Bismuth Solder Paste Syringe Mechanic WQ-80-BS458 40 grams

Bismuth Solder Paste Syringe Mechanic WQ-80-BS458 40gr

This bismuth solder paste syringe is an advanced solution for electronic soldering, specially designed for jobs that require a low melting point and high precision. With an Sn42Bi58 composition, this paste delivers optimum performance without the need for cleaning after application.

Main features:

• Lead-free solder paste, environmentally friendly and suitable for current regulations.
• Composition: 42% tin (Sn) and 58% bismuth (Bi), providing a very low melting point of 138-140 ºC.
• Particle size between 25 and 45 micrometres, ideal for precise applications on small components.
• 40 grams capacity in syringe format for comfortable, controlled handling.
• Requires refrigerator storage to maintain its effectiveness and properties.

Typical uses and compatibility:

This paste is especially useful for soldering SMD electronic components and for jobs that require a low melting point, such as repairing LED strips or other heat-sensitive devices. Its lead-free formula makes it suitable for personal projects and repairs, although not for commercial production requiring ROHS certification.

Differences between Mechanic solder paste types:

• WQ86-50GR-Sn42Bi58: Very low melting point (138-140 ºC), ideal for desoldering SMD ICs and delicate work.
• XG-50 Sn63/Pb37: Traditional leaded paste, medium melting point (185-190 ºC), not suitable for commercial production due to legal restrictions.
• BST-705 sn99cu07ag03: Lead-free alloy for ROHS compliance, high melting point (235-240 ºC), used in modern electronic boards.

Using this bismuth syringe helps reduce the melting point in solder joints, making it easier to repair and assemble delicate components without damaging boards or devices.

Storage and use recommendations:

• Store in the refrigerator to preserve its properties.
• Use in suitable environments to avoid contamination of the paste.
• Ideal for technicians and hobbyists looking for clean, efficient solder joints with no residue.

In short, the Mechanic WQ-80-BS458 bismuth solder paste syringe is a specialised product for high-quality soldering with a low melting point, perfect for delicate electronic work and precise repairs.

• Lead-free solder paste with Sn42Bi58 composition
• Very low melting point: 138-140 ºC, ideal for sensitive components
• Particle size between 25-45 um for precise soldering
• 40 gram syringe format for easy application
• No cleaning required after soldering
• Requires refrigerator storage to maintain properties
• Perfect for soldering SMD components and LED strips
• Comparison with other pastes: low melting point and lead-free