Relife RL-403S Solder Paste Sn63 Pb37 High-Performance Soldering Paste is a premium-quality soldering material designed for precise electronics assembly and professional repair work. With a fine particle structure and strong viscosity, it delivers smooth solder flow, excellent conductivity, and reliable bonding, making it ideal for PCB, SMD, and micro-soldering applications.
Its tin-lead alloy composition ensures stable melting at low temperature, helping technicians achieve clean and strong solder joints with minimal effort.
Key Features
Convenient Syringe Packaging: Supplied in a syringe-type tube with a suitable needle tip for accurate application, reducing solder waste and improving work efficiency.
Ultra-Fine Particle Size: Fine solder particles (20–38 microns) ensure precise placement and smooth soldering on small pads and components.
Excellent Wettability: Maintains surface wetness even after 36 hours of opening, ensuring consistent soldering quality without affecting performance.
Strong Adhesion & Bright Solder Joints: Provides high activity and strong bonding with bright, full tin joints and excellent mechanical strength.
Long Storage Life: When stored in refrigerated conditions, the paste remains usable for over 12 months without drying.
Professional Sn63/Pb37 Alloy: Classic tin-lead composition offers stable performance and low melting point, ideal for precision electronics soldering.
Specifications
Brand: Relife
Model: RL-403S
Alloy Composition: Sn63 / Pb37 (Tin-Lead)
Melting Temperature: 183°C
Particle Size: 20–38 μm
Volume: 10 cc
Recommended Storage Temperature: 0–10°C
Packaging: Syringe with needle tip
Package Includes
1 × Relife RL-403S Solder Paste (10cc Syringe)