Lead Free Soldering Flux

Lead Free Soldering Flux

Features

1. Lead-free soldering flux is suitable for foaming, spraying and dip soldering.

2. LC-700 series liquid flux has four models-LC-700, LC-701, LC-702 and LC-HF700. All four pass silver chromate test, copper mirror test and copper plate corrosion test.

3. It is characteristic of little smell, optimized mechanism property, less residues and high impedance.

4.  Besides, this lead-free soldering flux conforms to the demands of ROHS and REACH.

5. The surface insulation resistance is beyond 1 × 1010 and halogen content is less than 0.01 % excluding LC-HF700 that has no halogen at all.

6.  It is widely suitable for lead-free automatic wave soldering and hand dip welding. Generally, the flux is extensively applied in dual and multi-line circuit board and PCB boards of electronic, computer, telecommunication and household appliance.

 



Parameters of LC-700 Series Lead-Free Soldering Flux

         Code

 

Item

 

LC-700

 

LC-701

 

LC-702

 

LC-HF700

Appearance

Brownish Red Liquid

Colorless or Orange Liquid

Colorless or Orange Liquid

Orange Liquid

Solids Content (%)

4.0 ± 0.3

2.0 ± 0.1

1.5 ± 0.5

5.0 ± 0.5

Specific Gravity (25℃)

0.812 ± 0.01

0.798 ± 0.01

0.798 ± 0.01

0.8 ± 0.01

Acid Value (KOH/g)

25 ± 0.4

21 ± 0.4

19 ± 0.4

23 ± 0.4

Halogen Content (%)

 

< 0.01

< 0.01

< 0.01

0

Silver Chromate Test

Pass

Pass

Pass

Pass

Copper Mirror Test

Pass

Pass

Pass

Pass

Copper Plate Corrosion Test

Pass

Pass

Pass

Pass

Surface Insulation Resistance (SIR)

> 1 × 1010

> 1 × 1010

> 1 × 1010

> 1 × 1010

Electro-migration

Pass

Pass

Pass

Pass

Note:

1. Condition for SIR test: 40℃, 95%RH, 96h.

2. Condition for electro-migration test: 65℃, 85%RH.

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