We know that the contamination of terrestrial oil is also a common problem in the construction of epoxy floors. In the initial stage of the construction of epoxy floors, the contamination of terrestrial oil should be handled well. Otherwise, the contamination of terrestrial oil will not pose a great risk to the construction quality of the late floors. The adhesive force between the coating and the base is very strong, and the oil permeability is very strong. It is more and more difficult to remove the oil stain because it touches the base for a long time.
In the absence of an ab initio concrete base, it is customary to strengthen the bond between the epoxy floor coating and the base by choosing the following methods according to the oil pollution level.
Clean the land with hydrochloric acid first, then wash the land with alkali. Clean the land with hydrochloric acid. The concentration of hydrochloric acid can't be too high. Use 4-5% to wash the land with heavy oil. Use this way to pay attention to safety and ventilation. If you don't pay attention to being spilled by hydrochloric acid, you need to wash it with water under investigation. Wash the land. Use a kilogram of caustic soda mixed with 20 kilograms of water to scrape the land. The goal is to neutralize the hydrochloric acid on the land. The epoxy floor is not resistant to strong hydrochloric acid.
Flame Burning: This method is useful only for combustible oils. Be careful not to burn too much, or it will burst the concrete base.
It is only used for thin layer of oil pollution (<2mm). It is used to grind the eroded cement and oil from the land with a grinder, and then to clean the land with inspected water.
After the above treatment, it is useful to improve the adhesion between the epoxy floor paint coating and the base, but the epoxy base surface construction can never be stable, so the delamination will disappear after the last few repairs and all removal of the underlying oil pollution. Companies with oil pollution and land leakage and auto repair plants first make epoxy floor paint and then start production.
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