{"product_id":"semlos-heat-blocking-putty-jar-12-oz-moldable-heat-insulation-clay-for-valves-sight-glasses-welding","title":"Semlos Heat Blocking Putty Jar 12 oz — Moldable Heat Insulation Clay for Valves, Sight Glasses \u0026 Welding","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eSemlos Heat Blocking Putty Jar is a compact 12 oz moldable insulation clay designed to stand up to high heat and keep critical surfaces protected during soldering, brazing, and welding tasks. The formulation blends a natural, non-toxic hydrogel-ceramic composite containing silicon, aluminum, and sodium, delivering reliable performance without harmful additives. The texture feels clean and pliable, accommodating a wide range of shapes and joints, while remaining usable across multiple projects with proper care.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSafe, non-toxic composition with no harmful additives.\u003c\/li\u003e\n  \u003cli\u003eExcellent heat resistance to minimize heat transfer to surfaces and components.\u003c\/li\u003e\n  \u003cli\u003eMalleable texture that adheres well and molds around valves, sight glasses, and fittings.\u003c\/li\u003e\n  \u003cli\u003eReusable for up to a year with proper care, reducing replacement waste.\u003c\/li\u003e\n  \u003cli\u003eDrip-free, mess-free handling that cleans up quickly after use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy it matters for your projects\u003c\/h3\u003e\n\u003cp\u003eWhen soldering, brazing, or performing fusion welding, protecting sight glasses, TXV valves, and other heat-sensitive parts can influence joint quality and equipment performance. This putty acts as a portable heat barrier, letting you shape a custom shield around edges, threads, and connections in seconds. It can be removed without leaving residue, so you’re ready to tackle the next task with minimal downtime.\u003c\/p\u003e\n\n\u003ch3\u003eCommon use scenarios\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSight glass installations: shield delicate glass from radiant heat during sealant curing or welding.\u003c\/li\u003e\n  \u003cli\u003eValve protection: cover TXV valves and directional valves to limit thermal exposure.\u003c\/li\u003e\n  \u003cli\u003eLine components: insulate liquid line filter driers, ball valves, and fixtures to preserve performance.\u003c\/li\u003e\n  \u003cli\u003eWelding prep: create a temporary heat barrier around joints and outlets for added protection.\u003c\/li\u003e\n  \u003cli\u003eGeneral reuse: reshape and reuse across multiple projects over months to a year with care.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eTips for best results: store in a cool, dry place and away from direct flames. Re-soften the clay by kneading until it returns to a pliable texture before reuse.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is Semlos Heat Blocking Putty Jar used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A reusable, high-temperature insulation clay designed to shield valves, sight glasses, and other heat-sensitive components during soldering and welding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long can the putty be reused?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: With proper care, it remains pliable and reusable for up to a year.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Semlos","offers":[{"title":"Default Title","offer_id":47463988002990,"sku":"B0DCSJB47X","price":57.13,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/6012\/9710\/files\/semlos-heat-blocking-putty-jar-closeup.jpg?v=1770287926","url":"https:\/\/handyskook.ca\/products\/semlos-heat-blocking-putty-jar-12-oz-moldable-heat-insulation-clay-for-valves-sight-glasses-welding","provider":"HandySkook","version":"1.0","type":"link"}