Paste
Electroloy’s Lead-Free Solder Pastes are developed to offer manufacturers the benefit of using one solder paste on a variety of PCBs, under various printing, placement and reflow conditions.
Our solder paste were manufactured under strict process & controlled environment, resulting in very consistent & quality solder paste.
We offer low – mid temperature range of solder paste in different flux type & particle size. We provide good technical support in your use of Electroloy’s solder paste.
| Alloy Code | Type of Paste Flux | Alloy Composition | Attributes | Download | |
|---|---|---|---|---|---|
| LF-302P | No clean EM#233 |
Sn42 / Bi58 | For low temperature application. Provide excellent activation & leaves low post-processing residue. Good for step soldering applications. |
||
| LF-307P | No clean EM#252 |
Sn96.5 / Ag3.0 / Cu0.5 | Good wetting, good printing on PCB, no corrosion & minimal solder balling after reflow. | ||
| LF-315P | No clean EM#253 |
Sn99 / Ag0.3 / Cu0.7 | Good wetting, good printing on PCB, no corrosion & minimal solder balling after reflow. | ||
EMCO #233-302P
Electroloy’s EMCO #233-302P Lead Free Low Temperature solder paste is specifically design with a rosin base paste flux for lead free solder processes. This paste offers an excellent repeatability & consistency as well as exceptional wetting capabilities for low temperature applications.
|
Attributes
|
![]() Ball Test |
![]() Wetting Test |
| Item | Characteristics |
|---|---|
| Viscosity value | 150,000 ± 30,000 cp |
| Flux Activity (per IPC J-STD-004) | ROL1 |
| Corrosion of copper plate | Pass |
| Flux content | 9.5 ± 0.5% |
| Wetting test | Pass |
| Solder ball test | Pass |
| Typical Tackiness (gf) | 30.6 |
| Slump Test | Pass |
| Typical SIR, at 168 hours (per IPC J-STD-004) | Pass (>1 X 1010 Ω) |
EMCO #252-307P
Electroloy’s EMCO #252-307P No Clean Solder Paste is a rosin based solder paste with a wide print process window and extremely long abandon and open time. The soft non-stick residues improve reliability of in-circuit testing and reduce the frequency of test probes cleaning.
|
Attributes
|
![]() Ball Test |
![]() Wetting Test |
| Item | Characteristics |
|---|---|
| Viscosity value | 200,000 ± 30,000 cp |
| Flux Activity (per IPC J-STD-004) | ROL0 |
| Corrosion of copper plate | Pass |
| Flux content | 11.0 ± 0.5% |
| Wetting test | Pass |
| Solder ball test | Pass |
| Typical Tackiness (gf) | 32.5 |
| Slump Test | Pass |
| Typical SIR, at 168 hours (per IPC J-STD-004) | Pass (>1 X 1010 Ω) |
EMCO #253-315P
Electroloy’s EMCO #253-315P No Clean Solder Paste is a rosin based solder paste with a wide print process window and extremely long abandon and open time. The soft non-stick residues improve reliability of in-circuit testing and reduce the frequency of test probes cleaning.
|
Attributes
|
![]() Ball Test |
![]() Wetting Test |
| Item | Characteristics |
|---|---|
| Viscosity value | 180,000 ± 30,000 cp |
| Flux Activity(per IPC J-STD-004) | ROL0 |
| Corrosion of copper plate | Pass |
| Flux content | 11.5± 0.5% |
| Wetting test | Pass |
| Solder ball test | Pass |
| Typical Tackiness (gf) | 38.4 |
| Slump Test | Pass |
| Typical SIR, at 168 hours (per IPC J-STD-004) | Pass (>1 X 1010 Ω) |







