Guard Industry



Guard Remover® Eco Efflorescence & Cement

3.75 out of 5
(4 customer reviews)




Guard Remover Eco Cement Remover and Efflorescence Remover

Guard Remover® Eco Efflorescence & Cement is a Safe Alternative to Acid Based Cleaners

Efflorescence Remover Guard Remover Eco

Guard Remover® Eco Efflorescence & Cement is a patented new generation cleaner and stripper that uniquely removes cement, concrete, efflorescence and lime from any substrate. It is significantly less hazardous than other acid-based products on the market. It is non corrosive and non irritant. It requires no neutralisation after rinsing with water.

Mineral based staining is chemically removed by breaking strong chemical bonds within the mineral structure. The chemicals required to do this are called reducing agents. The cheapest and most prevalent reducing agents are acids. The problem with acids is they aren’t selective in what they dissolve. This means acids will likely etch the surfaces being cleaned, just as effectively as they remove the targeted staining.

Depending on the type of acid being used and the materials being cleaned, the rate of etching can far exceed the rate of cleaning. The result is a damaged surface and a persistent stain. This is not to mention the EH&S risks associated with the use of acids.

Guard Remover® Eco Efflorescence & Cement is a Better Efflorescence Remover than Acid

Efflorescence on pavers

Efflorescence is unsightly and damaging to many materials. It is caused when mineral rich water leaches through porous surfaces. The water evaporates and the salts are left behind as a mineral stain or scale. Efflorescence can vary in colour, texture and difficulty to remove depending on the type of minerals present in the salt.

Many friable materials will erode at highly accelerated rates in the presence of efflorescence. This is because as the water evaporates salt crystals form within the surface pores of the material. As they form they can apply internal stresses and cause micro cracks in the substrate material. Crystals then form in these cracks and cause further fractures.

Using harsh acids on such a surface will cause more damage. Strong acids will dissolve more than just the efflorescence. They will dissolve minerals in the substrate that are stable under normal conditions. This adds more minerals into the mix and can cause unexpected side effects. In particular, metal oxides that are dissolved will later precipitate back out in various colours causing unsightly staining.

Guard Remover® Eco Efflorescence Remover is tough on efflorescence but gentle on stone and brick. It’s a safe acid alternative that will remove efflorescence without all the collateral damage.

To stop efflorescence coming back you need to stop water soaking through the material and evaporating off the surface. The best solution is to waterproof the side of the material where the water is coming from. That way the water can’t get into the material in the first place. The second best solution is to use a full penetrating sealer from the ProtectGuard® range so that water only comes through as a water vapour. That way salts don’t make it to the surface.

For badly damaged materials it is recommended to treat with Guard Hardener® W. This product will not only repel water to prevent further efflorescence formation, but will remineralise and consolidate materials so that erosion is slowed. Such a treatment will significantly extend the service life of eroded materials.

Eco friendly efflorescence remover. Respectful of the environment logo

Laureate Award Winning Eco Concrete Cleaner 2012

Guard Remover® Eco Efflorescence & Cement is Environmentally Responsible

Guard Remover® Eco Efflorescence & Cement was awarded a Laureate award for environmental innovation in concrete cleaning taking out the “2012 i.d. trophy“.

Guard Remover® Eco Efflorescence & Cement is safe to use and safe for the environment. It is a water based product that is non corrosive and non irritant. It is non toxic and has essentially no VOC’s (>1g/l). The surfactants used in this product are biodegradable to 70% within 28 days.

Guard Remover® Eco Efflorescence & Cement is Excellent for Concrete Sealing Preparation

Guard Remover® Eco Efflorescence & Cement removes surface contaminants and thereby increases penetration of sealers, paints and other coatings. It is recommended preparation for most of our sealers, particularly when applied to concrete and cementitious materials.

Guard Remover® Eco is an Exceptional Coloured Concrete Cleaner

Coloured Concrete Cleaner Guard Remover Eco

If you are looking for a concrete cleaner to make your coloured concrete pop, then look no further. Guard Remover® Eco will remove laitence and bloom from the surface of the concrete without dissolving any of the mineral oxides. This exposes the full colour potential of the concrete. If the intensity of your concrete is less than you were expecting, cleaning with this product is where you should start.

