As a high-quality, high-durability floor decoration material, epoxy flooring is widely used in industrial and commercial places because of its excellent performance and aesthetic effect. However, with time and long-term use, epoxy flooring may experience problems such as abrasion, scratches, delamination, etc., affecting its aesthetics and longevity. Therefore, the removal of the old epoxy floor and the renovation work became a necessary work.
Epoxy floor paint needs to be removed, mainly related to the causes:
There is a problem with the quality of the original epoxy floor paint coating film, which affects the normal use of the situation such as falling off, aging, and cracking
Epoxy floor paint renovation, the existing epoxy floor paint and the original floor paint material conflict, can not be superimposed construction, must be removed.
So how do you get rid of old epoxy?Generally, the mechanical paint removal method is used.
The commonly used mechanical paint removal method mainly includes three methods, namely: mechanical grinding, manual grinding, and high-pressure water jet. And the most common of these 3 methods is mechanical grinding. Because mechanical grinding is faster than manual grinding and more thorough than high-pressure water jets.
The most frequently used is the use of shot blasting machine grinding, this method is also called shot blasting paint removal method
Machinery used: Shot blasting machine.
Advantages: Remove the old coating film of floor paint thoroughly.
Disadvantages: It is easy to polish and remove the old coating film that is not damaged together, which will cause a certain amount of waste.
Precautions: The shot blasting machine is operated by electricity, and the bottom is a high-speed ejection projectile, if the grinding machine does not pay attention to grinding to the wire when turning, it will cause a safety accident.
Steps for the construction of epoxy flooring:
Base surface treatment: Use a grinder to polish the ground to remove cement slag, dust and other debris to ensure that the ground is flat and clean.
Primer construction: evenly coat the primer on the treated ground, and the primer material should have strong adhesion and permeability to ensure the adhesion between the coating and the base layer.
Intermediate coating construction: Mix the epoxy main material and curing agent in proportion, add an appropriate amount of quartz sand and stir evenly, and then evenly lay on the primer to form a certain thickness of coating.
Topcoat construction: Topcoat construction is carried out on the surface of the middle coating after drying, and the topcoat material should have good wear resistance, pressure resistance and aesthetics.
Coating strong permeability sealing coating: In the treatment of clean, flat concrete surfaces, high-pressure airless spraying or roller coating is used to apply a sealing primer to enhance the sealing and adhesion of the coating.
Batch scraping and scraping: The method of scraping putty is used in two batches on the surface of the primer after drying to ensure the wear resistance, pressure resistance and other properties of the floor.
Grinding and cleaning: After the coating is dry, the surface of the floor is sanded to ensure that the surface is flat and smooth, and then cleaned.
Construction completion: After the above steps are completed, the construction of the epoxy floor is completed. It should be noted that the construction process should be carried out in strict accordance with the construction plan and operating procedures to ensure the quality of construction.
In summary, removing the old epoxy floor and carrying out the renovation construction requires detailed evaluation, construction plan formulation, surface cleaning, mechanical paint removal, manual paint removal, washing and drying and other steps. In the construction process, high-quality materials and equipment should be selected, and the operating procedures should be strictly followed to ensure the construction quality and the service life of the floor.