●Positive rubber

Also called short-grain rubber, it is characterized by good elasticity, fast speed, stable hitting, and no spin. It is suitable for fast attacks close to the table, especially left and right pushes. Offensive style of play is one of the most commonly used types of rubber for straight-line fast-break players. In the past, a large number of world champions such as Zhuang Zedong, Li Furong, Jiang Jialiang, Xie Saike, etc. all used positive rubber sponges for pen-hold shooting. Today's world champion Liu Guoliang also uses this type of rubber. If you feel that your wrists are flexible but your arms and waist and abdomen are not strong enough, it is best to choose a rubber racket that wins with speed.

There is also a medium-grained rubber on the international market between short-grained and long-grained rubber, which has a unique effect of non-spin attack. The opponent's strong draw or backspin ball can This kind of rubber is not scary at all. In the past, the ball would not spin and be erratic, making it difficult for the opponent to exert his strength. It is called "magic rubber".

●Reverse glue

It is characterized by strong batting rotation, stable hitting, and easy control. It is suitable for arc type or arc combined with fast break style. Because of its stable hitting and good ball control, it is also the preferred type for beginners. For professional players, there are a variety of anti-adhesive sponge rackets with different properties to choose from. For example, the rubber has strong stickiness and the matching sponge is soft and thick, so it has good "biting" and "wrapping" characteristics of the ball. Reverse sponge rubber is currently the most commonly used rubber for vertical and horizontal shooting players. Almost 100 European players use this type of rubber, and nearly 80 Asian players also use it. Because this kind of rubber takes into account the requirements of speed and rotation better.

At present, most of the top international players use anti-adhesive rubber. For example, Waldner, Persson, Seve, Ma Wenge, Wang Nan, etc., who combine loop play with fast break, Gaiting, Wang Tao, Kong Linghui, Deng Yaping, Li Ju, etc., who combine fast break with loop play, penholder grip Ma Lin, Yan Sen, Feng Zhe, etc., all of them are made of reverse rubber on the front or both sides.

Players who fight against rubber all hope that the rubber has high binding force, that is, the rubber surface must be sticky, so that it can have a high friction coefficient. Except for professional athletes who have the conditions to change the rubber when playing games, amateurs may not have this condition, so they must know how to protect the stickiness of the rubber. The simplest way is to use a soft foam sponge dipped in clean water to clean it after each practice. There are also special cleaning agents on the market, which will have better results. After cleaning, cover it with polyester film to prevent dust and oxidation.

● Raw rubber

Raw rubber is rubber with upward particles and a diameter greater than its height. Its characteristics are that the ball sinks and the ball spins weakly. Because raw rubber has the effect of reducing rotation, it is especially easy to control the ball. At present, a group of horizontal and double-attack players adopt a combination of forehand reverse rubber (looping) and backhand raw rubber (quick dial and short swing) in order to obtain changes in batting. Today's world champion Wang Tao and famous players Chen Jing, Geng Lijuan, etc. all use the backhand raw rubber style. South Korean and North Korean female players Zai'an holds the ball with the ball. : black; background-color: #99ff99'gt; Rubber can be used as an option for back-side glue for pen-hold shooting and reverse shooting.

●Long glue

This is a thin and long rubber covered on a thin sponge. The rubber sponge was invented in my country in the 1960s. At that time, Zhang Xielin used this kind of rubber to create unpredictable balls, and he was called a magician in the table tennis world. This is because this kind of rubber ball will produce abnormal rotation on the racket surface. Typical changes are: the backspin ball played by the opponent will fly back with topspin when the opponent uses long rubber to rub it; the topspin ball played by the opponent will fly back. , your side uses long rubber to block and then flies back with backspin; when you use a chip to hit the opponent's loop ball, the ball will spin more, but when you use a chip to return the ball, it will not spin. These abnormal changes often cause the opponent to make mistakes or return high balls. People who are not familiar with the performance of long rubber can often win easily when playing this kind of ball. However, when playing with this kind of rubber, not only will the opponent make many mistakes, but it is also difficult for one's own side to master the ball, which greatly reduces the viewing and entertainment of table tennis.

In May 1998, the ITTF held a council meeting in Durban, South Africa, and by a vote of 19 to 18, decided to ban the use of long rubber, and stipulated that the ratio of the height to diameter of the long rubber should not be greater than 1:1. . Young athletes must not use long glue. On the one hand, long glue is difficult to master. On the other hand, if you are not careful, it can easily cause wrong shaping. The Chinese Table Tennis Association has already made it clear that long rubber is not allowed to be used in youth competitions.

●Anti-arc rubber

There is also a kind of reverse-adhesive sponge rubber called "anti-arc rubber" that is specially used to deal with loop balls. This kind of rubber has no stickiness on the racket surface and has a smooth surface. It is also slightly astringent, and the ball travels slowly, has a short arc, and sinks and erratic after landing, making it difficult for opponents to make conventional judgments. It is especially effective against loop balls. As mentioned above, Cai Zhenhua used this kind of rubber on the back.

In addition to the selection of rubber characteristics, attention should also be paid to the selection of sponges, that is, the thickness and thickness, hardness and softness of the sponges. Generally speaking, thick sponges eat the ball deeper, bite the ball for a longer time, hit the ball with more stamina, and have more obvious characteristics when pulling the ball; on the contrary, thin sponges eat the ball for a short time, hit the ball quickly, and control the ball well, but The ball does not have enough stamina to kill the opponent easily. As for the hard sponge, it has the characteristics of short bite time and fast ball speed, which is suitable for fast break play; while the soft sponge has slower ball speed, but has better control of the ball. Most people can hit it more smoothly and more steadily.

In addition to sponges and rubber, the glue used to bond sponges and rubber also plays a very important role in today's high-tech era. A special odorless fast glue that can be applied before a game to exert a "medicinal effect" (it is said to improve the elasticity of the rubber by 20-30%), just like giving a stimulant to the racket. This wonderful feature was accidentally discovered by the Hungarian player KLAMPER. After he lost a game, he felt that the rubber on his forehand was not glued well, so he re-attached it. Unexpectedly, the half-dry rubber made the ball faster. few. Fast glue is no secret these days, but some people have become too superstitious about its effectiveness.

Now not only is the sponge rubber required to comply with the regulations of the International Table Tennis Federation (ITIF in English), the total thickness including the adhesive must not be thicker than 4 mm, and the two sides of the rubber must be bright red on one side and bright red on the other. Dark black, etc., to participate in major competitions, you must also use rubber and glue that have been approved by the ITTF. At present, many domestic varieties have been approved, and their edges have clearly visible trademark models and ITIF marks.

My recommendation is to use double-sided anti-adhesive sponges, supplemented by front-end adhesive sponges and reverse-adhesive sponges. As an anti-adhesive sponge suitable for both professional athletes and amateur players, it is advisable to choose a type with strong viscosity and moderate elasticity. With the improvement of the understanding of table tennis rotation and the strengthening of ball control ability, in order to obtain the changes of the ball, sponge rubber with different properties can also be configured on the front and backhand sides. In short, the choice of rubber and the type and configuration of front and back rubber must vary from person to person. Former world champion Qiu Zhonghui said that table tennis is a sport with a very strong "personality". The types and models of rubber are ever-changing, and you should choose rationally based on your own conditions and technical characteristics.