motorists are often faced with casesmechanical damage to tires (as well as cameras). In most cases, a damaged tire can be repaired. This can be done both by cold and hot vulcanization. Cold is performed using a special composition (activator butyl layer), and hot vulcanization - raw rubber.

Compound rubber components when coldvulcanization is carried out without heat treatment. This method takes much more time and requires strict adherence to the established technology. Hot vulcanization can be performed in any conditions, including in the field. All that is required is raw rubber and a vulcanizer. Vulcanizers can be stationary, portable (working from 220 V) and portable (working from the automotive network).

How to use raw rubber during vulcanization

Прежде всего место повреждения необходимо thoroughly clean from dirt, sandpaper and degrease. After that, you need to put a patch of raw rubber on the cut and place it in a vulcanizer. To prevent sticking between the patch and the heating element is usually laid a piece of paper.

Crude rubber outwardly looks like some kind of plastica mixture that, when vulcanized, penetrates deep enough into the damage and reliably seals it. When heated, it becomes durable, but remains elastic. The temperature at which the vulcanization occurs, is about 140-160^aboutC. When the specified temperature is reached (determined by the change in the color of the paper), the vulcanizer is turned off. After the product is completely cooled, it is ready for further use.

It is not recommended to let the temperature rise over 160^aboutC, since this leads to drying of the rubber and, as a result, to loss of elasticity.