THE BUR BUTLER IS MADE OF A SILICON PLATINUM BASED SILICONE CURE SYSTEM ALSO CALLED AN ADDITION SYSTEM WHERE TWO DIFFERENT CHEMICALS (A SILLCON HYDRIDE AND A VINYL) REACT IN THE PRESENCE OF PLATINUM WHICH SERVES AS A CATALYST. IN THIS REACTION AN ETHYLENE GROUP (-CH2 CH2-) IS FORMED AND THERE ARE NO BY PRODUCTS. THE VULCANISATION HTV-2 OF THE SILICON GIVES US THE SILICON USED IN THE BUR BUTLER. A BURBUTLER USED IN A DENTAL PRACTICE IS USED TO HOLD ALL BURS SECURELY IN PLACE AND IS DESIGNED TO MAKE A MORE FLEXIBLE AND EFFECTIVE STORAGE AND STERILISATION SYSTEM FOR ALL TYPES OF BURS.

GENERAL INTERPRETATIVE RULES 1 & 6 OF THE COMBINED NOMENCLATURE TEXT TO CODES 3926, 3926 90, 3926 90 97 NOTE 4 TO CHAPTER 40 HARMONISED SYSTEM EXPLANATORY NOTES TO CHAPTERS 39 & 40