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Guard® Anti-M 24

(5 reviews)

LONG-LASTING TREATMENT AGAINST GREEN GROWTH, LICHENS & FUNGI

  Chloride and solvent-free 
  Does not change materials 
  Curative and preventative   
✓  Slow but long-lasting treatment

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How to Apply >>

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  • Composition
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Terms and Conditions
30-day money-back guarantee.  
Free Shipping within Australia for orders under $100.

Discover Its
Main Three Benefits

1

Anti-Microbial Protection

Provides durable protection against algae, mould, and microbial growth, helping surfaces stay cleaner for longer.


2

Prevents Surface Deterioration

 Reduces biological contamination that can break down and discolour building materials over time, extending surface life.

3

Low-Impact, Professional Formula

Designed for professional use with effective performance while being suitable for a wide range of treated surfaces in maintenance systems.

Powerful, Curative and Preventative Defence Against 
Green Deposits, Lichens and Fungi

Discover Its
Main Three Benefits

1

Anti-Microbial Protection

Provides durable protection against algae, mould, and microbial growth, helping surfaces stay cleaner for longer.


2

Prevents Surface Deterioration

 Reduces biological contamination that can break down and discolour building materials over time, extending surface life.

3

Low-Impact, Professional Formula

Designed for professional use with effective performance while being suitable for a wide range of treated surfaces in maintenance systems.

Powerful, Curative and Preventative Defence 
against Green Deposits, 
Lichens & Fungi

Why Choose 
Guard® Anti-M 24?

Why Choose
Guard® Anti-M 24?

Curative & Preventative


Guard® Anti-M 24 is a preventive and curative treatment with a long-lasting action. It will kill off biofilms and organic growths right down to the roots and inhibit regrowth for up to 3 years.

Curative:

  • Guard® Anti-M 24 destroys all parasitic vegetation, which is then washed away by the rain or simply brushed off.

Preventive:

  • The active ingredients of Guard® Anti-M 24 are fixed into the substrate. They limit the proliferation of mould and make it more difficult for parasitic plants to germinate.

A Safe Alternative


Guard® Anti-M 24 does not contain chlorine or organic solvents. It is a safer alternative to harsh chemical cleaners like acid, bleach and alkaline cleaners. Such chemicals can do significant damage to the materials being cleaned and to the user. Guard® Anti-M 24 is harmless to treated surfaces, and will not alter the natural look of the material.

However, Guard® Anti-M 24 is still a biocide. It needs to kill off biofilms after all. All biocides should be used with care. Before using, always read the label and the product information. Care should be taken to ensure overspray does not fall onto garden plants or into ponds containing fish.

Slow but Effective


Please note that Guard® Anti-M 24 is a slow acting but long lasting treatment. If you need something cleaned instantly this probably isn’t the product for you. The treatment will kill off the biofilm but the residuals still need to be physically removed either by brushing them off or through natural weathering by the elements. How quickly or slowly this happens depends on inclement weather and at which time of year the product is applied. The effects of the treatment are usually noticeable within 2 weeks and will continue to improve throughout the first year.

It’s slow action is actually the secret to how thorough it is at completely killing biofilms and from stopping them coming back. When biofilms are exposed to harsh chemicals the outer layers dieback rapidly and this creates a crust that the protects the underlying growths from being exposed to the chemicals. Unless you physically remove these crusts and reapply chemical, multiple times, the organism as a whole survives the treatment and grows back with a vengeance.

Guard® Anti-M 24 penetrates deep into the biofilms and disrupts metabolism at the cellular level. This effectively starves the micro-organism. The end result is that the growths will die off completely, roots and all. Further, residuals of Guard® Anti-M 24 will remain in the substrate and will therefore inhibit germination of spores that blow in for up to 3 years.

Use Guard® Anti-M 24 as an 
Antimicrobial Treatment Prior to Sealing


A diluted solution of 1 part Guard® Anti-M 24 to 1 part water can be applied to porous substrates before applying sealers or paints. This will impart antibacterial and antimicrobial properties to the coating applied over it. Just be sure to let the pre-treatment solution dry thoroughly before applying the sealer or paint.

Sealing with a product from the ImperGuard®, or ProtectGuard® range will keep porous substrates dry and clean. This will prevent organic regrowth for over 10 years.

