Problem Solving Forum (22)


Can you provide recommendations on ways to make sure an acid stain can be successfully applied to an existing horizontal concrete surface? I understand that residues such as coatings, curing agents, waxes, or other materials will interfere with the stain’s reaction with the concrete, but can I find out what the substances are so I know how to remove them?


What are the alternatives for removing mildew from previously uncoated concrete block exteriors before coating?


How do you determine the best type of coating for repainting a block or concrete building?


What are the most effective procedures for protecting steel and adjacent concrete?


What are the common moisture tests for vertical, below-grade concrete structures scheduled to receive a high-build, protective lining system?


I’m converting a commercial space and am trying to decide on the floor. Should we polish the concrete floor or coat it? The concrete seems in fair shape, from what we can see under the dried mastic where the old vinyl tiles have been removed.


What is the best way to protect an exposed concrete foundation?


What is the best way to protect an exposed concrete foundation?


When refurbishing an old concrete secondary containment wall around a storage tank, what criteria should be used to determine if a crack can be repaired for coating or if the section of the wall should be rebuilt?


How is it possible to determine if concrete is sound enough to receive a thick-film coating?


How do I prepare an oil-stained, bare concrete floor for coating?


Which is the ideal test method (ASTM/ ISO) to test the flexibility of a lining product (organic coating) to be applied on concrete storage tanks to store brine water?


What should be considered in replacing a wooden deck with one made of concrete, in terms of the options for appearance, color, cost?


What is the difference between concrete "coatings" and "toppings"?


How do concrete admixtures such as hardeners and anti-dust compounds affect coating adhesion? What can be done to minimize negative effects?


What type of material should I use to achieve bright, bold colors that will last on a concrete floor with heavy foot traffic?


How can you determine if a concrete substrate is in suitable condition for application of an acid stain?


I’ve heard about using crystalline admixture or crystalline materials on top of concrete to fill voids and make the substrate less permeable. When is this desirable, and what is the best way to use these materials?


What kind of coating system provides the strongest resistance to staining from hot tires on garage floors and parking decks?


When coating an aged concrete floor, how should one determine the correct sequence of surface preparation among the options of pressure washing and grinding or other concrete removal and roughening methods?


How can I determine when concrete has cured sufficiently to be coated, besides waiting the 28 days typically specified?


Animal fat in slaughterhouses often penetrates concrete surfaces. If the fat is not removed before the concrete is coated, the fat can cause the coating to fail. How do you identify and remove the contamination before coating the concrete?


 
 
   

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