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The Butterfly Sriver PowerSponge was a table tennis rubber introduced by Butterfly in response to a rule change by the International Table Tennis Federation (ITTF). Here’s what we know about it:
Context: ITTF Solvent Glue Ban:
Ban on Solvent-Based Glues: In 2008, the ITTF implemented a ban on solvent-based glues used to adhere rubber sheets to table tennis blades.
Impact on Traditional Rubbers: This ban affected some traditional rubbers that were designed to work with solvent-based glues.
Butterfly’s Response: Sriver PowerSponge:
Developed for New Bonding Systems: The Sriver PowerSponge was likely created as a response to the ITTF glue ban.
Focus on Compatibility: This rubber was likely designed with a topsheet and sponge combination that functioned well with the new water-based glues that were replacing solvent-based options.
Limited Information and Availability:
Difficulties in Finding Details: Due to its connection to a specific rule change, the Sriver PowerSponge might not be widely documented or commercially available anymore.
Focus on Newer Rubbers: Butterfly likely shifted its focus to developing newer rubbers that don’t require special considerations for glue compatibility.
Alternative Options:
Since the Sriver PowerSponge was a response to a specific regulation change, here are some alternative options to consider:
Modern Successor: Butterfly Amic (successor to Sriver with potentially improved control)
Modern All-round Options: Butterfly Grisek, Butterfly Allegro (consider these for potentially similar or improved performance with modern technology)
Focus on Compatibility with Modern Glues: Most modern Butterfly rubbers should be designed to work well with water-based glues that are the current standard.
Overall, the Butterfly Sriver PowerSponge was a specific solution to a bygone regulation. Consider the alternative options mentioned above for choosing a modern all-round rubber compatible with current gluing practices.