Armack soft soldering paste LF No. 3 250g
Armack soft soldering paste LF No. 3 250g.
LF No. 3 paste is a mixture of fine-grained powder made from S-Sn97Cu3 (L-SnCu3) solder alloy, used with No. 3 soft solder for soldering copper pipes and fittings in hot and cold drinking-water and central-heating installations with operating temperatures up to 110ºC. PZH, DVGW and RAL approval. The paste is supplied with a brush.
Physical and chemical properties
Physical state: paste
Colour: grey
Odour: no data available.
pH: no data available.
Melting/freezing point: 230 – 250°C
Initial boiling point and boiling range: 110°C
Flash point: no data available.
Evaporation rate: no data available.
Flammability: non-flammable.
Upper/lower flammability or explosive limits: not applicable.
Vapour pressure (for zinc chloride): 1.33 hPa (428 °C).
Vapour pressure (for ammonium chloride): 0,13 kPa [20°C]
Vapour density: no data available.
Relative density: approx. 2,35 g/cm3
Solubility (for zinc chloride): readily soluble in the following materials: methanol.
Solubility (for ammonium chloride): partially soluble in: methanol.
Octanol/water partition coefficient: no data available.
Auto-ignition temperature: not applicable.
Decomposition temperature: no data available.
Viscosity: approx. 200 dPa s (at 20°C)
Explosive properties: not applicable.
Oxidising properties: no data available.

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