Borax flux 500 g for brass soldering and welding, fluoride-free fine crystalline powder, purity 99.9%, for removing oxides and impurities, for soldering baths and hard solders
Product code: AGT-121
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Product description
Borax Flux 500 g is a high-quality agent designed for brazing and soldering with brass alloys, effectively removing oxides and surface contaminants from metals.
Advantages and Unique Features
- High chemical purity – minimum 99.9% main ingredient
- Fine crystalline form for easy application
- Fluoride-free – safe for users and materials
- Soluble in hot water
- Complies with PN-EN ISO 18496 / FH21 standard
Properties and Applications
- Chemical activity: effectively removes oxides and impurities from metal surfaces before soldering
- Material compatibility: safe for use with most brass alloys
- Application methods: suitable for solder baths, direct use or as a dissolved solution
- Thermal resistance: suitable for high-temperature operations (melting point 741°C)
Technical Specifications
| Parameter | Value |
|---|---|
| Appearance | White fine crystalline powder |
| Density (20°C) | 1.719 g/cm³ |
| Melting point | 741°C |
| Granulation +1.18 mm | max. 4% |
| Granulation -0.06 mm | max. 4% |
| Main ingredient content | min. 99.90% |
| Boron oxide content | ~37% |
| Sodium oxide content | ~16.5% |
| Chloride content | max. 70 mg/kg |
| Sulfate content | max. 135 mg/kg |
| Iron content | max. 10 mg/kg |
| Shelf life | 3 years |
| Solubility in hot water | Yes |
Storage Recommendations
Store the product in tightly closed containers, in a dry, cool, and well-ventilated area at 5–25°C. Avoid contact with oxidizing agents.
Product safety
Manufacturer
AG TermoPasty
ul. Kolejowa 33E
18-218 Sokoły, Poland
Responsible person in the EU
AG TermoPasty
ul. Kolejowa 33E
18-218 Sokoły, Poland
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