How to make a primer with your own hands?

A primer is necessary in order to increase the adhesion of decorative finishes to wood, concrete, cement, metal and other surfaces. The primer provides a strong and good adhesion to various decorative materials. Polymers in its composition increase the level of waterproofing, therefore, the consumption of paints and varnishes for the topcoat decreases.

Primer mixes contain antiseptics, therefore, the risk of mold or mildew is significantly reduced. Also, the primer layer acts as a surface protection against adverse environmental influences..

Peculiarities

Making a primer solution with your own hands is not particularly difficult, and the necessary materials and tools are easy to find in hardware stores. The composition of the solution is determined by the field of application of the primer (walls, floor), its main purpose (protection, finish strength or the need for enhanced adhesion) and the type of surface to be treated. Wood primer is a little more difficult because the material is susceptible to mold..

In this case, you can just make your own primer, which will not be much inferior to the store one.

Advantages and disadvantages

In hardware stores, there is a huge selection of high-quality primers, but they have a considerable price. It will be much cheaper to prepare the primer yourself. Homemade primer solution is based on the use of PVA construction glue.

PVA glue provides such functions of a conventional commercially available primer as:

  • increased adhesion;
  • sufficient water resistance;
  • if antiseptics are added to the solution, then antibacterial properties will also be present.

But, despite these advantages, such a primer solution can eventually peel off from the surface due to improper mixing of glue with water. Also, the glue turns yellow after a while, and these spots appear on the front side of the decorative coating. This can be avoided by applying a thick layer of topcoat (e.g. paint).

Thus, if external beauty is not very important, or if expensive wallpaper or paints are not used, then a self-prepared primer based on PVA glue will be very useful..

Recipes of different types and compositions

When preparing a primer on your own, it is important to observe the correct proportions, as well as take into account the main purpose and type of surface. A special solution is made for wooden surfaces, mixtures for concrete or drywall are not suitable for them.

Primers with the following properties are distinguished by purpose:

  • for deep penetration;
  • strengthening;
  • with an increased level of adhesion.

To make a primer, you will need the following tools:

  • enameled container;
  • scapula;
  • mixer with whisk.

The simplest recipe for a primer solution includes the following ingredients: PVA building glue and water.

Making a primer consists of the following steps:

  • It is necessary to pour liquid PVA glue into the prepared container and add water in a ratio of 1: 2.
  • Mix the materials thoroughly with a spatula or mixer until a homogeneous mixture is obtained. Avoid the formation of a watery film on the surface.

Such a recipe is best suited for the treatment of non-residential premises (basements, storage rooms), because it provides excellent moisture resistance, but at the same time does not guarantee long-term external beauty..

If you dilute cement or chalk in a simple glue-based composition, you can get a primer with deep penetration. The sequence of actions is almost identical, but now the ratio of glue and water is 1: 8. Add a small amount of cement (or chalk) to the mixed materials and stir thoroughly until smooth.

The strengthening primer solution also consists of glue (you can take a carpentry one), but now 65% laundry soap and copper sulfate are added to it. The proportions of glue, copper sulfate and laundry soap are 5: 1: 2.

Making a reinforcing primer consists of the following actions:

  • It is necessary to grind the laundry soap (you can use a regular grater).
  • Pour water into an enameled container and boil it.
  • Then soap is added to the water, and the mixture must be cooked until a homogeneous mass, stirring occasionally with a wooden spatula.
  • Copper sulfate and glue are added. Continue simmering on low heat for about 30 minutes, stirring with a spatula, and being careful not to lump.

After 30 minutes, you can remove the solution from the heat, and after it cools down, you need to strain it. After these works, the finished primer can be used..

If the lumps are not removed, then you can use a construction mixer.

To ensure the best adhesion (adhesion of materials), a suitable mortar can be made at home..

This will require the following components:

  • crushed laundry soap;
  • dry glue (preferably paint);
  • aluminum alum;
  • chalk;
  • drying oil.

Cooking procedure:

  • First, boil 1 liter of water, cool down.
  • Then aluminum alum (250 g) is poured with hot cooled water. In an enameled container, it is necessary to dilute dry glue (200 g) and put it to cook on low heat.
  • Gradually, aluminum alum, grated laundry soap (200 g) and drying oil (30 g) are added to the glue..
  • It is necessary to cook the mixture and mix it thoroughly, then add crushed chalk (2 kg) later. If there is not enough water, then it can be added.
  • Boil the primer solution for another 30 minutes and allow to cool before use..

Choosing a primer for wood surfaces is not easy, as wood is a soft material that is susceptible to moisture. The primer for wood should include drying oil, acrylic, glue or shellac. A solution with an enhanced level of adhesion can also be used for wood due to the presence of drying oil in the composition. Also, in the case of a wooden surface, it is important not only to choose the right type of primer, but also to follow the correct technology for applying the solution. In total, it is applied from 2 layers, but preferably 3. Each of them must dry for an hour before applying the next.

After applying the first layer, it is necessary to clean the wood to smooth out its fibers..

Tips & Tricks

The self-prepared primer retains its technical characteristics and provides a high-quality coating only within 24 hours from the moment of preparation. Therefore, it is not worth making a large amount of the primer solution at once. In general, it is advisable not to delay the surface treatment with a homemade mixture.

If there is no PVA building glue, then you can purchase a carpentry or stationery. But still, it is recommended not to experiment and use a construction glue suitable for these purposes..

It is better to use a special construction mixer to stir the primer during the manufacturing process. If you have to work with a conventional mixer, then after stirring it must be washed immediately, as it may become unusable. In addition, the construction mixer will help to achieve the desired composition homogeneity without applying much effort..

Before treating the entire surface, it is advisable to make sure that the mortar is made correctly and will not flake off. To do this, you need to apply a primer to a small and unobtrusive area. If the applied solution acquires a bright white color, then it is necessary to add more water to the primer. A high-quality primer should leave a not very noticeable mark.

After the solution has acquired the desired shade, it is necessary to wait for it to dry completely and check for peeling..

If wallpaper is used as a decorative coating, then instead of PVA glue, it is advisable to use a special glue for wallpaper. It does not leave yellow stains and is better absorbed into the surface.

If the surface will be painted with acrylic paint, then it is not necessary to prime the surface before this., since this type of paint itself acts as a primer. Pigmented painting can be done immediately.

It is advisable to strain the ready-made primer solutions through a sieve before application in order to completely eliminate the presence of lumps..

You will learn more about how to make a primer with your own hands in the following video..

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