What is acid soil for a car and instructions for its use, which is better
Many people are interested in the question: what is it - acid soil for a car? This is a fairly effective agent that provides a high degree of adhesion and is distinguished by pronounced anti-corrosion properties. The main purpose of the substance is considered to be the protection of the metal of the car body from rust. The primer is so named because it hardens with an acid.
What is acid soil and where is it used
An acid primer is a clear product that may have a light green or grayish tint. This substance is also called phosphating. These soil types can differ in composition. However, in any case, they are often used for application on the body of a car.
The main polymer entering into the composition of such a floor is generally polyvinyl butyral. It also contains a small amount of phosphoric acid, zinc chromate or phosphate, talc, isopropyl alcohol and other components.
Zinc chromate is an ingredient that improves the corrosion protection of metal.In an etching primer, phosphoric acid reacts with metal surfaces. In this case, the zinc chromate does not interact with the metal.
In fact, it is allowed to add it to primers with different polymers - for example, epoxy or polyurethane. They give the product anti-corrosion characteristics. At the same time, in some countries the use of zinc chromate is prohibited, since it has a high degree of toxicity. In this case, other substances of similar action are used.
Acidic soil has the following beneficial properties:
- withstands strong temperature fluctuations;
- moisture resistant;
- protects the metal from the influence of aggressive factors.
The tool is often used in car repair. It is often applied to different types of metal surfaces:
- stainless steel;
- pure steel;
- aluminum;
- galvanized;
- chrome steel.
At the same time, the use of acid soils also differs in certain restrictions. The substance should not be applied to the load. Also, the composition cannot be used for surfaces treated with epoxy substances.
Advantages and disadvantages of the material
The main benefits of acidic soil are:
- high degree of wear resistance;
- excellent thermal stability - the soil does not change its properties under the influence of high temperatures;
- high resistance to salt formulations and moisture;
- excellent protection of metal surfaces from negative factors;
- rapid hardening - this process takes only 5 minutes;
- resistance to the aggressive effects of petroleum products - these include gasoline and motor oils.
In addition to many advantages, the substance has some disadvantages. Thus, it is considered combustible.In addition, the substance is toxic, therefore, when working with the substance, care should be taken to avoid contact with skin and eyes.
Variety of formulations and recommendations for selection
An acid primer has many differences from an epoxy primer. In addition, there are different types of such a tool:
- Monocomponent. Phosphating primer is often sold in an aerosol can. This greatly simplifies its use. It is also permissible to use a canned primer for spraying with a spray gun. The substance does not need preparation. It is allowed to apply it immediately. After the primer has polymerized, it is allowed to proceed to treatment with an acrylic substance with a hardener.
- Two-component. When purchasing this type of primer, you need to prepare a primer. It is recommended to mix it with an activator. In this case, you can get any consistency - hard or soft. Professional crafters love using solid forms because they provide the strongest film possible. According to the manufacturer's recommendations, the two-component substance should be applied in 1-3 layers. When processing it is necessary to maintain an interval of about 5 minutes.
- Reagent. This option is suitable for clean surfaces. The reactive substance forms a very small layer. Its thickness is 8-13 microns. It forms the basis for subsequent layers.
- Self-etching primer. This substance is a zinc doped primer. It is used to eliminate irregularities and improve the quality of adhesion. The composition acts on the metal. As a result, a layer of solidified polymers is formed.
For work it is permissible to use a one-component or two-component primer. Most craftsmen use 2-component primers.Maximum wear resistance is achieved with the filler primer. It is an important part of the cover.
Ranking of the best acid soils
Acid primers are different - one-component, two-component, reactive. These funds are produced by many brands.
HARD 1:1
This acid soil is offered by a Russian brand. It dries quickly and provides reliable corrosion protection for metal surfaces. The composition improves adhesion to the base coat. The product does not contain chromates. For curing, a reactive catalyst is used, which is included in the kit.
The advantages of the primer are:
- short drying period;
- improved adhesion to the base coat;
- lack of chromates in the composition.
At the same time, the composition also has drawbacks:
- the need to use additional funds;
- high price.
Body 960 Wash Primer
This two-component primer is yellowish in color. It is intended to be applied on galvanized surfaces, stainless steel, aluminum, galvanized coatings. To use the product, the primer must be mixed with a hardener. It is applied to the metal with a layer 10 micrometers thick. It takes 10 minutes to dry the composition.
