Highly Active Soldering Flux Colorless Liquid For Electronics 0.805 Special Gravity

Place of Origin China
Brand Name Wuxi Top Chemical
Certification ISO9001
Model Number X-5
Minimum Order Quantity 10 tons
Price Call/negotiable
Packaging Details 1 container
Delivery Time 5-8 days
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability 500 tons/month

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Product Details
Product Name No-clean Liquid Flux Appearance Colorless, Clear And Transparent
Solid Content (w/w)% 4.5±0.5 Acid Value (mg KOH/g) 21±3
Specific Gravity (g/ml) 0.805±0.008 Closed Flash Point 13℃
Advantage Highly Active Storage Time 12 Months
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highly active soldering flux liquid


soldering flux liquid 0.805 special gravity


colorless liquid flux for electronics

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Product Description

Electronic product flux  halogen-free  no-clean flux  colorless, transparent, and highly active flux​


1. Features and advantages
Halogen-free, high activity, medium solid content, no cleaning required, saving operating costs.
Some special activators added in X-5 flux are used to reduce the surface tension between the solder mask and the solder, which greatly reduces the production of solder balls.
The thermally stable activator in the medium solid content no-clean flux reduces the incidence of continuous welding defects in wave soldering and selective soldering.
Very few residues, no corrosive residues, no stickiness on the plate surface after cooling, suitable for needle testing.


2.Common tin point problems and treatment

Cause of defect 1 2 3 4 5 6 7 8 9 10
Duoxi Webbing          
Tin Cave Viods                  
Coarse tin Graing                  
Short circuit Shorts              

Note: √ represents the possible cause
1. The flux is in poor contact with the bottom plate; the contact angle of the bottom plate solder is improper
2. The flux density is too high or too low
3. The speed of the conveyor belt is too fast or too slow. If it is too fast, it will be sharp and shiny; if it is too slow, it will be slightly round and thick.
4. Too much anti-oxidation oil or deterioration in the tin furnace
5. The preheating temperature is too high or too low
6. The temperature of the tin furnace is too high or too low, if it is too high, it will be slightly round and stubby, and if it is too low, it will be sharp and shiny.
7, the tin furnace wave crest is unstable
8. The solder in the tin furnace contains impurities
9. Poor wiring direction and arrangement of components
10. Improper handling of the leads of the original bottom plate


3. Technical indicators

Parameter Typical Value Parameter Typical Value
Appearance characteristics colorless, clear and transparent Insulation resistance (85℃/85%RH) >1×108Ω
Solid content (w/w)% 4.5±0.5 Acid value (mg KOH/g) 21±3
Specific gravity (g/ml) 0.805±0.008 Silver Chromate Paper Test Pass
Cl- content (W/W)% not detected Recommended thinner X-C thinner
Closed flash point 13℃ Storage time 12 months


 4.  No-clean flux picture                                                                                                                                                         

Highly Active Soldering Flux Colorless Liquid For Electronics 0.805 Special Gravity 0