Curative & Preventative


Guard® Anti-M 24 is a preventive and curative treatment with a long-lasting action. It will kill off biofilms and organic growths right down to the roots and inhibit regrowth for up to 3 years.

Curative:

    • Guard® Anti-M 24 destroys all parasitic vegetation, which is then washed away by the rain or simply brushed off.

Preventive:

    • The active ingredients of Guard® Anti-M 24 are fixed into the substrate. They limit the proliferation of mould and make it more difficult for parasitic plants to germinate.

A Safe Alternative


Guard® Anti-M 24 does not contain chlorine or organic solvents. It is a safer alternative to harsh chemical cleaners like acid, bleach and alkaline cleaners. Such chemicals can do significant damage to the materials being cleaned and to the user. Guard® Anti-M 24 is harmless to treated surfaces, and will not alter the natural look of the material.

However, Guard® Anti-M 24 is still a biocide. It needs to kill off biofilms after all. All biocides should be used with care. Before using, always read the label and the product information. Care should be taken to ensure overspray does not fall onto garden plants or into ponds containing fish.

Slow but Effective


Please note that Guard® Anti-M 24 is a slow acting but long lasting treatment. If you need something cleaned instantly this probably isn’t the product for you. The treatment will kill off the biofilm but the residuals still need to be physically removed either by brushing them off or through natural weathering by the elements. How quickly or slowly this happens depends on inclement weather and at which time of year the product is applied. The effects of the treatment are usually noticeable within 2 weeks and will continue to improve throughout the first year.

It’s slow action is actually the secret to how thorough it is at completely killing biofilms and from stopping them coming back. When biofilms are exposed to harsh chemicals the outer layers dieback rapidly and this creates a crust that the protects the underlying growths from being exposed to the chemicals. Unless you physically remove these crusts and reapply chemical, multiple times, the organism as a whole survives the treatment and grows back with a vengeance.

Guard® Anti-M 24 penetrates deep into the biofilms and disrupts metabolism at the cellular level. This effectively starves the micro-organism. The end result is that the growths will die off completely, roots and all. Further, residuals of Guard® Anti-M 24 will remain in the substrate and will therefore inhibit germination of spores that blow in for up to 3 years.

Use Guard® Anti-M 24 as an Antimicrobial Treatment Prior to Sealing


A diluted solution of 1 part Guard® Anti-M 24 to 1 part water can be applied to porous substrates before applying sealers or paints. This will impart antibacterial and antimicrobial properties to the coating applied over it. Just be sure to let the pre-treatment solution dry thoroughly before applying the sealer or paint.

Sealing with a product from the ImperGuard®, or ProtectGuard® range will keep porous substrates dry and clean. This will prevent organic regrowth for over 10 years.

How to Apply 
Guard® Anti-M 24

How to Apply
Guard® Anti-M 24

Preparation


    • If the material has lots of growth, brush it before application.

Application


    • Guard® Anti-M 24 is ready to be used. Always test on the material before application.
    • Apply in dry weather to dry or slightly damp material, spraying until the material is saturated.
    • Let it take effect for 10 to 15 days. Warning, if applying in cold weather (below 10 °C), the action shall be slower.
    • Eliminate residue by brushing, washing or let time and adverse weather do its work.
    • In the event of rain within 48 hours of treatment, it may be diluted and need to be renewed.
    • As part of preventative treatment before painting, Guard® Anti-M 24 can be diluted by 1 part product to 1 part water and be sprayed on the material to be painted.
    • Paint can only be applied after the material has dried fully.

Uses


    • Guard® Anti-M 24 is applied outdoors to all types of material, including terra cotta, slate, concrete, natural stone, asphalt, surfacing, wood, composite or synthetic materials, glass, fabrics, etc.
    • Guard® Anti-M 24 is totally universal. It can therefore be used to treat roofs, walls, balconies, fountains, monuments, fences, railings, decking, flagstones, boat hulls, awnings, tennis courts, etc.

Indicative Coverage


    • ​5-6m2/Litre
    • ​Coverage will vary depending on the porosity of the surface.

Tools Required


    • Apply using a low pressure sprayer

Preparation


    • If the material has lots of growth, brush it before application.

