5L Hydrochloric Acid at BunningsBondall’s 5L Hydrochloric Acid is just $14 at Bunnings Warehouse. It’s ideal for cleaning and polishing brick or metal and adjusting the pH level in pools. It is also good for acid etching concrete, brick and pavers to adequately prepare the surface prior to sealing or painting. Bondall’s Hydrochloric Acid also comes in 500ml, 1L, 2L, and 20L sizes.

Hydrochloric Acid Safety Instructions

Safety is the main priority when using acids. Visit our Hydrochloric Acid Safety Instructions page for safe use of this product.

5L Hydrochloric Acid at Bunnings

View the product at Bunnings website: Bondall 5L Hydrochloric Acid at Bunnings

Hydrochloric Acid SolutionHydrochloric Acid is also commonly known as acidum salis, muriatic acid, and spirits of salt. It’s applications include household cleaning, production food additives such as gelatine, descaling metal and masonry, and in leather processing. Given it is a strong mineral acid, it is considered a highly corrosive substance, and as such has many larger scale industrial uses the production of PVC plastic and Polyurethane.

Creating a Hydrochloric Acid Solution

Hydrochloric acid solution is created by dissolving hydrogen chloride in water. On it’s own and at room temperature, Hydrogen Chloride is a colourless gas. It is only when it is combined with water that a Hydrochloric acid solution is formed.

Bondall’s Hydrochloric Acid is designed for the following purposes:

  • Etching Concrete Floors
  • pH Adjuster for Pool Water
  • Brick/Metal Cleaning

Find out more about this product here.

Acid cleaning is the process of removing the various types of stains, tarnish and general discolouration from metals or masonry. This method of cleaning is commonly used to keep brick walls, concrete pavements, and metal surfaces clean and looking new. The strength of the acid cleaning employed may depending on the material to be cleaned, and the type of stains that are present.

Exact methods of acid cleaning vary considerably depending on the situation and material to be cleaned. Metal objects can be soaked in a combination of water and some type of acid cleaner to remove lighter stains, where as walls or concrete pavements normally require a constant stream of water as part of the washing process.

Strong acid cleaners, such as Hydrochloric Acid, are used when the tarnish or stain is more resistant. Acid cleaning products of this type are effective when washing down concrete or brick, and aluminium or similar metals. It may be necessary to apply the product more than once to completely clean the area, depending on the amount of dilution that takes place with the acid.

Acid Cleaning Products

Bondall’s Hydrochloric Acid, Efflorescence Stain Remover, and Ranex Rustbuster are three very effective acid cleaning products with different degrees of strength depending on the type of material to be cleaned.

acid cleaning

Acid Etching Metal is the process of cutting into a metal surface using acid. Metal etching is used as an industrial manufacturing application, an art technique, and a application for identifying and branding property.

The Method of Acid Etching Metal

acid etching metalThe basic method for acid metal etching is to apply protection to the areas of a metal surface, either to the whole area or just to the areas that are to remain unaffected. The parts of the metal to be etched are then either not covered or the protected material is scratched off from it using tools such as an etching needle. The metal surface is then dipped in acid which then eats away at the exposed areas of the metal, creating lines.

Chemical Milling is another phrase used for industrial acid metal etching. Industrial uses include the fabrication of semiconductors, the printed circuit board industry, and by the aerospace industry in fashioning aircraft components.

Bondall's Acid SolutionsBondall’s Acid Solutions range provide cleaning solutions for just about every outdoor surface. Between them, the 3 products in the range will clean all metal and masonry surfaces.

Bondall’s Acid Solutions – Hydrochloric Acid

Hydrochloric acid is great for cleaning metal and brick surfaces. Hydrochloric Acid will remove the weak, milky layer of cement dust, lime and sand fines that can rise to the surface with over-wet concrete, poor curing or over-trowelling.

Bondall’s Acid Solutions – Ranex Rustbuster

Ranex Rustbuster is an ideal product for cleaning most metals as it chemically destroys rust and other stains. It dissolves and cleans off bore water, rust and mineral stains from most internal and external surfaces – toilets, baths, basins, windows, walls, boats and other non-porous surfaces.

Bondall’s Acid Solutions – Efflorescence Stain Remover

Efflorescence Stain Remover is ideal for cleaning concrete and other similar masonry surfaces that have accumulated dirt, mould and efflorescent stains. It specialises in the removal of unsightly white powdery stains appearing on brickwork, pavers, concrete and rammed earth blocks.

Check out Bondall’s range of Acid solutions here.

PoolBondall’s Hydrochloric Acid has a number of uses, however one of the most popular is to lower pH in pool water.

The pH of a pool should be tested weekly.

The recommended range is between 7.2 and 7.6. When the pH is higher than 7.6, it can be corrected by adding Bondall’s Hydrochloric Acid as shown below:

Approximate amounts of Hydrochloric Acid used if pH is high

Volume of
Pool Water


pH Grading
7.2 – 7.6



10,000 lt

30,000 lt

50,000 lt

100,000 lt

No acid required

No acid required

No acid required

No acid required



No acid required




1.1 lt




1.8 lt

SAFETY: Use no more than 500ml at any one time and never add Hydrochloric Acid when people are in the pool

Safety instructions when using Bondall’s Hydrochloric Acid in swimming pools

When adding Hydrochloric Acid ensure it is mixed thoroughly with water. It is important to always add acid to water, never add water to acid.
Ensure the mixed hydrochloric acid is added to the surface of the pool water.
Allow between 2 and 3 hours for it to mix with the filter running, then measure the pH again. Then minor adjustments can be made as necessary.
Storage – Store Bondall’s Hydrochloric Acid in an upright and secure position in a cool, well ventilated place. Ensuring it is kept out of reach of children.
Do not allow Hydrochloric Acid to come in to contact with any other chemicals or substrates.
Avoid contact with skin or eyes, avoid breathing vapours, wear suitable protective clothing, gloves and eye / face protection when using this product.

Acid Cleaning MetalAcid Cleaning Metal with Ranex Rustbuster

Ranex Rustbuster is an ideal product for acid cleaning metal as it chemically destroys rust and other stains. It dissolves and cleans off bore water, rust and mineral stains from most internal and external surfaces – toilets, baths, basins, windows, walls, boats & other non-porous surfaces.

Simply apply Ranex, allow a few minutes to work & then wipe or hose off without letting it dry.

Some deep seated stains may need further applications and aggitation with a brush or light scourer. Spot testing is recommended on paintwork & tinted gel-coat.

Find out more about Ranex Rustbuster here.

The most recent addition to Bondall Acid Solutions range is the widely used and popular Hydrochloric Acid. Quickly becoming the core of the range, it has provided us with the great need to reflect the right details, application techniques and safety when using acid around your home and with your building and renovating projects.

Acid Solutions


  • Acid Etching
  • To regulate the pH level in a wide range of manufacturing and treatment processes including the production of drinking water, pharmaceuticals, beverages and foods
  • In the processing of additives for the food industry including fructose, citric acid and hydrolyzed vegetable protein
  • To produce inorganic compounds for water treatment including drinking water and waste water
  • To neutralise the water in swimming pools making it safe for bathers
  • To process leathers in the tanning industry
  • To purify common salt

Acid Solutions Safety

With Bondall’s Acid Solutions we will provide in-depth details for the proper application, tips for easy use and the most important of all – reflect a safe way to use, clean, store and dispose of your Acid Solutions.

Click for more information about Hydrochloric Acid:

Hydrochloric Acid Products
Hydrochloric Acid Safety
Hydrochloric Acid SDS