With the continuous development of society, the use of real stone paint has gradually been promoted. Generally, this product is used to paint exterior walls, which can reflect the texture of natural stone and be suitable for various climates. At the same time, it has a relatively long service life. But sometimes it is found that the product has fallen off in patches, so what is the reason for this?
1、 Poor quality and viscosity of putty
Insufficient adhesive content in putty can cause the putty itself to lose powder. If the structure of the putty itself is not strong, even the best topcoat can be easily peeled off from the wall.
2、 Poor quality of primer, ineffective
True stone paint is used to apply primer: firstly, it seals alkali to prevent alkali from seeping into the surface and affecting the visual effect of the surface. The second is to fix the bottom, penetrate to the base layer, tighten the putty layer, and play a role in connecting the putty and the topcoat. If the primer cannot firmly secure the putty, it will lose its function and the latex paint will be able to peel off from the wall after application.
3、 Apply primer before the putty dries
The drying time of putty is closely related to the climatic conditions at that time. If the weather is good and the air humidity is not high, the time required for the putty layer to dry will be shorter, otherwise it will be longer. You must wait until the putty layer is completely dry before polishing and applying real stone paint.
4、 There is too much residual ash on the wall
Too much residual ash can also affect the wall and putty layering. If you want to avoid some common paint problems, you should avoid some common mistakes during construction, such as basic cleaning of the wall, paying attention to the humidity of the wall, selecting appropriate putty, using primer, and not directly applying paint, etc.
The above is an introduction to the reasons for the peeling off of real stone paint, mainly due to poor quality and viscosity of putty, poor quality of primer that does not work, applying primer before putty dries, and too much residual ash on the wall. Therefore, after understanding the reasons behind it, we should pay attention to these aspects during construction.
