Long-term use of concrete floors will cause the coating paint to age, peel off, wear and crack, etc. Therefore, is must to remove epoxy coating and renovation.
The coating on the surface of epoxy concrete floor is a method of coating the concrete surface. The coating includes paint, epoxy resin, paint, cement mortar, etc. It is mainly used to beautify and decorate the concrete floor, which has the functions of anti-seepage, dust-proof, easy disinfection and cleaning, etc.
There are three main ways to remove epoxy floor coating from concrete floors:
Mechanical removal, using a floor grinder
Chemical removal, use epoxy paint remover
Heat removal, via high temperature or flame
Necessary security awareness
Regardless of which method you choose to remove epoxy coating old paint from your concrete floor, you need to take safety precautions before use. When removing epoxy resin, a large amount of harmful dust or chemical fumes will be produced.
If people inhale these harmful substances, it will have a serious impact on your body. Therefore, make sure there are no other people in the surrounding environment during construction, and please also prepare safety equipment, such as wearing goggles and dust masks, etc.
How to remove epoxy from concrete floors to make your concrete floor more durable and clean
Mechanical removal of epoxy resin
Mechanical removal uses an abrasive method to remove old hardened epoxy coating from concrete floors. This is the best way to remove epoxy from concrete the preferred way. Because this method is so effective, common grinding machines include handheld electric grinders, angle grinders, and floor polishers.
The following are the specific steps:
- Clean the concrete floor surface: Anything on the surface of the area must be removed, and the floor needs to be cleaned as well. Clean the dust, debris and residue on the ground to avoid damage to the grinder.
- Choose the right diamond grinding disc:There are many types of diamond abrasive disc for removing epoxy resin. Different diamond abrasive blocks will also affect the polishing effect. Choose the appropriate diamond abrasive disc according to the hardness of the concrete floor and the material and thickness of the coating. Common diamond grinding disc include resin grinding disc and metal grinding disc. Metal grinding disc their diamond grit are available in 30/50/100/200/400 and suitable for treating hard concrete floors and for thick-coating. Resin grinding disc are avaible in 50/100/200/400/800/1500/3000 are suitable for treating softer concrete floors and thin coatings.
- Coarse grinding:To remove the coating on the ground, first use a lower diamond grit grinding disc to start grinding, such as a 30# . Generally, 2-3 times of grinding are required. The grinding direction should be consistent with the coating. The direction should be vertical to avoid scratches on the surface until the floor surface is flat.
- Medium grind:Use a 200# diamond grinding disc for medium grinding to remove burrs and grinding marks on the floor surface.
- Fine grinding:This step is to finely grind and polish the surface to make the floor smoother and brighter. Choose a diamond grinding block with a higher diamond grit, such as 1500#, and polish until it is as smooth as a mirror.
Chemical removal epoxy resin
Use chemicals to remove epoxy coatings from concrete.
For example:
acid
base
Organic solvents
acetone
This is also an easy way to remove epoxy coatings
Use chemical solvents to remove epoxy resin from concrete. First, clean the surface. Then apply the chemical agent to the concrete surface, covering the entire area of the coating. Wait for the chemical agent to react with the coating until the epoxy resin is fully Soften and dissolve, then scrape and remove the chemical with clean water or a grinder.
Heat removal of epoxy resin
Use high temperature or flame to remove concrete surface coating. Thermal equipment includes flame gun and blowtorch. The paint is burned and softened by high-temperature heating, defoamed, and then removed with a shovel.
The above is my recommendation on how to remove the coating from concrete. The specific selection method depends on the thickness of your concrete and the material and thickness of the coating. Of course, the most effective and cleanest way to remove the coating is to remove it with a grinder.
After the coating is removed, the concrete surface still needs to be maintained to extend the service life of the floor.
Thank you for reading and leaving your wonderful comments and opinions.