Cleaning with regular acids will remove the laitance and bloom but will also strip out or dissolve the oxides. This results in washed out colour. Worse still, in many cases the colour will be patchy or weird coloured stains may appear. This is because the dissolved oxide pigments will precipitate back out as the concrete dries if they are not completely washed off.

Still not enough colour? Check out our ProtectGuard WF Premium wet look sealer. It provides a proper fully wet colour enhancement without making surfaces slippery. It’s completely breathable too, so it won’t discolour, flake or peel like other wet look sealers.

Additional information




Surface Area




  • Powerful Cleaner/Stripper
  • Removes laitance, efflorescence and limescale deposits
  • Increases porosity to penetrate
  • Quick efficiency
  • Non corrosive and non irritant


  • All types of materials: natural or reconstituted stone, concrete, terracotta, tiling, etc.
  • Floors and facades
  • Internal and external
  • Ideal after fitting seals or preparing the material before a protective production is applied.



  • Shake the package well before use and use the product in its undiluted state.
  • Carry out a preliminary test on a small area.
  • Apply to the surface to be cleaned.
  • Let it take effect for a maximum of 5 minutes.
  • Do not allow the product to dry before rinsing with water.
  • Rinse the surface with plenty of water with a high-pressure cleaner once the material deposits dissolve. Failing this, brush using a hard-hair brush then rinse under a jet of water while brushing.

Tools Required

  • Low pressure garden type sprayer, manual spray or brush

Data Sheets

Safety Data Sheet

Technical Data Sheet

4 reviews for Guard Remover® Eco Efflorescence & Cement

  1. 5 out of 5


    Excellent product for removing efflorescence for bricks and cement.

  2. 5 out of 5

    Mr Blastit

    Powerful cleaner that can be used anywhere that acid would be too risky. We use it for sealing prep, efflorescence removal and to remove mortar splatters from sensitive surfaces like Colorbond, paint, windows and metal. Awesome stuff!

  3. 4 out of 5

    Mark Foran (verified owner)

    Verified reviewVerified review - view originalExternal link | auVictoria, Australia

  4. 1 out of 5

    andrew taylor (verified owner)

    Verified reviewVerified review - view originalExternal link | auQueensland, Australia

    didnt work at all

    • Peter Cowan (store manager)

      Hi Andrew,

      Sounds like you have some baked on thick calcium carbonate build up. Guard Remover will safely and without any damage to the surface or surrounds remove one micro layer at a time, some mechanical scrubbing will help and please insure thick deposits are removed with a scrapper first. It is working if you see a fizz however your issue is obviously severe. Grinding, sandblasting and using heavier chemicals like hydrochloric or phosphoric are all common alternatives, however they all come with many more risks and hazards than they may fix and can cause permanent damage if not done correctly.
      I would if possible use mechanical brush on a drill to remove the thicker deposits before finishing the job with Guard Remover.

      Kind Regards,
      Guard Industry

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Q & A

Will this product clear the heavy Calcium buildup for an 18 year old Aggregate Concrete driveway? Recently pressure washed but turned out like the below. Follow links for pictures. Hayden asked on 10/09/2021
Guard Remover Eco will break down Calcium Carbonate scale. Aggitating with a stiff brush will improve effectiveness. If the scale is very thick you may need to repeat the cleaning process several times to remove it all. James Vander Ros answered on 10/09/2021 store managerstore manager
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What product do I use to remove rust stains and spots from marble pavers? Pavers are 30mm thick and have a sand blasted finish. Rory asked on 08/08/2021
Iron oxide stains require a strong reducing agent (acid) to break the bond between iron and oxygen. Unfortunately, these products will dissolve your marble as fast as the stain, so you will almost certainly be left with etching or pitting. On sand blasted marble some etching might not be that noticable. If the marble has been sealed previously and the stains are limited to the surface, spot treating with Guard Remover Eco (or a specialised rust removal product) may be sufficient to remove the marks. If the stains have soaked deep into the marble they will be almost impossible to completely remove. James Vander Ros answered on 09/08/2021 store managerstore manager
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