AMX 5500

Concrete admixture for sanitary application acid-resistance
  • Prevents fungal & microbial colonies on concrete surfaces

  • Permanent & non-diminishable

  • Perfect for sewer/sanitary applications

  • Does not physically alter final product

  • Infrastructure, applicator & environmentally friendly

The most advanced & potent antifungal/antimicrobial product on the market

AMX 5500 is a next-generation dual antimicrobial/antifungal admixture specifically designed to prevent the Microbial Induced Corrosion of Concrete (MICC). AMX 5500 represents a significant advance in the technology used to combat MICC by using three distinct components to aggressively prevent any microbes from establishing a foothold in concrete.

Designed to counteract the effects of MICC in sewer/sanitary applications, AMX 5500 can be added during mixing to any concrete structures where antimicrobial or antifungal properties are desired.

  • Antifungal/antimicrobial does not diminish over time
  • Does not alter physical characteristics of the final product
  • Environmentally Friendly
    • Will not leach out, migrate, or wash away – permanently embedded within the substrate
    • Will not impact surrounding soil or environment in which its placed
    • Stable and inert
  • Applicator Friendly
    • Does not need to be diluted
    • Replaces equivalent amount of mix water and can be added directly to the mix
    • Safe to apply with no additional PPE needed
AMX 5500 behaves as a barrier to colonization while also actively eradicating the undesirable fungi and microbes by rupturing the cell walls on contact. Possessing several positively charged quaternary amine systems uniquely qualifies AMX 5500 as the most advanced and most potent antifungal/antimicrobial product designed specifically for cementitious building materials. Its activity is not lost over time and remains functional to combat the effects of MICC over the life of the infrastructure.
AMX 5500 has been tested in accordance with Modified ISO 22196:2011 (JIS Z2801) Antibacterial Efficacy Testing on Construction Materials, resulting in ≥99.999% (5 log reduction) kill rate of the test bacteria after 24hrs of exposure. When tested in accordance with ASTM C1904-20 (Opt A) for Determination of the Effects of Acidification on Concrete Antimicrobial Additives and Concrete Products, AMX 5500 performed at levels no other known product has performed, indicating its superb capabilities to combat MICC.
Appearance Clear, colorless
pH 5.5 – 6.5
Odor Very slight
Freezing Point ~ 32°F
Flammability Non-flammable
Relative Density ~ 0.978 – 0.990 g/cm3
Specific Gravity 0.978 – 0.990
Percentage Solids 50 – 53%
Viscosity 1020 – 1400 cP
Adhesion 466psi (lab conditions)*
CAUTION: Prior to use, please read the Manufacturer Warranty & Disclaimer.

Stir and/or agitate AMX 5500 thoroughly before use. Diluting AMX 5500 is not needed. The total volume of AMX 5500 used in a particular application is to be considered “mix water” and must be taken into account when calculating the total water to concrete ratio.

Approximately 122-128 fl oz is enough AMX 5500 to adequately treat 1 yd3 of concrete in most applications. For applications where a more robust ‘protectionʼ is needed, the mixtured could be increased up to 192 fl oz for 1 yd3.

Add the required quantity of AMX 5500 to your concrete while mixing. Be sure to mix the concrete an additional 5-10 minutes so that AMX 5500 is thoroughly distributed throughout the concrete mix.


55 Gallon Drums
5 Gallon Pails
*Other sizes available on request


Box Culverts
Any Concrete Structure



Request AMX 5500 Info

Other Products

*All statements and technical information are based on tests and/or data which MarMac Manufacturing deems reliable, however, MarMac does not warrant or guarantee the accuracy or completeness of such information. Please read further manufacturer liability and warranty information.
MarMac AIS Applied Infrastructure Sciences logo