Lastek 77

Welding AlMg5 - highest strength

TIG welding rod for welding AlMg-alloys with up to 5% Mg, AlMgMn and AlZnMg alloys.

High tensile strength and excellent corrosion resistance.

Applicable for temperatures from -196°C (-320°F) up to +150°C (300°F).

Can be anodized without risk of discoloration (on base metals without Si).

Specifications & Usage


Maintenance and repair welding of truck bodies, window frames, metallic furniture, advertising signs and boards etc...

All kinds of highly-stressed Al constructions e.g. container-repair.

Applications in marine environment.

Surfacing of Al-dies and moulds (plastic bottle dies).

Also in the chemical- and food industry.


Highest speed and minimum base metal dilution is recommended for heat treated alloys.

Complex or large aluminium components should be supported by tack welds and jigs.


Welding proces: Tig welding (GTAW)
Material Type: Aluminium
Welding positions: NA
Norm : EN ISO 18273
Classification: Al 5356 - AlMg5
Norm: AWS A5.10
Classification: ER 5356
Minimum packing: 5 kg in a cardboard box