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 × 10¹⁰and 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.