WA Sealers

Perth based supplier of innovative paving, stone & concrete cleaning and sealing products

ProtectGuard MG

  • From $3.84/m2 (RRP)
  • Price includes GST
  • Free Shipping within Australia
  • Trade & bulk order discounts available. (Click Here)




ProtectGuard MG Stainproof sealer

ProtectGuard MG Marble and Granite Sealer

ProtectGuard MG is a ‘new generation’ stone sealer designed to protect substrates with very low porosity. It strongly repels water, oil, grease, weak acids (fruit juice, tomato sauce etc), and other general stains. In terms of stain resistance it sits right at the top of the ProtectGuard range. It outperforms most competitors products. Independent testing puts it well ahead of the likes of Dry Treat and Lithofin.  When only the best will do, choose ProtectGuard MG!

ProtectGuard MG Marble Sealer Granite SealerProtectGuard MG is highly water repellent. So it keeps substrates dry. This, in turn, prevents the growth of moss, mould and lichens.

ProtectGuard MG is ideal for protecting all dense low porosity materials. Such as:

  • Marble.
  • Granite.
  • Ceramics.
  • Polished and crystallised surfaces.
  • Stoneware.
  • Porcelain.
  • Low porosity silica – limestone materials.
  • All smooth mineral substrates.
  • Densified and polished concrete.

ProtectGuard Marble and Granite sealer contains 90% active components, so you aren’t just paying for solvents. As a result it goes a long way. On dense surfaces coverage rates of up to 20m2 per litre are typical. It also comes with a 10 year performance guarantee. ProtectGuard MG provides outstanding value for money.

High Performance Marble Sealer

ProtectGuard MG Stain Resistant Sealer Chart

Penetrating very dense and crystallised materials is not easy. This makes them very difficult to seal properly. Marble, in particular, has a crystalline structure that is notorious for making good sealers look bad. So marble is a good testing material for high end sealers. If it performs well on marble it will work as well, if not better on everything else.

ProtectGuard MG has been designed specifically for marble and granite. That’s what the MG stands for, Marble & Granite. As such, it makes an excellent marble sealer. No matter whether the stone is honed, polished, or even crystallised. ProtectGuard MG will penetrate into the surface to provide long lasting protection.

ProtectGuard MG is a Breathable Sealer

Breathable sealer penetrating sealer ProtectGuard MG is suitable for both indoor and outdoor applications. Use for walls or flooring. It is a impregnating type sealer which does not create a surface film. Materials remain permeable to air and water vapour. This allows the surfaces to breathe. Surfaces stay clean and healthy. Moisture in the substrate can escape as water vapour without any negative impacts on the sealer. This is especially important where rising damp is an issue. Film forming sealers cannot breathe and will delaminate, blister and peel under such conditions.

ProtectGuard MG Granite and marble sealer is colourless. It generally does not change the look or texture of the treated material. However, on certain materials it can have a very slight darkening effect. Doing a small test is always recommended before doing a full application.

It has a high level of abrasion resistance, so its fine to use on floors. It is UV and frost resistant and does not discolour with age. Since it doesn’t produce a film on the surface it won’t alter the natural slip levels of the surface.

Need Something Different? There is a Protect Guard Sealer for All Types of Applications

ProtectGuard MG is a solvent based sealer designed for dense and low porosity materials. However, there is a Guard Industry Protect Guard Sealer to suit every application. For a water based, food contact compliant and extremely low VOC equivalent check out ProtectGuard MG Eco. For more porous materials consider using Protect Guard. For high traffic porous floors try Protect Guard HD. For colour enhancement consider Protect Guard WF Premium wet look sealer.

ProtectGuard Sealer Selection Chart

Not sure how porous your surface is? Do a water droplet test. Put a drop of water on the surface you want to seal. Then time how long it takes for the droplet to soak in. Check the time against our sealer selection chart.

Additional information

Weight N/A
Dimensions N/A

Natural Look


Solvent Based


Hydrophobic (Water Repellent), Oil Repellent, Penetrating, Stain Protection

Product Type



5 Litre, 20 Litre, 250ml


Guard Industry


  • Specifically designed for low & very low porosity substrates
  • Protects against water & oil staining
  • Abrasion resistant
  • Does not change colour
  • UV and frost resistant
  • Formulated with 90% of activ components
  • Non film-forming, lets the surface breathe
  • Interior and exterior use


  • Drying Time:
    – Protected drying: 1 hour (surface to be protected for 24 hours)
    – Optimum effectiveness obtained after 48 hours.
  • Coverage:  8-20m²/litre depending on surface porosity
  • Clean-up:  Clean tools and equipment immediately after use with a solvent.
  • Equipment needed:  Apply with a brush.  Never apply with a sprayer.
  • Odour:  Slight


ProtectGuard MG can be used inside and outside on all vertical and horizontal surfaces.  It is ideal for treating all low and very low porous materials, such as granite, marble, ceramic, polished & crystallised surfaces, stoneware porcelain and all smooth mineral substrates, especially low porosity silica-limestone materials.

