SymbiCoat™- Smart Functional Coatings Technology

SymbiCoat™ is unmatched in its ability to rapidly and repeatedly uptake sodium hypochlorite and stabilize it on surfaces, to allow the sodium hypochlorite to do what it does best: kill microbes fast.

Where Clean is Critical – choose SymbiCoat™.

How It Works

Exigence Technologies has developed the highly-effective, ‘stimulus-responsive’ SymbiCoat™   family of monomers for incorporation into a variety of polymer and coating systems, particularly acrylics, epoxies & polyurethanes.

SymbiCoat™ monomers efficiently stabilize chlorine on surfaces – providing antimicrobial functionality that extends the effect of chlorine chemistry for renewable and long-lasting microbial control. SymbiCoat™ monomers are biocidally inert, non-leaching molecules that can be permanently bound or polymerized into several widely-used polymer coating systems.  SymbiCoat™ monomers have no microbicidal activity either alone or within the polymer coating.  However, upon exposure to dilute (1-200 ppm) solutions of sodium hypochlorite in water, SymbiCoat™ monomers are highly effective at attracting chlorine ions and stabilizing them on a surface, permitting the well-known, agency-registered chlorine to “rest” on the surface where the chlorine can contact and rapidly eliminate bacteria, viruses and fungi. Even drug-resistant microbes can be efficiently eradicated because chlorine is an oxidizing chemistry that has does not induce microbial resistance.

Agency-registered sodium hypochlorite is one of the most widely used, cost-effective, and well understood disinfectant chemicals available globally. Exigence SymbiCoat™ allows sodium hypochlorite to provide a significantly longer period of action than would otherwise be possible, even at levels that are safe for food contact.  It has been shown that, when properly activated, SymbiCoat™ can stabilize sodium hypochlorite on a surface for up to 400 days.

Stabilization of chlorine at the material interface is a unique approach which may disrupt microbial attachment to the surface, creating ‘bottom up’ microbial control.  Exigence SymbiCoat™ supports efficient usage of chlorine by targeted release in direct contact with microbes. Sodium hypochlorite alone is typically poor at penetrating through organic films; however, surface-stabilized chlorine is better at mitigating organic load challenges.  SymbiCoatTM contains proprietary features which make our monomers resistant to protein adsorption.

Better Than Market-Leading Silver Technology

Chlorine stabilized on a surface supports significantly faster kill than market-leading silver technologies. Most antimicrobial coatings, such as those infused with silver and silver ion, depend upon a “leaching” mode of action. A toxic (versus oxidizing) active ingredient, such as silver, copper or zinc in various forms, is impregnated into the coating, but toxic antimicrobials work by leaching out of the substrate. This means the store of antimicrobial active ingredient is subject to continuous depletion.  As a result, over time, the ‘antimicrobial’ product has very little to nil positive activity. The antimicrobial effect can be extended by loading more toxic ingredient into the substrate, but eventually the store will be depleted. Excess loading can cause issues such as skin discoloration due to silver, for example, and cleaning practices, including the use of chlorine can strip metal active ingredient very rapidly. Furthermore, some experts contend that leaching of toxic chemistry has negative implications for the aquatic environment, food safety and human and animal health.

Using industry-standard test protocols, our testing shows that EPA-registered sodium hypochlorite bound to surfaces treated with SymbiCoat™ can kill drug-resistant bacteria at least 100 times faster than today’s market-leading silver technologies. SymbiCoat™ monomers are permanently bonded into coatings and polymers, and do not leach out.  Their functionality remains integral to the surface, and the chlorine stores can be recharged within minutes with a simple wash or spray of dilute sodium hypochlorite.

Symbicoat™ Rechargeability & Longevity

One of the most unique characteristics of SymbiCoat™ monomers is their “rechargeability”. The germ-killing activity of EPA-registered sodium hypochlorite stored in any SymbiCoat™ material can be rapidly replenished as often as necessary with a dilute rinse or spray of 1-200 ppm sodium hypochlorite in water. A SymbiCoat™-infused coating will continue to extend chlorine efficacy for as long as the durable coatings will last because SymbiCoat™ stabilizing and storage capabilities are maintained even when challenged with organic load, submersion in fluid, and repeated cleanings.  For example, we soaked an activated SymbiCoat™ surface in sheep’s blood for 4 hours, then washed the surface and the chlorine was still there! Unlike previous generation rechargeable N-halamine chemistries, Exigence SymbiCoat not only facilitates faster microbe elimination by the chlorine, it also recharges much more rapidly, uses significantly lower levels of chlorine to recharge and stands up to organic load. Importantly, sodium hypochlorite is an oxidizer and does not contribute to antimicrobial resistance, unlike the majority of toxin-based antimicrobial active ingredients.

*Note: SymbiCoat™ must be activated by a halogen such as chlorine (available via sodium hypochlorite) prior to use. Surfaces need to be coated once and then recharged if needed, as long as the coating remains on the surface.  Coating durability is a function of the coating formulation’s physical & mechanical properties and not the properties of the SymbiCoat™ monomer.

If your target segments include Food & Beverage Processing environments, Industrial Water Infrastructure, Industrial Asset Protection or Healthcare Environments & Devices, SymbiCoat™ can add rapid “stimulus-response” functionality and value to your coatings and polymers.

If your customers are seeking better options for high-performance microbial control – think SymbiCoat™.  Where Clean is Critical.

Accessing SymbiCoat™ Technology:

Exigence Technologies is an innovation partner and integration specialist support team.  SymbiCoat™ monomers and related chemical processes are strongly IP-protected globally through patents and patents pending owned by Exigence Technologies. For our partners, SymbiCoat™ can be accessed through intellectual property licensing or chemical supply.  For those partners requiring monomer supply, Exigence has a supply chain partner in place to meet your volume requirements. Please contact us for more information on incorporating this breakthrough smart coating technology into your product line.