Guaranteed to outlast and outperform all other concrete sealers on the market, the Siloxa-Tek 8500 is the most advanced concrete sealer ever formulated; designed to prevent the growth of mold and mildew. An added benefit is salt resistance.
This porosity allows water to penetrate and can lead to mold growth. Prevention is best achieved by treating the concrete with a penetrating sealer.
Concrete sealers have disadvantages like creating slippery surfaces, requiring frequent reapplication (maintenance cost), potentially discoloring or staining, trapping moisture (causing blisters), and using harsh chemicals (VOCs), with application issues like bubbling arising from poor preparation or wrong product choice. While offering protection, the cost, labor, and upkeep for maintaining the desired look can be significant drawbacks for homeowners.
The "best" concrete sealer in Australia depends on the application, with top choices including Polyurethane (high traffic, driveways), Epoxy (indoor, industrial, garage floors, but UV sensitive), Acrylics (affordable, light use, decorative), and Silane/Siloxane (penetrating, water repellent for balconies/facades). For high-traffic, quick-return-to-service needs, Polyaspartic is excellent. Popular brands like Dulux Avista offer versatile options, while Tech-Dry and others provide specialized penetrating sealers, balancing durability, appearance, and environmental factors like VOCs.
The best-performing and longest-lasting concrete sealer in the Siloxa-Tek line will be the last thing to penetrate your concrete for over a decade. The ultimate guardian, it repels just about every nemesis concrete has: water, salt, oil, mold, and mildew.
On average, water-based sealers tend to have a longer lifespan, lasting about 5 years before a reapplication is necessary. They are more resistant to wear and tear. They offer an eco-friendly solution and are easier to re-apply and maintain, making them a popular choice for indoor applications and decorative surfaces.
Spraying Concrete sealers tends to be the more commonly used method for contractors and larger jobs, and rolling is more for the homeowner or smaller jobs. Once again, if you choose to use a Penetrating Concrete sealer, it must be sprayed onto the surface and topical sealers can be applied either way.
When To Apply Pavement Sealer. Pavement sealer is generally applied from April 1st to October 31st. This is because manufacturers specifications call for temperatures of 50 degrees and rising.
Epoxy has a higher adhesion strength than silicone or polyurethane. It means that when it comes into contact with the concrete surface, epoxy can provide much better protection than other materials. Besides creating a strong and seamless surface, a concrete epoxy sealer allows you to save time and money on resealing.
Ensure that the freshly poured concrete surface is sufficiently dry and firm enough to walk on without marking and there isn't any free water present. If the concrete is more than 14 to 28 days old (depending on weather conditions), do an acid wash first before sealing.
Sealing prevents water absorption, thus inhibiting mold growth, prolonging the life of your concrete, and preventing safety hazards.
Late winter, early spring, and fall offer the most suitable conditions for sealing concrete in the Southeast, with temperatures ranging from 50° F to 80° F (10° C to 27° C). Sealing your concrete during this time allows for proper curing and maximum protection.
Concrete is incredibly durable, but if it isn't sealed properly, it can chip or show wear in certain situations. A quality, professionally installed sealant reduces wear and tear, thereby extending the life of your concrete driveway.
To kill mold permanently, you must eliminate the moisture source, then use killers like bleach, hydrogen peroxide, or vinegar for surface cleaning, but for deep or extensive issues, professional remediation is key, as these killers only stop surface growth, not the root cause. “Permanently” means removing the mold and the water feeding it, often requiring professional biocides and sealing porous materials after cleaning to prevent regrowth.
Penetrating sealers are a great choice if you want an all-in-one concrete sealer. This does the job of concrete sealers and coating by closing up the pores of the concrete. This way, your project can be protected from weather, stains, and mold at the same time.
RMR Mold Resistant Coating comes in both white and clear. White is a tintable coat that you or your customer can choose any color they want, or go with a clear coat that goes on white and dries clear. RMR Mold Resistant Coating offers the ultimate durability combined with excellent mold resistance.
The "best" concrete sealer depends on the application: Epoxy offers extreme durability for indoor garages/retail (not UV-stable). Polyurethane is tough for high-traffic/driveways, providing gloss. Acrylics (water/solvent-based) are cost-effective, good for residential/driveways, offering wet looks or natural finishes. For natural, outdoor finishes, penetrating sealers (silanes, siloxanes) seal pores without altering look.
Yes, mold can grow under epoxy if moisture gets trapped between the concrete and the coating, but properly installed epoxy creates a waterproof barrier that prevents mold by cutting off its essential water and organic food source, making it highly resistant, especially when antimicrobial additives are used and the surface is prepped correctly. The main issue is moisture trapped from below (high humidity, groundwater), poor ventilation, or insufficient surface prep, not the epoxy itself.
Mistake #2: Sealing before Full Cure
Sealing before your patio is fully cured is a recipe for disaster. Concrete needs time to release moisture and fully harden. Rush this process, and you're looking at a weakened surface prone to damage and an ineffective seal.
Insights from Driveway Experts
Over time, they note that the sealant can wear off, leading to a false sense of security regarding the driveway's durability. Moreover, experts emphasize the importance of selecting the right materials for long-term performance rather than relying solely on sealcoating.
Colder temperatures and driveway sealcoating do not generally get along. If it is below 50 degrees, the sealer won't adhere to the surface of your asphalt driveway and will quickly wear off. Driveways that have been sealed in cold weather are more prone to fading, cracking, and potholing.
The ideal time to sealing your driveway is in the summer or when the temperature reaches at least 50 degrees Fahrenheit. The hot weather cures the sealant properly.
The fall season is a perfect time to seal your driveway and there are many reasons why that make it the ideal time. One is that the fall temperatures are the optimal temperature for sealing. This is because it is not incredibly hot like the summer temperatures, and not incredibly cold like the winter temperatures.
If the surface was sealed with a penetrating sealer previously, you can apply another penetrating sealer over - as long as the 2 sealers are compatible. If the surface was coated with a water-based penetrating sealer, applying another water-based sealer and getting good results is possible.
Sealers and waterproofers perform similar functions, but they differ slightly in how they work. A wood or concrete sealer will protect the surface. Waterproofers are more durable than sealants because they penetrate the surface, filling in leaks or gaps.