What are the disadvantages of welding

Electrode weldingInert gas weldingDevice cheaper to buyDevice more expensive to buyRunning costs tend to be lower. Running costs tend to be higher.

Equipment suitable for wearing "on the man", e.g. moving on scaffolding and doing short welding here and there.


You take electrodes with as much or as little as you need.

De facto location-bound because of the protective gas cylinder

Welding wire is only available at least 5 kilos.

Can also be used in strong winds and even under water.

Wind protection is required even in moderate winds (due to the flowing shielding gas). Impossible underwater.


This disadvantage is compensated for by means of cored wires (the protective gas enclosed in the wire, so to speak, similar to solder with enclosed flux), but the use of cored wire requires at least 10 minutes of conversion.

Electrodes can be changed relatively quickly, which means that you can quickly switch to other materials. The conversion consists (almost) only of changing to a different type of electrode.

In fact, it is set for a specific welding material. Retrofitting means at least 10 minutes of modification.

Working speed lower. Frequent electrode changes. The entire weld seam must be freed from the slag with a hammer AND cleaned again for further processing steps (painting ...).

Working speed higher. Theoretically, you can weld as long as you like without checking and reworking the weld seam for further processing steps.

For the less experienced, the quality of the weld seam is only revealed after the slag has been removed.
Assessing the quality of the weld seam during welding requires some experience. The quality of the weld seam can also be easily assessed by casual welders during welding.

More critical in certain postures, e.g. falling, overhead, etc., since the not yet solidified slag threatens to flow away or to form drops.

Uncritical in terms of posture and direction of welding. Overhead or sloping welding easily possible.

Requires a lot more craftsmanship.

This applies to both the ignition process and the welding process. Continuous attention is required, especially with the latter. The electrode is constantly shortening and you cannot support yourself with the electrode on the workpiece; it must be run freely.

Almost no manual skills are required. The ignition process does not require any practice at all, and you can relax a little during the welding process. Touching the workpiece with the nozzle or even supporting it on the workpiece is possible with almost no restrictions. The distance between the nozzle and the workpiece is not critical.

Difficult to impossible with thinner sheets. This is less a question of ability than of the fundamental limits of the process.


Welding on car bodies: We do not recommend this without restriction.

Equally suitable for all material thicknesses. Thin sheets are relatively easy to weld. This process makes professional body welding possible in the first place.

You often need two hands when stapling.

Since you can press with the nozzle, you usually only need one hand to staple.

Very difficult in places that are not directly visible to the eye.

Since you can position and press the nozzle before igniting, it is also suitable in places that are not visible.

Due to the sometimes complex composition of the electrodes, they tend to be more harmful to health. This can be effectively countered by adequate smoke extraction, but it is questionable whether such conditions can be assumed in the DIY sector.

The protective function is ensured by absolutely non-toxic gases (CO2 and argon) and therefore tend to be less harmful to health. Released substances (from the workpiece or welding wire) are less harmful or occur in smaller quantities.