ProtectGuard MG is used for new and renovated constructions.


  • Always work in a well-ventilated space.  If not, wear a protection mask.
  • Never apply with a sprayer.
  • For best results, ProtectGuard MG is used when the temperature of the substrates is between 5°C and 30ºC.
  • Do not dilute or mix with any other product.
  • Resistance to acids on calcareous materials (non crystallised marble…) is limited.  It is necessary to eliminate acids quickly on these materials.
  • On certain materials, product may slightly increase the original colour (carry out a preliminary test).


Surface preparation:

  • Apply the product to a surface that is clean, dust-free, grease-free and dry. To remove stains greasy stains use Guard CleanerEco Soiled Floors. For efflorescence, laitance or concrete bloom use Guard RemoverEco Efflorescence & Cement.  Surface preparation ensures good efficiency of the treatment.
  • Rinse carefully and wait until the surface is completely dry and free from any cleaner marks before applying ProtectGuard MG.


  • Use neat, do not dilute.
  • Shake the product well before use.
  • Always carry out a preliminary test.
  • The treated surface should be impregnated in one application.
  • Let the product penetrate and dry (from 10 to 60 minutes, depending on porosity and temperature of material).
  • do not over apply, remove any access with a clean cloth by swabbing before the product dries.
  • drying time – 1 hour
  • the surface must be protected for 24 hours from traffic and liquids (rain, grease…)
  • The surface can be polished without abrasion after application of the treatment.
  • Optimum effectiveness obtained after 48 hours.


  • Chlorophyllin based product.
  • VOC 430g/l*
  • Respiratory protection:
    • Under normal conditions of use where adequate ventilation is available, no special respiratory protection equipment is needed.
    • wear a protection mask (type ABEK) if the area is not well ventilated
  • Hand protection : Wear latex gloves.
  • Skin protection : No special protective clothing or skin protection is required under normal conditions of use.
  • Eye protection : If there is a real risk of splashing, wear protective goggles.
  • If swallowed : Do not induce vomiting. Contact a doctor or a specialist.

Data Sheets

Technical Data Sheet – ProtectGuardMG
Safety Data Sheet – ProtectGuardMG

2 reviews for ProtectGuard MG

Powered byCusRev
Based on 2 reviews
5 star
4 star
3 star
2 star
1 star
  1. 5 out of 5


    Sealed all the showers in a local aged care Home and the product is working great! The showers that had water seepage causing paint to bubble on the other side of the wall are no longer leaking. High recommend.

    (0) (0)
  2. 4 out of 5

    Michael Fairey

    Still to use the product

    (0) (0)
Add a review

Q & A

Is the product food safe Susan Gaye Rochford asked on April 9, 2023

Short answer is yes. The long answer is that no full penetrating sealers protect against strong acids (like vinegar, lemon juice etc), because they do not produce a physical barrier to prevent chemical reaction. If acids are left to sit on materials that are susceptible to acids (lime-based materials like marble, limestone & concrete) the acids will chemically dissolve the base material and may take some of the sealer with it. The sealer itself isn't hazardous, and neither are the base materials (in most cases), but technically speaking, anything that ends up in that "food spill" that is not "food" makes the whole system not food contact compliant. ProtectGuard MG is more acid resistant than other penetrating products, so it is arguably better than most in this regard (see this review for more info). So, practically speaking, unless you are slurping vinegar off your bench top (or similar), it's food safe.

admin answered on April 10, 2023 store manager
(0) (0)

Ask a question

Your question will be answered by a store representative or other customers.

Thank you for the question!

Your question has been received and will be answered soon. Please do not submit the same question again.



An error occurred when saving your question. Please report it to the website administrator. Additional information:

Add an answer

Thank you for the answer!

Your answer has been received and will be published soon. Please do not submit the same answer again.



An error occurred when saving your answer. Please report it to the website administrator. Additional information:

Call Now