Lastek 52 V

Sheet metal and cast brass parts

Flux coated rod for oxy-acetylene welding of brass and bronze and for brazing of steel and cast iron and copper.

Low heat input minimizes distortion.

Brazing sheet metal with Lastek 52V is very easy and the beads are smooth and have a good appearance.

Specifications & Usage


Car bodies, pipes, sheet metal.

Brass and bronze art work and furniture.

Parts for refrigeration and heating equipment.

Repairs on cast iron.

Soldering of cast iron, steel and red copper applications.

Hardness: 110 HB

Bonding temperature: 820 °C


Remove paint, oil, and other impurities.

Chamfer edges and angles. Preheat slightly.

Heat steel plate locally until dark red.

Use a slightly oxidizing flame on brass and a neutral flame on steel. Hold inner cone of the flame about 1 cm from work piece, avoid overheating.

Melt the rod by rubbing along the joint.

No finishing required.

It is not necessary to use a separate flux.


Welding proces: Oxyfuel welding
Material Type: Copper (alloys)
Welding positions: NA
Norm : EN 1044
Classification: Cu 303
Norm: AWS A5.8
Classification: RB CuZn-A
Minimum packing: 5 kg in a cardboard box