{"product_id":"stainless-steel-alum-cup","title":"Stainless Steel Alum Cup","description":"\u003cp data-path-to-node=\"1\"\u003eDissolve glassified borax flux, remove firescale, and clean soldered gold and silver pieces quickly at the bench. The Stainless Steel Alum Pickling Cup is a heat-resistant bench container designed for post-soldering chemical cleaning. Jewelers mix powdered alum with water directly inside the cup and heat it with a microtorch or alcohol lamp. Boiling the solution strips away stubborn glassy borax flux and surface oxidation without generating toxic acid fumes.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eFormed from polished stainless steel, this cup resists hot alum solutions and will not contaminate pickle baths. The integrated pedestal base elevates the boiling basin above your soldering pad, keeping table surfaces safe while providing a stable, tip-resistant footing. Available in three nesting sizes—Small (Ø45 mm), Medium (Ø\u003cspan class=\"math-inline\" data-math=\"\\varnothing 70\\text{ mm}\" data-index-in-node=\"347\"\u003e70 mm\u003c\/span\u003e), and Large (Ø\u003cspan class=\"math-inline\" data-math=\"\\varnothing 95\\text{ mm}\" data-index-in-node=\"385\"\u003e95 mm\u003c\/span\u003e)—it covers everything from individual prong settings to wide cuffs and heavy chains.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"4\"\u003eWhy Choose the Stainless Steel Alum Boiling Cup\u003c\/h3\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eFast Borax Flux \u0026amp; Oxide Dissolution:\u003c\/b\u003e Simmering an alum solution inside this cup rapidly dissolves hardened borax flux glazes and surface blackened firescale on freshly soldered precious metal jewelry.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eCorrosion-Resistant Stainless Steel Alloy:\u003c\/b\u003e Heavy-gauge stainless steel resists pitting and chemical attack from boiling alum solutions, ensuring long shop life without contaminating metalwork.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eStable Pedestal Foot Base:\u003c\/b\u003e The flared pedestal base prevents accidental tip-overs during active boiling and keeps radiant heat off your workbench top.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eDirect Flame Safe:\u003c\/b\u003e Engineered to sit directly over an open microtorch or alcohol burner flame for rapid, on-demand heating at the soldering bench.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\"\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"0\"\u003eNon-Toxic Pickling Alternative:\u003c\/b\u003e Provides a safer workshop environment by utilizing mild potassium alum instead of hazardous sulfuric or sodium bisulfate acid baths.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,5,0\"\u003e\u003cb data-path-to-node=\"5,5,0\" data-index-in-node=\"0\"\u003eSpace-Saving Nesting Storage:\u003c\/b\u003e All three cup sizes nest neatly inside one another, minimizing storage space on crowded jewelry benches.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LUXGOLDTOOLS","offers":[{"title":"45mm","offer_id":67757252903012,"sku":"SKAD0144","price":9.59,"currency_code":"USD","in_stock":true},{"title":"70mm","offer_id":67757645561956,"sku":"SKAD0145","price":9.8,"currency_code":"USD","in_stock":true},{"title":"95mm","offer_id":67757645594724,"sku":"SKAD0146","price":10.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/2902\/9732\/files\/stainless-steel-alum-cups-three-piece-nesting-set.webp?v=1792404711","url":"https:\/\/luxgoldtools.com\/products\/stainless-steel-alum-cup","provider":"LUXGOLDTOOLS","version":"1.0","type":"link"}