{"product_id":"borosilicate-12mm-clear-glass-blowing-tubes-2-2mm-wall-durable-craft","title":"Borosilicate 12mm Clear Glass Blowing Tubes 2.2mm Wall - Durable Craft","description":"\u003cp\u003eIn this review of the Borosilicate 12mm clear glass blowing tubes the reviewer finds a straightforward, workmanlike option for hobbyists and labs that need reliable glass tubing. The bottom line: these tubes are best for projects that demand \u003cstrong\u003ehigh-temperature resistance\u003c\/strong\u003e and clean, reusable components. The pack gives consistent dimensions and fire polished ends that make handling and assembly safer, so crafters, educational programs, and industrial workshops looking for dependable, heat-tolerant tubing will appreciate their value.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior borosilicate glass:\u003c\/strong\u003e Provides excellent resistance to thermal shock so tubes withstand rapid temperature changes common in glass blowing and lab work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire polished ends:\u003c\/strong\u003e Smooth, finished ends reduce the risk of cuts and make these tubes easier to insert into fittings or to use in finished glass pieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent dimensions:\u003c\/strong\u003e Approximate 12mm outer diameter and 8mm inner diameter offer predictable flow and fit for fixtures and tooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable and easy to clean:\u003c\/strong\u003e The clear borosilicate surface wipes and rinses clean, supporting repeated use for experiments, art, or prototyping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable 2.2mm wall:\u003c\/strong\u003e The thicker wall improves mechanical strength for handling, bending, and light fabrication without immediate breakage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEco-conscious packaging:\u003c\/strong\u003e Sold in bulk that reduces waste and suits workshops that consume tubing regularly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese tubes are aimed at glass artists, school science departments, and small industrial users who need \u003cstrong\u003ereliable glass tubing\u003c\/strong\u003e that tolerates heat and repeated use. The clear walls help when observing flows or fusing, and the fire polished ends save time during setup and finishing.\u003c\/p\u003e\n\u003cp\u003eThose who need very large diameters, precision laboratory certified tubing with traceable batch data, or custom-cut lengths may want to look elsewhere. This product is best when uniform, general-purpose borosilicate tubes are acceptable rather than exacting, certified lab glassware.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood thermal performance from borosilicate glass for heating and cooling cycles.\u003c\/li\u003e\n\u003cli\u003eFire polished ends for safer handling and cleaner joints in blown or assembled pieces.\u003c\/li\u003e\n\u003cli\u003eThicker 2.2mm wall for added durability during crafting and light fabrication.\u003c\/li\u003e\n\u003cli\u003eClear tubes are easy to inspect and clean for repeated use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions are approximate; users needing precision OD\/ID tolerances should verify before critical use.\u003c\/li\u003e\n\u003cli\u003eSold as 10 pieces per set in this listing; larger single-length requirements require multiple packs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eBorosilicate clear glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003eApprox. 12mm (0.47 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner diameter\u003c\/td\u003e\n\u003ctd\u003eApprox. 8mm (0.31 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall thickness\u003c\/td\u003e\n\u003ctd\u003eApprox. 2mm (0.08 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnds\u003c\/td\u003e\n\u003ctd\u003eFire polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity per pack\u003c\/td\u003e\n\u003ctd\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Borosilicate 12mm clear glass blowing tubes are a practical choice for artists, educators, and workshops that need heat-tolerant, reusable tubing with smooth ends and solid mechanical strength. They offer clear value for general-purpose crafting and laboratory-adjacent projects, although precision lab users should seek certified alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these tubes suitable for direct flame working?\u003c\/strong\u003e\u003cbr\u003eYes, the borosilicate glass is formulated for heat resistance and will handle direct flame working for glass blowing and shaping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the tubes be cut and re-polished?\u003c\/strong\u003e\u003cbr\u003eThey can be cut to length, and the fire polished ends reduce the need for additional polishing, though a trained glassworker can refine edges further if desired.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the quantity fixed per pack?\u003c\/strong\u003e\u003cbr\u003eThis listing provides 10 pieces per pack; purchase multiple packs for larger projects or longer continuous lengths.\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":48227387965659,"sku":"B0D83DQHPD","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81gQTIxVBQL._AC_SL1500.jpg?v=1770748187","url":"https:\/\/gearmusthave.com\/products\/borosilicate-12mm-clear-glass-blowing-tubes-2-2mm-wall-durable-craft","provider":"GearMustHave","version":"1.0","type":"link"}