Cleaning and Sealing Concrete Pavers Process

Gappsi Cleaning and Sealing Paving Stones Process
Our experience in cleaning and sealing concrete pavers is not only shown through our expert staff in handling the products but also in the timing between each step of the process. Using the right right people, with the right equipment to ensure a job is done right for YOU!
STEP #1
The Gappsi process starts with focusing on losing up and the removal of soil and debris from the paver’s joints using a state-of-the-art high water volume pressure washer that produces 200 Fahrenheit hot water.
( 1 video picture one using turbo nozzle )
STEP #2
The 2nd step is to wash the floor surface using extractor surface cleaners. This will clean the floors uniformly. In addition, the suction produced by the surface cleaner extracts any loose material. This material is loosened and sitting in the pavers gaps. We pump them out and away from the area being prepared for sealing.
( 2 video and picture of sealer truck open door )
STEP #3
Once the paving stone joints and surface have been completely cleaned. Allow the patio stones to completely dry. The selection of joint filling material is based on the selection of the sealer we use.
( 3 picture and video with surface cleaner )
STEP #4
It is important to mention a few things. If we are sealing a concrete paving surface using a color enhancer sealer. Then we use a urethane sealer. In this case, we also use silica sand (color of choice) to fill the joints. Next, we vibrate the pavement with a specific vibratory roller compactor made for this application process. This helps the sand settle in between the paver joints and fills the joints tight. Lastly, urethane sealer is applied.
( 4 picture video of filling and vibrating pavers )
STEP #5
One person sprays the sand onto the concrete pavers. The second person moves the sand around with a blower filling the joints. This process ensures that the joins fully absorb the sealer when applied to its full depth. The surface of the pavers becomes sealed in the process while we focus on flooding the joints.
A second coat of sealer is applied right after while the first coat is still tacky strengthening the seal to the stone. This binds to the first coat.
(5 video of applying urethane sealer )
STEP #6
When solvent sealers are used the process changes with the use of sand. We use Polymeric sand instead of Silica sand. Polymeric sand is a combination of silica sand and polymer manufactured and delivered in dry bags. After applying to the paver joints and vibrating down, water is applied. The water activates the polymeric in the sand and causes the sand to harden when dry. The last step is applying the solvent sealer over the entire floor surface.
A great job is only delivered by the following criteria:
the experience and knowledge of the applicator
the right preparation of the surface
the proper equipment used
the appropriate type of sealer selected for the desired outcome.