Scan the QR code for technical support.
KEY-305 Halogen-Free, No-Clean, Lead-Free Flux
Product Highlights
| Lead-free and environmentally friendly formula | Halogen-free ingredients | No cleaning required |
| Good wettability | Wide applicability | Low smoke, non-irritating |
Low smoke, non-irritating
- KEY-305 halogen-free, no-clean, lead-free flux offers excellent solderability, producing full, bright solder joints with good solder penetration and uniform tin application. It meets the soldering requirements of various lead-free solders and is an ideal no-clean flux for use with lead-free solders.
- It effectively reduces the surface tension of lead-free solder, improving its fluidity and solderability.
- It has strong wetting power and good tin penetration through holes, which can effectively make up for the poor tin penetration of lead-free solder.
- The weld residue is evenly spread, has a good finish, and exhibits superior electrical reliability.
- It does not contain RoHS or other prohibited substances and is an environmentally friendly flux.
Scope of application
This product is compatible with various lead-free solders and is widely used in the electronics industry, including power supplies, computer motherboards, graphics cards, communication equipment, audio-visual equipment, refrigeration equipment, and medical equipment. It can be applied using spraying, dipping, and foaming processes.
Physicochemical parameters
Flux type | KEY-305 |
Flux Classification | REL0 |
Appearance | pale yellow transparent liquid |
Non-volatile content (wt%) | 7.00±0.80 |
Density(g/cm3@20℃) | 0.823±0.010 |
Acid value (mg KOH/g) | 30.00±5.00 |
Expansion rate (mm2) | ≥90 |
Silver chromate test paper test | PASS |
Halogen content（%) | L0 |
Corrosion of bronze mirrors | PASS |
Corrosion test | PASS |
Surface insulation resistance (Ω) | ≥10×108 |
Electromigration | PASS |
RoHS | PASS |
Precautions
After opening and taking out the portion to use, the cap must be tightly closed to prevent solvent evaporation and changes in specific gravity.
Used flux should not be stored in the same container as unused flux. After opening the flux container, if there is any flux remaining, it should not be left exposed to air; the cap should be tightened as soon as possible.
The container for flux must be kept clean to prevent dirt and other substances from mixing into the flux and affecting its quality.
For electronic products with special requirements, it is recommended to conduct relevant compatibility tests.
For safety precautions and other details, please refer to the product's MSDS.
Packaging specifications
18 L、20 L、50 L、100 L、150 L、200 L、
Storage and Transportation
Hazardous chemicals, transported by specific vehicles.
Store in a cool, dry place away from light and heat, and in an airtight container.
Shelf life is 12 months when sealed.
Single packages must not be stacked more than two layers, and the bottom layer must be secured with a non-slip tray to prevent squeezing, deformation, or tipping.
WeChat official account
