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- Speedglue, the glue used in the practice of regluing your rubbers, has been
- used since the late 70's. I believe that the practice was attributed to
- Klampar or Surbek. What the players do before each practice session or
- match is to peel off the rubber sheet from the wood blade, put fresh glue
- on both the blade and rubber sheets, and replace the rubbers back onto the
- wood. The secret is a solvent that is found in the glue - most commonly -
- trichloroethylene. The trichloroethene can penetrate into the molecular
- network of the sponge effectively 'swelling' up the sponge (A crude analogy
- may be taking a sponge that the hard when dry and becomes soft wneh wet).
- The rubber sheet, when 'swelled' by tri-chloroethylene becomes much softer.
- This will do a few things to your bat. The ball can penetrate further into
- the sponge of your rubber, in effect, making more contact with the blade.
- Thus, the more contact the ball has with the blade, the faster your shot
- will be. Also, since you can sink the ball further into the spong you can
- generate more spin. The softer sponge also markedly increases the dwell
- time that the ball stays on your racket - so it can also increase your
- control.
-
- Regluing is more effective with rubber sheets that have a soft sponge.
- The softer sponges have a less heavily cross-linked molecular network than
- hard sponges that allow the solvents to penetrate easier and swell/expand
- the sponge easier. Thus, there will be more of a regluing effect if you use
- a soft sponged rubber. However, a soft sponge will lose it's elastisity
- faster than a hard sponge.
-
- Some disadvantages come with regluing. The first disadvantage is the
- decrease in elasticity of the sponge. When trichloroethylene penetrates
- the sponge and breaks apart molecular cross-links, the sponge becomes
- softer. When the solvent proceeds to evaporate from the sponge, the
- cross-links are not in the same condition as they were before the solvent
- was applied, and thus, a decrease in the elasticity/ resilience of the
- sponge. After about 20 regluings, there can be a significant change from
- the original character of the rubber. The second disadvantage is the
- constant change is racket angle when playing. The effect of the solvent
- gradually decreases over time, and constant modifications in your racket
- angle must be done. Also, regluing will add weight to your bat each time
- you reglue because of the extra glue applied. Finally, the solvents used
- are usually very volatile, toxic, and could be cancerous.
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