Welding & Metal Treatment Products // Pickling & Passivating

S-Weld Clean Neutraliser: Neutralising Solution for Acidic Pickling Paste



Callington S-Weld Neutraliser is an alkaline solution for the neutralisation of acidic pickling waste. It contains an in-built pH indicator to provide a visual colour change when neutralisation of spent acidic waste has been completed.



Directions For Use

Directions For Use

1. Neutralisation of retained acidic waste: For every litre of spent pickling waste, add approximately 1.7 litres of S-Weld Neutraliser. The S-Weld Neutraliser on contact with the spent acid waste will go clear with an effervescent reaction.  Keep on adding S-Weld Neutraliser solution till a faint pink colouration exist. If neutralisation has not occurred with the initial dosage, then add additional quantities of S-Weld Neutraliser at 100ml per litre of waste until colour change is observed.

2. Diagnostic Use: After washing the pickling gel away and while still wet, spray the S-Weld Neutraliser solution directly onto the area where the pickling gel was applied, in particular corners and crevices.  If residual acid is present an effervescent reaction will occur.  Flush with water thoroughly once the effervescence has stopped.








Callington S-Weld Neutraliser allows users of pickling paste and other acidic metal treatment products to comply with pH requirements of trade wastewater regulating authorities.




Physical Properties

Physical properties

Appearance:          Dark pink alkaline liquid, mixes with water

pH:                         Not Available

Specific gravity:      1.14 - 1.16

Solubility in water:   Miscible