Can corneal haze be corrected?
Haze can be treated with mechanical epithelial debridement or with laser-scrape . Success of these procedures may depend on the morphology of the haze and on the patient’s individual wound healing response. Manual debridement coupled with phototherapeutic keratectomy and mitomycin-C (MMC) can also be performed .
Does polymeric sand haze go away?
The only way that you can get rid of it is to strip the sealer off. Once this is done, you will have to acid clean the white haze until it is gone. Then you will have to start all over again with the polymeric sand.
What dissolves polymeric sand?
The best way to remove polymeric sand from a paver surface is to use a hot water pressure washer at 180°F. The heat will reactivate the polymers in the product and allow the sand to be stripped away.
Should polymeric sand be sealed?
how long after installing polymeric sand can pavers be sealed? Traditionally, concrete paver manufacturers have recommended waiting at least 90 days after polymeric sand installation to apply a protective sealant to a paver surface.
What causes pavers to turn white?
When the calcium hydroxide reaches the surface of the pavers, a chemical reaction occurs with the carbon dioxide in the air. The calcium carbonate creates the whitish haze on the surface of the concrete pavers. As the moisture evaporates off the surface of the pavers, the whitish haze becomes more pronounced.
Does vinegar remove efflorescence?
Vinegar and water solution—Efflorescence can be removed by using a dilute solution of household white vinegar and water. A vinegar and water solution is relatively inexpensive, non-toxic, and easy to obtain, mix and apply. Dilution ratio is 20–50% vinegar in water by volume.
Is efflorescence a serious problem?
Ultimately, efflorescence itself isn’t dangerous. However, it can lead to potential moisture problems that can cause structural damage to building materials. That means if you notice efflorescence in the basement or on concrete and other structures, it’s important to take action.