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The Ittf ban of Voc based speed glues for condition reasons, has resulted in the (presumable) unintentional ban of regular table tennis glues as well. As a result, most builder have stopped producing all Voc based products, and are changing to water based glues. In the eye of many, these new glues are harder to use, don't offer some of the same benefits and are significantly more expensive. The main confident of the water based glue is that they are safer to use, and althought this is very important, particular handling of the Voc based glues also makes relatively safe, so there is little suspect to stop using them. This guide will frame to make Voc based table tennis glue from facilely available products, with performance very similar to the brand name Voc based glues that are not no longer produced. This guide is Not a suggestion to continue using these glues, but it gives habitancy the option if they do wish to continue using them.
A few warnings before we get into this guide:
Table Tennis
1. Under new Ittf rules, the Voc based glues are now illegal to be used for Ittf events, and most national associations and clubs have adopted the same rules, and testing for these substances may be done at some events. Although "Airing" the bat after you've glued it up for a few days may well cause all the Voc to evaporate, there is still a risk your bat may be found to be illegal. So be warned!
How to production Your Own Voc Based Table Tennis Glue - With Care
2. All the Voc based table tennis glues consist of dangerous and poisonous compounds, so contact with the glue or breathing in the vapours is a definite condition hazard. Any way these glues have been used for any decades by players worldwide, so when handled with care in a well ventilated area, the risk is actually quite low.
Voc based glues and the Ittf Ban:
Since the ban of all Voc based table tennis glues by the Ittf, most manufacturers have stopped producing them. The ban was actually focussed on Voc based "Speed Glue" (that most top players use), as these produce a lot more vapours, and therefore pose a much greater condition risk. Any way since the ban, and the subsequent testing for Vocs to recognize their presence, cannot distinguish in the middle of speed glue and normal glue, both glues are effectively banned.
Although there are quite a wide range of water based glues around, many feel they are as easy to use, nor are they as quick to use or as effective. The Voc based glue actually gave rubbers a mild form of priming, which actually boost their performance a little, although not everyone find this consequent noticable. This consequent is more noticable (and effective) on hard sponged Chinese rubbers than it is on most Euro/Japanese rubbers. Water based glues are also currently more expensive, although this is more likely because they are a new product, and the prices are likely to resolve down over time.
Some rubber do have warning on them, and advise to Only used water based glue. The author of this description has glued many of these rubber with Voc based glues as have some of his friends and fellow players, and have never had a issue with them.. Only speed glue is likely to be an issue, as it stretches the rubber quite a bit. Still if you're worried about voiding the warrantee of a rubber, or are very worried about damaging the rubber, or the condition issue is an concern, then you might be better off with water based glue.
Making your own Voc based glue:
The basic ingredient of Voc based table tennis glue is rubber cement. Although there were variations in the glues from the distinct manufacturers, there was actually not a great deal of distinction in the middle of them. Rubber cement, not to be confused with contact cement, is most ordinarily available at art provide stores, as it's still ordinarily used in this area.
A similar product, called vulcanising fluid or cement, is also still ordinarily used in the rubber/tyre industry, and you can even find it in motorcycle mend kits. However this product is believed to consist of more nasty with some more very toxic ingredients, so it is recommended to use the stuff from the art provide stores. Note though that both are very flammable, dangerous and toxic, and without detailed chemical analysis, there is no real basis for my preference for the art cement. You can find some more details on rubber cement from the wikipedia here: Rubber Cement. The author uses the National Material (Nam) Art Cement, which is ordinarily available in Australia. Other base ones are "Best Test" and "Elmers" rubber cement.
So you can call or visit your local art provide store and buy the art cement in small to large tins... Usually varying from 100ml to 4000ml. All the shop seem to also sell a thinner for the rubber cement, which is basically an organic solvent (heptane is ordinarily used) meant to thin down the glue. Usually the rubbers Is a itsybitsy thicker than regular table tennis glue, so thinning it down is recommended, as a glue too thick can form too strong a bond in the middle of your rubber and blade, development it hard to remove.
In a well ventilated area, you can thin the rubber cement down, by pouring some into a smaller tin, and mix almost 10xrubber cement with 1x thinner. You can try less thinner first, since some glues may already be thinner, but ordinarily 10:1 ratio works well. After you put them together, mix them well with a stirrer, like a metal screwdriver or something else that is not affected by the glue, and from which it's actually removable afterward. Mix well for a few minutes, until the blend looks consistent with no lumps or thick bits in there.
At this point the glue is ready to used immediately. You can pour it into an old glue or speed glue tin, one that has a brush attached to the lid, since a brush makes it real easy to apply and spread the glue.
The author personally continues using this glue for most jobs that he does, as he feels it does a better job and he does take all the critical precaution to make sure it's not condition issue. The only time water based glue is used is when habitancy invite it, or if the bat is likely to be used in a tournament where testing for Vocs may be performed.
production Your Own Voc Based Table Tennis Glue - With Care
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