|
Amerway #825 No-Clean Solder Flux Technical Data Bulletin
Technical Data Sheet
| Description: |
| Amerway 825 No-Clean Low Residue Flux is specially formulated low solids
flux free of any halides, rosin or resin. This flux was designed for soldering high quality
electronic printed circuit boards such as, through hole, mixed technology, and surface
mount assemblies while eliminating the need of a post cleaning process. Amerway 825
No-Clean Flux features enhanced foaming properties as well as increased activity and
low odor. |
| Application: |
|
| Amerway 825 No-Clean Flux may be applied by foam, spray or wave application.
The topside board preheat temperature recommended is 180-220ºF. For obtaining the
best soldering results use the following guidelines: |
| |
-Maintain a consistent foam-head by narrowing of the flux chimney or the use of
dual flux stones. |
| |
-Add fresh flux to maintain proper flux level. |
| |
-Regularly clean the fluxing equipment. Never leave foam stone in flux when
pressure is not stones. |
| |
-Clean fluxing stone in flux thinner. |
| |
-When foam fluxing, flux can be maintain by monitoring the specific gravity,
however, control by checking acid number determination is recommended. |
| |
-Add flux thinner when needed. |
| Benefits: |
|
| |
- Excellent surface wetting |
| |
- Eliminates the need for post soldering cleaning. |
| |
- Increased activity. |
| |
-May be conformal coated without post-cleaning. |
| |
-Conforms to Bellcore Specification TR-NWT-000078, Issue 3, December 1991. |
| |
-Conforms to the Joint Industry Standard ANSI/J-Str-004, Type M/LO. |
| Properties: |
|
|
| |
Specific Gravity @ 25 C |
0.8105 |
| |
Pounds / Gallon |
6.75 |
| |
Color |
Water white & clear |
| |
Halide Content |
None |
| |
Acid Number |
25.0 |
| |
Fluoride Test |
Passed |
| |
Silver Chromate Paper Test |
Passed |
| |
Solid Content |
2.0 |
| |
Flash Point |
58ºF TCC |
| |
Copper Mirror Corrosion Test |
Passed |
| Surface Insulation Resistance: |
|
| |
7 days @ 85ºC/ 85%RH |
|
| |
Minimum Requirements |
1.0 x 10³ Ohms |
| |
Uncleaned |
4.2 x 10¹² Ohms |
| |
Cleaned DI water @150ºF |
4.2 x 10¹² Ohms |
| Bellcore Specification Tests TR-NWT-000078: |
| |
Test Pattern: |
Standard Bellcore test pattern, 0.025 inch wide lines,
0.050 inch spacing. |
| |
Environment: |
35 C, 90% relative humidity |
| |
Bias Voltage: |
45-50 volts D.C. |
| |
Test Voltage: |
100 volts D.C. |
| |
Boards |
Initial Reading |
Final Reading |
| |
Control |
8.21 x 10^12 |
9.45 x 10^12 |
| |
Pattern Face Up |
7.45 x 10^12 |
3.41 x 10^12 |
| |
Pattern Face Down |
7.15 x 10^12 |
4.12. x 10^12 |
| Electromigration Resistance Test: |
|
| |
Test Pattern: IPC-B-25 test pattern, 0.0125 inch space,
0.0125 inch wide lines. |
| |
Environment: 85 C, 85% Relative Humidity |
| |
Bias Voltage: 45-50 Volts D.C. |
| |
Test Voltage: 100 volts D.C. |
| |
Conditioning Potential: 0 |
|
| |
Initial Reading: |
96 hours |
| |
Final Reading: |
500 hours |
| Boards |
Initial Reading |
Final Reading |
| Control |
4.91 x 10^11 |
5.23 x 10^11 |
| Pattern Face Up |
5.60 x 10^11 |
8.21 x 10^11 |
| Pattern Face Down |
7.12 x 10^11 |
8.11 x 10^11 |
Visual Examination: No evidence of dendrites or corrosion when viewed at 10 X
magnification.
| Safety and precautions: |
| Flammable liquids should be stored in a dry, well ventilated area away from open flames,
sparks or direct heat. As with all Amerway products, a Materials Safety Data Sheet is
available. |
| Packaging: |
| Amerway 825 No-Clean Soldering Flux is available in 1 gallon containers, 5
gallon containers and 55 gallon drums. |
| Disclaimer: |
The information contained herein is based on data considered accurate and is
intended for use by persons having technical skills, at their own discretion and risk.
Since conditions of use are outside of Amerway’s control, we can assume no liability for
results obtained or damages incurred through the application or the data presented, nor
can we assure customers of liability. |
|
