Very easy, thin flowing soft solder with low melting point.
High tensile- and shear strength.
Suitable for delicate work, using a soldering iron or soft flame.
Applicable on stainless steel, steel, copper, zinc, lead, nickel, cast iron, galvanised steel.
Joints in cooling installations, jewellery industry, musical instruments, bird cages, radiators.
The aggressive flux in the core makes Lastek 3204IS not suitable for electronic applications.
Melting temperature: 183 - 188 °C (360 - 370 °F).
To obtain maximal strength, soldering gap has to be between 0.08 to 0.15 mm.
Degrease the pieces to be joined. Slightly preheat with a soft flame. Melt the solder by striking the solder along the gap.
Can also be used with a soldering iron: when the solder is pressed on the iron to melt it, the flux could become inactive; so apply the solder on the parent metal and press the soldering iron on the solder and the joint.
Remove flux residues with hot water.
Work in a well-ventilated area.