flux cored solder wire for flame base material in thailand

In Thailand, flux-cored solder wire suitable for flame/torch heating on various base materials (copper, brass, steel) is readily available, with options ranging from soft soldering (tin-based) to high-temperature brazing (silver/phos-copper).

Key Product Options and Brands in Thailand

• Soft Soldering (Copper/Brass – Flame Applicable):
  • Nihon Superior SN100C (031): A popular lead-free flux-cored wire for high-speed, general-purpose soldering, known for excellent wetting.
  • Almit KR-19 Series: Known for high-reliability rosin-core, including RMA types suitable for manual torch heating.
  • Kester 275: A flux-cored wire designed to reduce spattering, suitable for both lead-bearing and lead-free applications, widely available via electronics suppliers.
• Silver Brazing/Hard Soldering (Higher Temp Flame):
  • Kovet Silver Brazing Flux/Rods (KV-509): Offers a wide active temperature range for brazing copper-based alloys, nickel, and steel using a flame.
  • TRUSCO Silver Brazing Rods (40% Silver): Suitable for steel, brass, and copper, designed for high heat resistance.
  • Weldmaxx-Ag (Udomsawat Group): Offers silver brazing alloys (0% to 56% silver) specifically for refrigerator, brass, and copper pipe applications.
• Flux-Cored Welding/Brazing (Ferrous/Stainless):
  • Yawata Flux-Cored Wire: Offers self-shielded (71T-1) and stainless steel options (308LT1, 309LT1) for structural and industrial applications.
  • General Purpose Flux Core 0.8mm: Readily available on platforms like Lazada for stainless steel and steel, ideal for repair work. 

Where to Buy in Thailand

• MISUMI Thailand: Stocks a wide range of Almit, Nihon Superior, Trusco, and Ishikawa metal wires.
• Lazada/Shopee Thailand: Various vendors for silver solder wire, brazing flux, and aluminum welding wires.
• TREND Electronics (Thailand): Supplier of Koki and other high-reliability solder materials.
• Udomsawat Group: Specialist in brazing alloys. 

Tips for Selecting Wire

• For copper-to-copper, a 0% to 15% silver phos-copper rod is sufficient (often used without extra flux).
• For copper-to-brass or brass-to-steel, use a flux-coated or flux-cored silver alloy (e.g., 15%–45% silver).
• For electronics or low-temp repairs, use rosin-core tin/lead (Sn60/Pb40) or lead-free (Sn/Ag/Cu) wire.