Application


    • Guard® Anti-M 24 is ready to be used. Always test on the material before application.
    • Apply in dry weather to dry or slightly damp material, spraying until the material is saturated.
    • Let it take effect for 10 to 15 days. Warning, if applying in cold weather (below 10 °C), the action shall be slower.
    • Eliminate residue by brushing, washing or let time and adverse weather do its work.
    • In the event of rain within 48 hours of treatment, it may be diluted and need to be renewed.
    • As part of preventative treatment before painting, Guard® Anti-M 24 can be diluted by 1 part product to 1 part water and be sprayed on the material to be painted.
    • Paint can only be applied after the material has dried fully.

Uses


    • Guard® Anti-M 24 is applied outdoors to all types of material, including terra cotta, slate, concrete, natural stone, asphalt, surfacing, wood, composite or synthetic materials, glass, fabrics, etc.
    • Guard® Anti-M 24 is totally universal. It can therefore be used to treat roofs, walls, balconies, fountains, monuments, fences, railings, decking, flagstones, boat hulls, awnings, tennis courts, etc.

Indicative Coverage


    • ​5-6m2/Litre
    • ​Coverage will vary depending on the porosity of the surface.

Tools Required


    • Apply using a low pressure sprayer

Frequently 
Asked Questions

Guard® Anti-M 24 kills and prevents the regrowth of mould, mildew, algae and moss on hard surfaces. It provides up to 24 months of protection from a single application. Water-based and safe for use around plants once dry.

Yes, Guard® Anti M 24 is safe to use on most materials. It will kill existing moss and mould and inhibit regrowth. Apply evenly and allow to dry. Follow label instructions for dilution rates. However, on non porous materials the residual effects may not last as long, so an annual treatment may be required.

Yes, very popular with professional cleaning and sealing contractors. Applied after pressure washing, it eliminates residual biological matter and helps prevent rapid regrowth, extending the life of the clean.

Frequently 
Asked Questions


Guard® Anti-M 24 kills and prevents the regrowth of mould, mildew, algae and moss on hard surfaces. It provides up to 24 months of protection from a single application. Water-based and safe for use around plants once dry.

Yes, Guard® Anti M 24 is safe to use on most materials. It will kill existing moss and mould and inhibit regrowth. Apply evenly and allow to dry. Follow label instructions for dilution rates. However, on non porous materials the residual effects may not last as long, so an annual treatment may be required.

Yes, very popular with professional cleaning and sealing contractors. Applied after pressure washing, it eliminates residual biological matter and helps prevent rapid regrowth, extending the life of the clean.



Tough on Growth.  Safe on Surfaces
Performance You Can Rely On

Tough on Growth.  Safe on Surfaces

Performance You Can Rely On

About Us 

We're a Perth-based family business committed to providing honest advice, exceptional service, and the right solution for every customer.

Led by a Chemical Engineer with over 20 years of experience in the chemical and concrete industries, we have the knowledge to solve even the most challenging sealing and cleaning problems. 

We carefully select and test every product we sell, offering high-performance, environmentally friendly solutions that meet our strict quality standards. 

Whether you're a homeowner, contractor, or builder, we take the time to understand your needs and provide practical, customised recommendations that deliver results. 

About Us 

We're a Perth-based family business committed to providing honest advice, exceptional service, and the right solution for every customer.

Led by a Chemical Engineer with over 20 years of experience in the chemical and concrete industries, we have the knowledge to solve even the most challenging sealing and cleaning problems. 

We carefully select and test every product we sell, offering high-performance, environmentally friendly solutions that meet our strict quality standards. 

Whether you're a homeowner, contractor, or builder, we take the time to understand your needs and provide practical, customised recommendations that deliver results. 

Common Questions

You can reach our customer support team by emailing [email protected], calling 08 6496 0444. 
Our dedicated team is between 8.30am - 4.30pm WST (Mon - Thurs) and 8.30am - 3.30pm WST (Fri) to assist with any inquiries or issues.

We’re committed to providing prompt and effective solutions to ensure your satisfaction.

We offer a 30-day return policy for all products. Items must be in their original condition, unused, and include the receipt or proof of purchase. Refunds are processed within 5-7 business days of receiving the returned item.

For more information regarding our Returns Policy please click here

WA Sealers ships all orders from our WA warehouse using third-party courier services. Delivery to the east coast typically takes around 7 business days. 

Please note that once an order has left our warehouse, shipping is managed by the courier and we’re unable to control transit times or provide detailed tracking updates on its location.

For more information regarding our Shipping Policy please click here