{"product_id":"next-level-vapor-block-ptfe-faced-silicone-septa-f","title":"Next Level Vapor Block PTFE Faced Silicone Septa For GL45 Screw Caps 43MM Lab Liners Pack Of Five Drip Free Chemical Resistant Seal No Sweat Protection For Sample Storage","description":"\u003cdiv\u003e5 Pack GL45 PTFE Silicone Septum Seals For Safe Lab Storage\u003cbr\u003e\n✔️ Leak proof chemical resistant rings sized for 43mm cap width \u003cp\u003eThis five pack arrangement of reusable septa fits standard GL45 screw top jars and provides a drip free barrier for sample containers. Chemists use these liners to lock in volatile solvents, block ambient moisture, and stop evaporation during routine extraction or storage workflows.\u003c\/p\u003e ✅ Reusable supply covers replacement cycles for worn out jar tops\u003cbr\u003e\n✅ Constructed from PTFE faced silicone materials that withstand harsh solvents\u003cbr\u003e\n✅ Flattens securely against the rim to lock out spills and stop evaporation\u003cbr\u003e\n✅ Serves as a dense physical barrier that guards samples from atmospheric moisture and gas exchange\u003cbr\u003e \u003cp\u003e💡 What advantages do PTFE lined silicone stoppers offer over traditional rubber plugs?\nSelecting the proper closure method keeps your chemical stock fresh and ready for analysis.\n- Fluoropolymer surfaces laugh off corrosive acids and alcohols without swelling or crumbling.\n- Heavy compression locks the container throat, maintaining consistent solvent weights during decanting.\n- Swapping dried out gaskets for fresh ones stays handy for busy bench operations while blocking humidity and keeping your liquids stable.\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49235081461995,"sku":"VXB0BR99ZBLJ","price":55.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61yXcJ9T1UL.jpg?v=1786798597","url":"https:\/\/vxb.com\/products\/next-level-vapor-block-ptfe-faced-silicone-septa-f","provider":"VXB Bearings","version":"1.0","type":"link"}