NF1060-VF Soldering Flux
No-Clean, VOC-Free, Zero-Halogen Liquid Flux
Product Description
NF1060-VF is a new addition to Kester’s No-Clean, VOC-Free product line.
NF1060-VF is zero-halogen (none intentionally added) wave soldering ux that
maintains its soldering performance achieving excellent through-hole ll and low-
defect soldering of lead-free electronic circuit board assemblies.
Reliability Properties
Copper Mirror: Low
Per IPC-TM-650 Method 2.3.32
Copper Corrosion: Medium
Per IPC-TM-650 Method 2.6.15
Surface Insulation Resistance (SIR): Pass
Per IPC-TM-650 Method 2.6.3.7 [40°C, 90% RH, 12.5V, 7days]
Electrochemical Migration (ECM): Pass
Per IPC-TM-650 Method 2.6.14.1 [65°C, 90% RH, 100V, 25days]
Halogen Content: None Detected
Per IPC-TM-650 Method 2.3.38.1
Physical Properties
(Typical values listed)
Specic Gravity @ 25°C: 1.014
Acid Number: 41.7 mgKOH/gm
Solids Content (theoretical): 4.9%
pH (5% solution @ 25°C): 2.7
Performance Characteristics:
■ ORM0 per J-STD-004B
■ VOC-Free for lower VOC emissions
■ Zero-Halogen (none intentionally added)
■ Low solids content prevents clogging or buildup around
ux spray nozzles
■ No offensive odor
■ Minuscule, non-visible residue is non-conductive,
non-corrosive, and does not need to be removed
■ No surface insulation degradation
■ Chemically compatible with most solder masks & board
laminates
®
Global Headquarters: 800 West Thorndale Avenue, Itasca, IL USA 60143 ■ Phone: +1 800.2.KESTER ■ Fax: +1 630.616.4044
Asia-Pacific Headquarters: 61 Ubi Avenue 1 #06-01 UB Point, Singapore 408941 ■ Phone: +65 6.449.1133 ■ Fax: +65 6.242.9036
European Headquarters: Ganghofer Strasse 45, 82216 Gernlinden, Germany ■ Phone: +49 (0) 8142 4785 0 ■ Fax: +49 (0) 8142 4785 61
Asia Manufacturing: Hengqiao Road, Wujiang Economic Development Zone ■ Suzhou, Jiangsu Province, China 215200 ■ Phone: +86 512.82060807 ■ Fax: +86 512.8206 0808
■ Website: www.kester.com ■
Technical Data Sheet
RoHS Compliance
This product meets the requirements of the Restriction of Hazardous Substances (RoHS) Directive. Additional RoHS
information is located at https://www.kester.com/downloads/environmental.
Storage and Shelf Life
Because this formulation is water-based, it is subject to freezing. A minimum storage temperature of 4°C (40°F) is
recommended. If frozen, NF1060-VF is easily reconstituted by stirring at room temperature. Shelf-life 1 year from date of
manufacture when handled properly and held at 4-25°C (40-77°F).
Cleaning
NF1060-VF residues are non-conductive, non-corrosive, and do not require removal in most applications. If it is desired to
remove the residues, DI water in in-line or batch cleaner at 43-54°C (110-130°F) may be used. Contact Kester Technical
Support for additional assistance.
Process Considerations
The preheat board temperature should be less than 120°C (248°F). Dwell time in the wave is typically 3-5 seconds
for Sn63Pb37 and 4-8 seconds for lead-free alloys. The wave soldering conveyor speed should be adjusted to
accomplish proper contact time for the alloy in the solder pot then the heaters in the preheat section adjusted to meet the
requirements for the top side circuit board temperature.
Process Parameter Recommendations
Flux Application 155-233 µg/cm
2
of solids (1000-1500 µg/in
2
of solids)
Top-Side Preheat Temperature
1
110-115°C (230-239°F)
Bottom-Side Preheat Temperature 110-115°C (230-239°F)
Recommended Preheat Prole Straight ramp to top side board temperature
Solder Contact Time 4.5-6.5 seconds for Pb-free alloys
Solder Pot Temperature 260-270°C (500-518°F) for Pb-free alloys
1
Maximum top side temperature 115°C (239°F)
®
Application Notes
Global Headquarters: 800 West Thorndale Avenue, Itasca, IL USA 60143 ■ Phone: +1 800.2.KESTER ■ Fax: +1 630.616.4044
Asia-Pacific Headquarters: 61 Ubi Avenue 1 #06-01 UB Point, Singapore 408941 ■ Phone: +65 6.449.1133 ■ Fax: +65 6.242.9036
European Headquarters: Ganghofer Strasse 45, 82216 Gernlinden, Germany ■ Phone: +49 (0) 8142 4785 0 ■ Fax: +49 (0) 8142 4785 61
Asia Manufacturing: Hengqiao Road, Wujiang Economic Development Zone ■ Suzhou, Jiangsu Province, China 215200 ■ Phone: +86 512.82060807 ■ Fax: +86 512.8206 0808
■ Website: www.kester.com ■
Health and Safety
This product, during handling or use, may be hazardous to your health or the environment. Read the Safety Data Sheet
and warning label before using this product. Safety Data Sheets are available at https://www.kester.com/downloads/sds.
Flux Control
NF1060-VF is designed to be sprayed. Incoming solderability inspection of circuit boards and components is advisable as
part of process control to maintain consistent soldering results.