Cobar selective soldering flux 327-SEL

A high-reliability selective flux, 327-SEL is designed specifically for selective soldering processes to have absolutely no corrosion on cured or uncured residues.

IPC J-STD-004 classification ROL0

Physical and chemical properties

SG @ 20 °C [kg/dm3] (+/- 0.5%) 0.840
Solids content [% w/w] 4.94
Halides [Silver-Chromate Test] Pass
Halides [Potentiometric] Pass
Acid number [mgKOH] (+/-2.5%) 19.70
Water content [% w/w] 5.
VOC-content [% w/w] 90.00
Filmformer(s) resin
Color colorless
Flashpoint COC [°C] 13.5
Telcordia/bellcore TR-NWT-000078/3 Compliant
Test report(s) Available
Certificate of Compliance Available
SPC-data* Auditable
Environmental Load Unit 6.00
RoHS-Compliance Certificate Available
User's Guidelines English
Packaging  
Bottle (HDPE) [liter] 1
Can (HDPE) [liter] 5, 10
Thinner 425-00
Shelf-life (Weeks)  
Storage 20 [°C] 52.
Storage 25 [°C] 40.

Fields of application

5 Especially made for this purpose
4 Generally qualified for this purpose
3 Generally usable, but not the best choice
2 Generally not usable for this purpose
1 Wrong choice
ISO 9454-1 1.2.3.A
IPC-ANSI-J-STD-004 ROL0
JIS Z 3197 1.2.3.N_I
No-Clean process 5
Post-solder cleaning 3
Wave Soldering 2
Pb-Free process - N² 5
Consumer electronics 3
Med-Rel electronics 4
Hi-Rel electronics 5
1-layer, video/tv boards 4
2-layer boards 5
Multi-layer boards 5
OSP compatible 5
Ni/Au compatible 5
Ni/Pd compatible 4
Ag compatible 4
Sn compatible 5
Bubble jet fluxing 5
Nozzle-spray fluxing 5
Template/dip fluxing 4
Hot bar soldering 5
Static solder-nozzle 5
Flow solder-nozzle 5
Short contact time with solder 5
Moderate preheat 4
Reduces spread of flux 3
Reduces solder balling 5
Reduces bridging 4
Cosmetic cleanliness 3
Cosmetic cleanliness N2 4
ICCT compatible 4
Conformal coating 5

*) Having a vapor pressure of >0.01 mm Hg @ 25°C
Industrial chemical product. Read MSDS before use.