{"product_id":"brazing-flux-powder-d-21-250g-steel-and-copper-brazetec","title":"Brazing Flux Powder D-21 250g – Strong Steel \u0026 Copper Joints – Brazetec","description":"\u003cb\u003ePrecision Brazing Flux for Automotive \u0026amp; Electrical Alloys | Brazetec.\u003c\/b\u003e \u003cb\u003eBrazetec Flux Powder D-21 – 250g of High-Performance Metal Joining Technology for Automotive \u0026amp; Electrical Industries. \u003c\/b\u003e\u003cb\u003eBrazetec Flux Powder D-21 (250g)\u003c\/b\u003e is a professional-grade, water-mixable brazing flux specifically engineered for \u003cb\u003eprecision metal joining\u003c\/b\u003e across a wide range of applications. Trusted by engineers, manufacturers, and metalworkers in the \u003cb\u003eautomotive, HVAC, and electrical sectors\u003c\/b\u003e, this flux provides \u003cb\u003eclean, oxide-free surfaces\u003c\/b\u003e for optimal filler adhesion and high-strength bonds. Designed to work with \u003cb\u003esteel, copper, copper alloys, nickel, and nickel alloys\u003c\/b\u003e, Brazetec D-21 offers outstanding chemical performance during both \u003cb\u003eflame and induction brazing\u003c\/b\u003e, ensuring \u003cb\u003eclean joints, reduced oxidation, and maximum bond strength\u003c\/b\u003e. From vehicle heat exchangers to high-voltage electrical connectors, this versatile flux delivers consistent, reliable results. Mixable with water to create a brushable paste, the D-21 formula allows for \u003cb\u003econtrolled application, reduced waste\u003c\/b\u003e, and \u003cb\u003ehighly accurate fluxing\u003c\/b\u003e—making it an essential tool in \u003cb\u003ehigh-precision industrial fabrication and repair work\u003c\/b\u003e.\n\u003ch3\u003e\u003cb\u003ePerfect for\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAutomotive component manufacturing and repairs\u003c\/li\u003e\n\u003cli\u003eBrazing of copper and steel in HVAC systems\u003c\/li\u003e\n\u003cli\u003eElectrical connector assembly and transformer production\u003c\/li\u003e\n\u003cli\u003eMetal fabrication in workshops and light industrial plants\u003c\/li\u003e\n\u003cli\u003eBrazing with flame or induction heating systems\u003c\/li\u003e\n\u003cli\u003eProfessionals seeking water-mixable, paste-form brazing flux\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWater-Mixable Formula\u003c\/b\u003e – Easily converts to a brushable paste for precise application\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMulti-Metal Compatibility\u003c\/b\u003e – Suitable for steel, copper, copper alloys, nickel, and nickel alloys\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAnti-Oxidation Performance\u003c\/b\u003e – Maintains clean bonding surfaces during brazing\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSupports Flame \u0026amp; Induction Brazing\u003c\/b\u003e – Versatile for multiple heat sources and environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIndustrial-Grade Purity\u003c\/b\u003e – Consistent results for mission-critical metal joining\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIdeal for High-Temperature Applications\u003c\/b\u003e – Performs in demanding thermal cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConvenient 250g Jar\u003c\/b\u003e – Perfect for workshop or production-line usage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eStronger Joints\u003c\/b\u003e – Delivers clean, oxide-free brazing surfaces for improved bonding\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile Use Cases\u003c\/b\u003e – One flux for a wide range of metals and applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReduced Downtime\u003c\/b\u003e – Clean application means less post-brazing cleanup and rework\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMinimized Waste\u003c\/b\u003e – Paste application ensures only necessary flux is used\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eImproved Electrical Conductivity\u003c\/b\u003e – Ideal for connectors and electrical terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSupports Sustainability Goals\u003c\/b\u003e – Low-residue formula for cleaner production environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eUsage Tips\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMix with clean water\u003c\/b\u003e in a 1:1 or 2:1 ratio to create a paste for brush-on application\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApply directly\u003c\/b\u003e to cleaned metal surfaces before heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUse with silver brazing alloys\u003c\/b\u003e or other compatible fillers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRemove residue\u003c\/b\u003e with warm water post-brazing if necessary\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStore sealed\u003c\/b\u003e in a cool, dry area to maintain shelf life\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhat's in the box\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 x Brazetec Flux Powder D-21 (250g) \u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eDimensions (cm) \u0026amp; Gross Weight\u003c\/b\u003e\u003c\/h3\u003e\n9 x 9 x 11 (0.25kg)","brand":"Brazetec","offers":[{"title":"Default Title","offer_id":52383522816132,"sku":"BRFPJ\/250G","price":245.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/1680\/4228\/files\/brazetec.png?v=1782458736","url":"https:\/\/sirair.co.za\/products\/brazing-flux-powder-d-21-250g-steel-and-copper-brazetec","provider":"Sirair","version":"1.0","type":"link"}