Loctite GC 3W is the first ever temperature stable water wash solder paste
Loctite GC 3W is a water-washable, halogen free, Pb-free solder paste specially formulated to provide excellent humidity resistance. This innovative product shows excellent solderability when reflowed in both air and nitrogen across a wide range of surface finishes including ENIG, Silver and OSP-Cu. The solder paste is suitable for fine pitch, high speed printing up to 150mm/s. It has a Halogen-free classification IPC-TM-650 2.3.34/EN14582. It has a long printer open and abandon time.
- Formulated to be cleanable with deionized water
- Water washable, Pb-free solder paste
- Halogen-free flux classification: IPC-TM-650 2.3.34/EN14582
- Suitable for fine pitch, high speed printing up to 150mm/s
- Excellent resistance to solder balling, initially and after exposure to humidity
- Humidity resistance: excellent coalescence after 24 hours exposure to 25°C/80%RH
- Long printer open and abandon time
Loctite GC 3W The Game Changer can be printed at speeds up to 150mm/s using typical stencils and metal squeegees. Sufficient pressure needs to be applied to achieve a clean wife of the stencil topside surface. Under laboratory conditions, acceptable print quality on 0.5mm ball devices and 0.4 mm QFP patterns has been achieved after printer down times of 2 hours without requiring a knead cycle. The Solder Paste has a Malcom viscosity of 150 at 25°C and a speed of 10 rpm. Metal content of the type 4 powder is 89.5%.
Loctite GC 3W Solder Paste – The Game Changer Resources
Loctite GC 3W The Game Changer – Compare Product Performance
|Attributes||Current Technology||Loctite GC 3w|
|Regulatory Compliance||Halide/Halogen Containing||Zero Halogens Added|
|Performance Stable at 40°C||1 Day||1 Month|
|Abandon Time||< 2 Hours||> 4 Hours|
|On-line Paste Utilization||75%||>95%|
|Start-up Time||4-25 Hours||0 Hours|
|Stencil Life||< 4 Hours||> 8 Hours|
|Soak Temperature (Reflow)||150-180°C||150-180°C|
|Slump Performance||< 10%||< 10%|
|Voiding Performance||0.3 mm||0.2 mm|
Loctite GC 3W Reflow Process:
Reflow has been assessed using a typical convection reflow oven
Optimal aerobic reflow ca be achieved by ramping to a peak temperature of 225 to 250°C at 0.8 to 1.5°C/Minute (mean ramp rate) and with a soak above the reflow temperature (217°C) for 20 to 50 seconds.
Reflow sol can also be carried out in a nitrogen atmosphere.
Loctite GC 3W Cleaning:
The post-soldering residues of Loctite GC 3W solder paste must be removed by cleaning.
Cleaning can be performed using in air spray under immersion or ultrasonic cleaning methods.
The post-soldering residues are designed to be cleaned in an aqueous cleaner.
Before handling the material, it is strongly recommended that you read and understand the Loctite GC 3W MSDS. When tightly sealed in its original container at room temperature, the material will have a shelf life of 180 days. Optimal storage temperature is 25°C with a plus or minus of 1.5°C. Once material is removed from the container it is strongly recommended not to return it. The material may have been contaminated during use. For more information on the safe handling of this material, contact Krayden, an authorized distributor of Loctite.