RUKO LOS-HM-24.0mm Flux-Cored Solder Stick, 250 g, Halogen-Free, Rosin Mildly Activated, 24 mm Diameter

Electrical engineers and cable assembly technicians rely on this RUKO flux-cored solder stick for reliable joints in both leaded and lead-free soldering processes. The 24.0 mm diameter solid stick with rosin mildly activated flux delivers excellent wetting and leaves a transparent, non-corrosive residue that requires no cleaning for most applications.

Key specifications

• Flux type: Rosin Mildly Activated (ROM1 / F-SW 32)
• Halogen content: Halogen-free (<0.05% halides)
• Diameter: 24.0 mm
• Net weight: 250 g
• Form factor: Solid stick / paste
• Residue type: Non-corrosive, transparent
• Cleaning requirement: No-clean for most applications
• Standard compliance: DIN EN 29454-1 (1.1.3.C), J-STD-004 (ROM1)
• Activity level: Low to medium
• Storage temperature: 5°C to 30°C
• Shelf life: 24 months
• Color: Amber/Yellowish
• Odor: Mild, characteristic rosin odor
• Packaging: Stick/Rod
• Wetting properties: Excellent
• Smoke development: Low
• Electrical reliability: High

Why choose it

This solder stick combines a mild activation level with halogen-free flux, ensuring high electrical reliability and low smoke development. Its compatibility with both leaded and lead-free solders makes it a versatile choice for general soldering tasks.

Ideal use cases

• Electrical engineering
• Cable assembly
• General soldering

Good to know

Store between 5°C and 30°C to maintain flux activity and shelf life of 24 months. The transparent residue is non-corrosive and typically does not require cleaning.