Import Brazing Flux (Soft Solder Flux) — Buy in wholesale FOB from Supplier in China

Horizon Industrial Limited manufactures brazing flux for silver brazing operations from its base in Kaihua, Zhejiang Province, China. The flux is formulated for work subjected to rapid, localized heating, assisting heat conduction across the joint interface while chemically removing oxide layers from base metal surfaces. It also reduces surface tension of molten filler metal, clears oil contamination from soldered surfaces, enlarges the effective brazing area, and prevents re-oxidation during the heating cycle. The product is offered in powder, paste, and liquid physical forms to suit manual, automatic, and induction brazing setups.

The composition is not fully disclosed, but silver-brazing fluxes typically contain potassium borofluoride, potassium fluoride, and boric acid or borate compounds as active constituents. These ingredients melt below the brazing temperature to form a protective slag that dissolves oxides on steel, stainless steel, copper, and brass. Powder form allows dry application and easy metering in automated systems. Paste form, mixed with water or alcohol carrier, adheres to vertical or overhead joints. Liquid form suits dipping or spraying in high-volume production. Standard industry practice requires the flux residue to be removed after brazing to prevent corrosion, especially on stainless steel applications.

Buyers include HVAC manufacturers, automotive heat exchanger producers, tool makers, and plumbing fitting companies. The flux is classified as soft solder flux in the listing title, though the description specifies silver brazing use, so confirm the intended operating temperature range with Horizon Industrial Limited. Packaging sizes, MOQ, and shelf life are not stated. Lead times and Incoterms should be confirmed directly, as the 0.00 percent response rate suggests limited active engagement.

Horizon Industrial Limited is located at Yinchuan Road 19, Kaihua Industrial Area, Kaihua, Zhejiang, 321000, China. The companys trust tier is listed as harbor, with a response rate of 0.00 percent and zero average response hours. These signals indicate the profile may be dormant or newly created, so buyers should not assume immediate availability. The address places the supplier in a county-level industrial zone in western Zhejiang, a province with established chemical and metallurgical processing infrastructure.

The listing does not state establishment year, employee count, R and D capability, ISO certifications, export licence status, or client references. There is no mention of in-house laboratory testing for flux activity, pH stability, or batch consistency. Buyers should verify whether Horizon Industrial Limited is the manufacturer or a trading intermediary, and whether it holds hazardous-chemical production and export permits under Chinese regulations. The product description focuses on functional benefits rather than quantitative specifications, so technical datasheets must be requested directly.