AMTECH Solder Paste 4300

AMTECH Solder Paste 4300

High-Performance Solder Paste for Precision Electronic Assembly

  • Leaded soldering
  • Lead solder paste
  • Excellent wetting properties
AMTECH Solder Paste 4300

Is a REL0-classified, water-washable paste approved by Tier I military and avionic OEMs. It delivers excellent print definition at speeds up to 100 mm/sec, with low voiding (even on LGA components), minimal mid-chip beading, and a clear, easy-to-clean residue. REACH compliant and compatible with enclosed print heads, it’s available in both print and dispense grades for versatile, high-reliability assembly.

COMPATIBLE ALLOYS
ALLOY TEMPERATURE °C TEMPERATURE °F
63Sn/37Pb 183 361
62Sn/36Pb/2Ag 179 354
62.8Sn/36.8Pb/0.4Ag 179–183 354–361
60Sn/40Pb 183–191 361–376
43Sn/43Pb/14Bi 144–163 291–325

TEST RESULTS
TEST J-STD-004 OR OTHER REQUIREMENTS (AS STATED) TEST REQUIREMENT RESULT
Copper Mirror IPC-TM-650: 2.3.32 L: No breakthrough
Corrosion IPC-TM-650: 2.6.15 L: No corrosion
Quantitative Halides IPC-TM-650: 2.3.28.1 L: <0.05%
Electrochemical Migration IPC-TM-650: 2.6.14.1 L: <1 decade drop (no clean)
Surface Insulation Resistance
85°C, 85% RH @ 168 Hours
IPC-TM-650: 2.6.3.7 L: ≥100 MΩ (No-clean)
Tack Value IPC-TM-650: 2.4.44 37g
Viscosity – Malcom @ 10 RPM / 25°C
(x10³ mPa/s) – Sn63/Pb37 T3/T4
IPC-TM-650: 2.4.34.4 Print: 200–275
Dispensing: 100–140
Visual IPC-TM-650: 3.4.2.5 Clear and free from precipitation
Conflict Minerals Compliance Electronic Industry Citizenship Coalition (EICC) Compliant
REACH Compliance Articles 33 and 67 of regulation (EC) No 1907/2006 Contains no substance >0.1% w/w listed as SVHC or restricted for use in solder materials

AMTECH™ solder pastes are advanced, high-performance materials engineered for precise and dependable electronic assembly. Produced in Deep River, Connecticut, USA, these solder pastes are formulated to deliver excellent printability, reliable reflow characteristics, and minimal voiding. Widely used in SMT manufacturing, AMTECH™ solder pastes provide consistent, high-quality solder joints, making them ideal for complex PCB designs and critical applications where reliability and performance matter most.

Benefits

  • Enables precise, consistent solder deposition for high-density PCB designs
  • Supports automated manufacturing with excellent printability and reflow characteristics
  • Enhances joint reliability for leaded applications
  • Reduces defects like bridging, voiding, and tombstoning
  • Compatible with various application methods including stencil printing and dispensing