- * Inverted (non-Chinese): This is the most widely used rubber type. The surface is smooth, with the pimpled side facing inwards toward the blade. This enables the player to generate high levels of spin and speed. Spin is generated not by the action of the topsheet alone, but also by the ball sinking into the sponge and allowing greater surface area to contact the ball.
* Inverted (Chinese): Chinese rubbers typically have stickier (or “tackier”) topsheets. Spin is generated mainly by the topsheet, as opposed to the sponge, which is more condensed and firm. The result is usually a far better short game and potential offensive capabilities than normal inverted, but also a less consistent defensive and/or counter play.
* Short pimples (or “pips”): Short pimples-out rubbers are usually used by close-to-the-table hitters (for example, Liu Guoliang). They do not generate as much spin as inverted rubbers, but also make the user less susceptible to the opponent’s spin. Speed generated from a short pip rubber is generally greater than that of an inverted with the same sponge. Depending on the thickness of the sponge it is also possible to play a chopping game with short pimples by varying the spin of the return. Whilst blocking and attacking a “dead ball” effect is often noticed. Ding Song is an exponent of this style.
* Long pimples (or “pips”): Long pimples-out rubbers carry relatively long and soft pips. They do not have the ability to generate any real spin of their own, but feed off of the opponent’s spin instead. This allows the user to confuse the opponent and upset their rhythm. Long pips rely on the opponent’s oncoming spin, as they tend to “continue” the opponent’s spin, by bending upon impact, rather than reversing or changing the spin, like inverted rubbers. Long pips are usually used by close-to-the-table blockers, or choppers, but, in some cases, they can be used away from the table for long distance chops. They are usually only used on the backhand side, as they offer very limited attacking capabilities. Depending on the grip of the sides of the pimples and the thickness of the sponge it is also possible to play an aggressive game with long pips, although without much spin capability.
* Anti-spin: Anti-spin rubbers may look similar to the inverted ones, but their surfaces are very slick and frictionless. Like long pimples, they cannot generate much spin. Anti-spin is also not very susceptible to the opponents oncoming spin, due to the low coefficient of friction of the rubber’s surface, as well as the incredibly soft sponge, which is designed to cushion or absorb the momentum of the ball upon impact. This is also used to confuse the opponent, but is not widely used at the international level.
In Japan, JTTA changed a policy of the glue which is used to glue rubbers and racket in September 2006. Using glues and rubber cleaner which contains some volatile organic solvents is banned in a game place, except where allowed to use them. A game place means that all of grounds, including a parking area. On the other hand, the glues ITTF or JTTA authorized can be used in a place which is located to use them. From September 1st, no one can be allowed to use the glues that contain some volatile organic solvents.