Castolin 1802 HF Flux

Properties

• Highly active and fast-reacting flux based on boron compounds and fluorides. Free of boric acid.
• Suitable for brazing with silver brazing alloys in the atmosphere. Preferred heating method: induction. Temperature stable.

Technical Data

Specification | Details
Standard | DIN EN 1045: FH 10
Type | Powder
Color | White
Effective Temperature Range | 450°C – 850°C
Density | 1.4 g/cm³
pH | 8 – 10
Storage | Dry, 5°C – 30°C
Flux Residues | Corrosive, water-soluble

Application Area

• Suitable for brazing copper, brass, bronze, steel, including stainless steel, hard metals, as well as nickel and nickel alloys.
• Not suitable for aluminum-containing copper materials.
• For low and high melting silver brazing alloys such as Castolin 181, 1655, 1666, 1701, 1703, and 1800.
• Extended service life with low-melting, high-silver content brazing alloys.

Processing Instructions

• Flux residues are corrosive and must be removed from the brazed joint.
• Flux residues can be removed with hot water or by soaking in cold water followed by rinsing.
• Flux residues can also be removed mechanically, for example by brushing, grinding, or sandblasting.
• Powder adheres well to the hot brazing rod.
• Can be mixed with distilled water to form a paste.

Delivery Forms

• Standard: 1.0 kg