Wall putty is an important and necessary material for preparing and fixing the surfaces of the walls before painting them with the appropriate paint, as the putty fills the voids, covers the holes, hides scratches and cracks in the walls, and gives a smooth surface prepared for applying different colors.

In this article, we will learn about wall putty and the basics of its use. And the way to paint the walls with putty.

Types of wall putty

There are many types of putty used for walls and walls, depending on the material they are made of, and knowing them is very essential before you start knowing how to paint walls with putty. There is:

• Putty based on plaster  is distinguished by its low cost, non-shrinkage after drying. However, it has the disadvantage of its low moisture resistance, due to which it is recommended for use only in dry rooms.
• Cement-based putty : It is characterized by its high resistance to moisture, which allows it to be used in rooms with high humidity, such as kitchens and bathrooms. However, the disadvantage is that it has a high shrinkage rate, which may lead to the appearance of small cracks after drying.
• Polymer Sealant : It combines moisture resistance and a low degree of shrinkage, but its price is high compared to other types.

Basic principles of using wall putty

Necessary tools and materials

• paste.
• water.
• Sealant.
• 2 putty knives.
• Ladders or scaffolding for very high places.
• mixing bowl.
• sandpaper.

Wall surface preparation

To ensure the success and effect of wall puttying, the wall preparation phase should not be overlooked and should be completed with great care.

• First, you should  clean the wall to be painted  with putty
• Any dust, dirt, stuck oil, grease or foreign matter should be removed from the wall surface.
• If you want to use wall putty on previously painted surfaces, you must first  remove the inconsistent layer of paint  so as to ensure that the putty adheres to the walls. Also try to remove as much of the previous layers of putty as possible.
• If you want to use wall putty on porous surfaces (cement or chalk), it is recommended to first. Using a substance called “sealer”  before applying the putty.

How to paint walls with putty

To learn how to paint the walls with putty in a professional way, follow these steps:

Slowly pull the putty across the walls, making your motion straight and continuous without interruption.

• After preparing the wall on which the sealant will be applied according to the previous steps, perform the process of  mixing the putty with water if you are using a powdered putty  according to the instructions written on the wall putty package.
• You need to  use 2 putty knives,  one large and one small. As the small putty is applied to the walls, the other is in your other hand, holding a ready-to-use amount of putty. Or the right can use the shovel as a substitute for a small knife.
• To start  stretching the putty on the walls lengthwise,  repeat this process from top to bottom until you complete the wall.
• You may need  ladders or “scaffolding”  to reach higher places.
• He prefers  to make a second layer of putty for the walls  to get a smoother surface. You have to move the putty horizontally from right to left, until you finish the wall.
• Medium  Sand the putty surface  after applying it to the walls with sandpaper.
• The surface is  now ready  for painting.