G-Speedy Spray

Pickling spray for AISI 300 series stainless steel


G-SPEEDY SPRAY is a ready-to-use pickling gel for stainless steel designed to quickly remove oxides (and other contamination caused by previous mechanical processing) from welds and large surfaces.

G-SPEEDY SPRAY has been designed for spray application on large surfaces and does not run even if applied on vertical surfaces. It is coloured red to ensure greater visibility avoiding wastage in use.

The final aesthetic result is similar to that obtained with immersion pickling.

Good washing to completely remove the contaminants (oxides) dissolved on the surface is essential to obtain a good result.

Gel consumption is between 200-300 g/m2 using a pneumatic pump.

Instructions for use

G-SPEEDY SPRAY is a thixotropic product; it is recommended to mix/shake it before use, especially after long periods of storage. Close the bucket well after use.

In order to reduce NOx emission which creates strong fumes, it is advisable to degrease the surface with liquid SMART CLEANER, rinse with water and dry. Chemical treatments are generally not effective if oils and greases are not removed beforehand. It is advisable to pre- treat the surface with a degreasing liquid, as good degreasing is essential to obtain a good result.

If you need to work in closed environments, ensure good ventilation. We recommend applying G-SPEEDY SPRAY evenly using a manual or pneumatic pump suitable for spraying (PC00353).

Check that all non-stainless steel parts are adequately protected.

It is inadvisable to apply G- SPEEDY SPRAY on hot sheets (> 45°C) and surfaces exposed to direct sunlight.

The treatment times are as follows:

  • Surfaces with TIG welds: 5 to 15 minutes.
  • Surfaces with electrode welds: 20 to 40 minutes (20°C).

The product can be left at ambient temperature (20°C) up to a maximum of about 12 hours.

It is advisable to do some tests on samples to determine the exact treatment time.

Once the pieces have been pickled, thoroughly wash them using a high-pressure washer. A final wash with demineralized water ensures obtaining an optimal result. To prevent haloes and stains,, you can also use ECOCLEAN 2000 (a detergent for stainless steel) after pickling.

Precautions for use

Use suitable personal protective equipment and follow the instructions on the safety data sheet.


Washing wastewater is acidic and therefore cannot be drained directly but requires neutralization and decantation.

Industrial wastewater may only be drained after authorization of the competent authorities. Delmet can supply manual or automatic equipment for this type of treatment.

Available formats

G-SPEEDY SPRAY is available in the following formats:

  • G-SPEEDY SPRAY pickling agent - pack of 25kg (PC01559)
  • G-SPEEDY SPRAY pickling agent - pack of 1100kg (PC01560)

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