Swimming pool and Retaining wall Built by Gappsi in Woodbury NY, with Travertine patio and coping. Refurbished with the cleaning and sealing process. Using low pressure hot water the paver’s surface gets clean uniformly with no impact of wear on the stone surface. The joints in between the pavers got filled with high quality polymeric sand and vibrated with heavy mechanical plate compactor with rubber rolling system to prevent pavers from getting scratched or damaged. Then sealed with high quality urethane sealer To learn more about Gappsi products, please contact us at 631-543-1177 or visit our web site at www.gappsi.com
Backyard Pool Patio Contractor Westbury Long Island NY

Backyard pool patio installed by Gappsi in Westbury NY with natural stone pavers. Scogli di mare limestone pool coping, 6×9 Melfi limestone random pattern and inlays of 6×9 scogli di mare pavers. Stoop and cocking island veneer were veneered with Fiorito travertine. The all pool and house patio were cleaned with hot water low pressure washing, joints were filled with haze free polymeric sand and sealed with urethane sealer.
What is Efflorescence and what Causes it?
A white powder that bleeds trough the cement, grout, bricks and concrete walls and floors. That white residue is called efflorescence. it is the lime and calcium that gets brought to the surface by way or evaporation as the stones dry the water rises to the top and so is the white powder from the cement within the paving stones and retaining walls.
The solution to remove it isn’t many, there are some products that could remove it but at the same time you could damage the finish on the stones. Best to let a professional decide how to and to what products to use.
Long Island Efflorescence Cleaning and removal Experts
What is the best sealer for concrete pavers?
There are many manufactures of sealers, from solvents to acrylic urethane. Epoxies, acrylic, and urethane sealers come in water-based versions and solvent-based versions, including combinations of both. The biggest difference between the two is the VOC content. The sheen and life of the product determines how often it lasts before needing to be reapplied. Solvent-based acrylics tend yellow overtime and don’t allow the concrete breathe. Epoxies are the strongest sealers, but are best used for smoother surfaces and more for indoor or warehouse floor application. The best sealers for paving stones are water-based urethane. They are algae and mold inhibitors, allow superior joint stabilization, they are environmentally safe, its UV Protection will not harm vegetation, and it is VOC Compliant in all 50 States. Well-trained Gappsi personnel can apply paving stone sealer products achieving the best results.
Cleaning and Sealing Expert Company Long Island
Do you need to pressure wash pavers before sealing them?
Yes! All concrete and paver surfaces should be cleaned before applying any sealer coating. It is very important that the surface is clean because any stains or materials that get trapped under the sealer will not be able to be cleaned after it’s sealed. Pressure washing pavers is just as important as sealing it.
Using the wrong pressure washing tools could also hurt the pavers. A pressure washer with the wrong nozzle could mark or wear the pavers. The best recommended tool is a high volume, low pressure, hot water pressure washer. The hot water cleans the pavers and prepares the surface for the best result sealing job.