High Activity Active Flux For Pcb Soldering Halogen Free For Wave Soldering

Place of Origin China
Brand Name Wuxi Top Chemical
Certification ISO9001
Model Number NS319
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
Appearance Ight Yellow, Clear And Transparent Liquid Product Name Rosin Type Liquid Flux
Solid Content (w/w)% 5.0±0.5 Acid Value (mg KOH/g) 25±3
Specific Gravity (g/ml) 0.805±0.008 Closed Flash Point 14℃
Silver Chromate Paper Test Passed Advantage Environmental Friendly
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high activity flux for pcb soldering


flux for pcb soldering halogen free


active flux soldering for wave soldering

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Product Description

Flux for wave soldering medium solid content high activity flux halogen-free environmentally friendly flux​


1.  Introduction
◆ NS319 no-clean flux is a no-clean flux with medium solid content (5.0% solid content), halogen-free and high activity. It can be used in foaming, spraying and other forms.

Resin active system has excellent wettability on the surface of bare copper and solder layer.
The welding of multi-layer boards with metallized small holes will show excellent penetration performance.
There are very few residues on the PCB surface after soldering, and the solder joints are uniform and bright and full and can be tested without cleaning.

2.  Features and advantages
Halogen-free, high activity, medium solid content, no cleaning required, saving operating costs.
Some special activators added in NS319 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 active agent in the medium solid content no-clean flux reduces the incidence of continuous welding defects in wave soldering and selective soldering.
Very few residues, low corrosive residues, and low viscosity on the plate surface after cooling, suitable for needle testing.


3. Technical indicators

Parameter Typical Value Parameter Typical Value
Appearance light yellow, clear and transparent liquid Insulation resistance (85℃/85%RH) >1×108Ω
Solid content (w/w)% 5.0±0.5 Acid value (mg KOH/g) 25±3
Specific gravity (g/ml) 0.805±0.008 Silver chromate paper test passed
Cl- content (W/W)% not detected Suggested thinner FD5050 thinner
Closed flash point 14℃ Storage time 12 months

4.Rosin type liquid flux picture

High Activity Active Flux For Pcb Soldering Halogen Free For Wave Soldering 0