The surface does not require sanding.
The advantages of the material are:
- the ability to apply to different types of surfaces;
- fast drying;
- no need to grind.
The disadvantages of the coating include:
- the need to mix the composition with a hardener;
- the impossibility of applying the composition on polyester-based coatings.
Furniture
This one-component primer has a gray or olive tint. It has strong anti-corrosion properties.The composition can be used for galvanized, steel and aluminum surfaces. It perfectly protects them from rust.
The advantages of the material are:
- excellent anti-corrosion properties;
- the ability to apply to different types of surfaces.
The disadvantages of the coating include:
- the need to mix the soil with a thinner;
- the impossibility of combining the product with polyester putty.
Radex CR1+1
This two-component primer reliably protects metal surfaces against rust. The kit also contains a hardener. When working, they must be mixed in equal parts. It is particularly important to use this primer for the application on new surfaces and the repair of aluminum. Also, the composition is suitable for processing iron, galvanized and steel car parts. The composition provides a high degree of adhesion and inhibits the development of corrosion.
The advantages of the material include:
- reliable protection of metal from rust;
- the ability to apply to different types of surfaces.
In this case, the substance also has disadvantages:
- the need for prior mixing of the components;
- the need for careful preparation of the surface for the application of the substance.
Reflex 2K 1+1
This two-component primer has a yellowish tint. Acid hardener included. The composition is used for restoration work. It is used for damaged surfaces or in the absence of bodywork paint. It takes 15 minutes to dry. In this case, the thickness of the layer is 10 micrometers.
The advantages of the material are:
- reliable protection of metal against corrosion;
- fast drying;
- the ability to apply to different types of surfaces.
In this case, the substance also has disadvantages:
- the need to mix the composition with a hardener;
- the need for strict adherence to instructions.
Application of acid soils
In order for the composition to give the desired results, it is necessary to strictly adhere to the instructions for use.
We calculate consumption
The approximate consumption of the primer is indicated on the package. It depends on many factors - the characteristics of the surface to be treated, the conditions of use, the number of layers.
Tools required
It is allowed to apply an acid primer in different ways. Depending on this, you will need some tools. It can be a brush, a spray gun or special devices that use electricity.
Before starting work, it is imperative to prepare personal protective equipment. This primer contains toxic components. Therefore, you should use it very carefully.
Application methods
To achieve the desired results, it is important to apply the composition correctly. The bootstrapping process is considered quite simple. It is similar to using other types of primer. In this case, it is recommended to proceed as follows:
- Clean and wash the support carefully.
- Treat the surface with degreasing agents or use common solvents.
- Apply a coat of primer. If it is necessary to process a small area, then all the work is done with a brush. It is recommended to use a spray gun to spray the whole body. Don't make the layer too thick or pour too much on the body. 1 thin layer will provide reliable protection.
- Apply a standard acrylic primer. It is recommended to use a gun to obtain an even finish. Using a brush can create an uneven surface.In this case, bald spots and layers of different thicknesses can form on it.
Drying time
It is important to wait until it is completely dry before trying to coat the acid primer with other compounds. It usually takes 2 hours to form a protective film on the metal.
Errors when working with acidic soil
Novice masters make various mistakes when working with an acid primer:
- do not prepare the surface for applying the mixture;
- does not withstand the required drying time;
- do not use personal protective equipment.
Recommendations from the masters
In order for the use of an acid primer to bring the desired results, it is important to adhere to the following recommendations of experienced craftsmen:
- Before starting work, the surface must be cleaned to bare metal.It is imperative to remove all dust, dirt, old finishing materials, including paint and putty.
- Protect areas that do not need to be touched when applying an acid primer. The easiest way is to seal them with tape.
- Degrease the surface. Sometimes it may be necessary to sand. For this, sandpaper of a certain degree of grain is used.
- Use personal protective equipment. An acid primer is considered quite toxic. Therefore, when working with it, it is important to use a respirator, thick clothes and rubber gloves.
Acid primer is an effective agent that is often used to treat car bodywork. In this case, it is important to strictly follow the instructions for applying the substance and observe safety rules.