How to remove waterproof glue that has turned black?
1、The quality of the waterproof adhesive used for waterproofing does not meet the anti-mold function, and the adhesive is easily affected by water stains, dirt, and oxidation, leading to discoloration and mold growth. If the problem is not severe, simply wipe it with vinegar several times; or use specialized floor cleaning agents such as "Wei Meng Shi" or "Lan Yue Liang," which are readily available in most supermarkets.
2. Please avoid using corrosive chemicals, as they can damage the surface glaze. If the surface cannot be completely cleaned, use the following method: Wet sand the surface with 800# or higher sandpaper, leaving slight marks, and then wipe clean with a soft cloth. This will not damage the brick surface.

How can waterproof glue be removed?
1Use insulating oil
Pour a small amount of insulating oil onto the solidified adhesive. This will quickly soften the adhesive, allowing it to be easily washed away.
2Use alcohol
Simply use a cloth or paper towel dampened with alcohol to wipe it off. For stubborn adhesives, rub back and forth repeatedly, and it will quickly remove.
3Use acetone
Acetone is an organic solvent with a usage method similar to alcohol. It can effectively remove stains and residues with minimal application, providing superior results. It is particularly suitable for large areas and leaves no residue.
4Use banana water
Banana water is an industrial agent that can be dissolved in various organic solvents. It can be used in the same way as alcohol or acetone to remove residual adhesives.
5Use essential oils.
Using camphor oil is primarily due to its alcohol content. Some households may not have a habit of storing alcohol, and camphor oil can be used as a substitute. It can also dissolve waterproof adhesives, effectively removing the adhesive.
6- Use nail polish remover
The following items may not be commonly found in a female's home:* Remover* Since remover is specifically designed to remove nail polish, it also effectively removes waterproof adhesives.* It can be easily cleaned.
7Wear gloves.
Apply a thick layer of hand cream to the waterproof adhesive, then scrub vigorously to remove the residue. This works because the hand cream, being an oily substance, is incompatible with the adhesive and effectively removes it.