How you reseal stamped concrete will depend on the type of concrete sealer currently down, and what you want the stamped concrete to look like once sealed.
Best Practice Tips For Reapplying A Concrete Sealer On Stamped Concrete
Water Based Acrylic Sealer: If the stamped concrete is currently sealed with a water based acrylic sealer, it is best practice to maintain the surface by reapplying with only a water-based concrete sealer. You can't apply a solvent based acrylic sealer over a water based acrylic sealer because the solvents will chemically react and attack the water based product, resulting in coating failure. The only way a solvent based acrylic sealer can be applied to stamped concrete previously sealed with a water based acrylic is if the water based acrylic sealer has been completely removed. Water based acrylics will provide a low to high gloss finish without enhancing or darkening the color of the concrete.
While it is always best to follow a manufacturer's suggestions for when and how to apply a concrete sealer, we have found the best time to apply most concrete sealers is in the late afternoon or early evening. During the late afternoon, any moisture present from condensation or morning dew will have evaporated off during the day. Also, both the surface temperature and air temperature are declining, creating a more favorable environment for concrete sealers to properly absorb and bond to the substrate. Applying concrete sealers in the late afternoon helps to avoid such issues as; solvent bubbles, premature evaporation, discoloration, and blushing.
Here are a few other frequently asked questions about sealer application:
1. Why isn't is suggested to apply a concrete sealer in the morning? Most people assume morning is the best time to apply a concrete sealer, but that isn't always the case. In many parts of the country,
What is the difference between the Armor AR350 and Armor AR500 wet look concrete sealers, and which wet look concrete sealer is better?
That is a very common question, and the answer is quite simple. The Armor AR350 and Armor AR500 are both pure acrylic lacquer sealers that darken the surface of concrete and pavers to make them look wet. They offer the same benefits in terms of life and performance, but where they differ is their level of gloss. The Armor AR350 is a low gloss sealer and the Armor AR500 is a high gloss sealer.
If you want a light sheen, then the Armor AR350 is the best wet look sealer for your application. If you want a high gloss, then you want the Armor AR500.
For phtos of each, please refer to the listings:
The best temperature to apply a concrete sealer is 45-85 degrees Fahrenheit. The air temperature is not the only factor to consider when applying a concrete sealer. Other factors include the temperature of the concrete and the time of the day.
Air Temperature: In a perfect world, concrete sealers should be applied when the outside temperatures is within 50-80 degrees Fahrenheit. While this temperature range isn't always achievable depending on the time of year and where you are located, there are some safe and manageable work-arounds. Temperature will manipulate how fast or slow a product cures, and how well it is able to cure. If you apply a product outside of the temperature guidelines in the morning or mid-day, it may result in discoloration,
Concrete can be very slippery when wet, especially if the surface of the concrete is smooth troweled, polished, or dense. There are a few different things that can be done to help make the concrete more slip resistant:
All Foundation Armor penetrating concrete sealers and acrylic concrete sealers are considered to be all weather concrete sealers because they are designed to withstand everything from cold New England temperatures to hot Arizona sun.
If you are looking to seal your concrete without changing the look or color of the surface then you want a water repellent sealer. Water repellent sealers, like the Armor SX5000/SX5000 WB and Armor SC25, chemically react below the surface to form a water repellent barrier within the pores that reduce water absorption on the surface by up to 95%. Once fully cured, water repellent sealers will help to reduce damage, deterioration, and staining caused by water absorption
Acetone based concrete sealers are escentially solvent based concrete sealers. Solvent based concrete sealers are typically suspended in either Xylene or acetone, and when the concrete sealer is applied, the xylene and acetone evaporate and all that is left in or on the concrete is the sealer.
The most common types of acetone based concrete sealers are Silane-Siloxane water repellent sealers and acrylic sealers.
Silane-Siloxane water repellent sealers, like the Armor SX5000, are penetrating concrete sealers that protect the concrete, brick, and pavers without chaning their look, color, or appearance. They penetrate into the surface of the concrete
There are two reasons why concrete sweats. The first and most common reason why concrete sweats is that the concrete is cold and the air is warm. When the concrete is cold and the air is warm, the moisture in the air hits the cold concrete and condensation forms on the surface. Have you ever taken an ice cold soda and left it on the counter? The entire outside of the soda can will be dripping wet with water because the soda is cold and the air is warm. The same exact thing happens with concrete. Sealers can't stop condensation. Sealers can reduce the absorption of water on the surface, but they can't stop condensation from forming. In order to stop concrete sweating caused by condensation, you need to either warm up the concrete or cool down the air temperature.
The second cause of concrete sweating is sub surface moisture. To be honest, this is very rare, especially in a garage
Concrete fades from exposure to UV rays, surface abrasion, foot and vehicle traffic, and age. In some cases, the concrete will need to be recolored, but in most cases, the use of a high quality sealer will instantly renew any dull and faded coloring.
The Armor AR350 and the Armor AR500 will darken the surface of the concrete to make it look wet, darkening any dull and faded coloring. They will also help to enhance the surface with a low gloss (AR350) to high gloss (AR500) finish. The photo below is of an 8-year-old stamped concrete patio that had lost most of its coloring. The AR350 darkened the surface of the stamped concrete to make it look wet. If you like the look of your concrete when wet, then you will love what the AR350 or AR500 does to your concrete.
For more photos, or to purchase a sample, use the links below:
Penetrating garage floor sealers are sealers that penetrate into the garage floor and chemically react without changing the look or color of the garage floor. They are designed to protect the concrete without changing the look or color, and reduce issues such as cracking, spalling, pitting, staining, mold and mildew, and efflorescence.
The two best penetrating garage floor sealers are concrete densifiers and water repellent sealers. While both types of penetrating sealers fall under the same category, they couldn't be more different in terms of performance abilities.
Concrete Densifiers: Concrete densifiers chemically react to form calcium silicate hydrate (CSH) within the pores. CSH looks like tiny white crystals, and they continue to grow within the pores for up to 90 days after application. Concrete densifiers increase the density of the concrete, therefore increasing the strength. Concrete densifiers are used to strengthen weak concrete, reduce