Rating of the best primers for cars after rust removal
Content
Anti-corrosion primer for cars is available in cans in the form of a spray or liquid. According to the physico-chemical properties, protective, passivating compounds, rust modifiers, soils with inert and phosphating particles are distinguished.
Automotive rust primer is used in body work to prepare for painting. Preparations have different chemical composition and properties. When using it is necessary to follow the instructions on the packaging exactly.
Types of soil for rust
Properly selected car primer will extend the life of the car, protect it from corrosion. All mixtures for rust control differ in composition and ratio of ingredients. When choosing a soil, consider:
- Type of metal - black or non-ferrous.
- The level of humidity in places where the composition will be used.
- Drying time.
- water;
- alcohol;
- oil;
- mixed.
Anti-corrosion primer for cars is available in cans in the form of a spray or liquid. According to the physico-chemical properties, protective, passivating compounds, rust modifiers, soils with inert and phosphating particles are distinguished.
One-component
One-component primers contain an organic varnish or resin. They are already ready for use. It is enough to stir them and dilute with a solvent. Depending on the main substance of the rust primer, there are:
- Acrylic.
- Glyphthalic.
- Epoxy.
- Perchlorovinyl.
- Phenolic.
- Polyvinyl acetate.
- Epoxy esters.
You need to choose a primer based on the type of coating that will be applied on top. The main components of the layers should be the same. Some substances can be combined with each other, but the consumption will be twice as much. When choosing, it is necessary to clarify this issue in the instructions for the primer.
Two-component
This type of coating is sold in 2 separate packages. Before starting work, the primer base is mixed with a hardener and a solvent is added to obtain the desired consistency.
The convenience of this type of primers is their cost-effectiveness. You can mix the required amount, and store the rest according to the instructions on the package. With this use, the components do not harden for a long time and remain suitable for work.
In turn, two-component mixtures are divided into quick-hardening and soft. According to experts, the first group gives a better coverage, although it is more difficult to work with. It remains for a long time without shrinkage.
Alcohol
The best rust primer for a car is used if urgent work is needed. The composition contains alcohol, which evaporates during operation. Due to this, the coating hardens quickly.
Alcohol-based mixtures are the easiest to use. They do not require additional care after drying. Suitable for high temperature operation.
Types of protective primer against rust
Primers with protective properties have won popularity among motorists and specialists. They have different effects on the metal:
- Form an insulating film on the surface.
- Convert the formed oxides and slow down the process of corrosion.
- They react with iron oxide and create an inert layer on the surface that prevents rust.
The most popular are rust converters.
Passivating
Passivating primers contain chromium compounds. They are resistant to moisture and well protect the metal surface. The protective effect is due not to the chemical, but to the physical properties of the automotive primer. Inert components do not react and do not pass water.
Protective
The primer automobile on a rust contains microscopic particles of metal. Protective primers dry quickly after application. A durable protective coating remains on the treated surface. Such a mixture retains its effect for a long time and is very economical. Consumption per sq. m area is significantly lower than other types of coatings.
Enamels with a protective effect are also produced. They are recommended for use on parts that often come into contact with water.
Phosphating action
Primers of this type are two-component. The composition includes phosphoric acid and inert passivating particles. It has a high degree of adhesion to any metal surfaces. The consumption during application is small.
Phosphating primer with a rust converter for cars, according to reviews, fits well even on galvanized metal. Other protective coatings are unsuitable for this purpose or require a high flow rate during application.
with inert particles
They contain microparticles that do not enter into a chemical reaction with water and oxygen. After drawing form a strong film. Indispensable for the repair and protection of small surfaces. You can prime with a brush manually or through a spray gun. The inert layer binds strongly to the metal and protects it for a long time.
rust modifier
Converters, or modifiers, are applied to areas already covered with rust. The composition of such enamels contains phosphoric acid. It reacts chemically with iron oxide (rust). As a result, a phosphate is formed that is resistant to moisture, oxygen and other adverse factors. At the same time, modifiers make it possible to partially restore the metal surface in places of deep damage.
Rust primer manufacturers
When choosing a primer for rust, the manufacturer of the mixture is important. Russian and foreign companies deserve good reviews:
- Farbox is a Russian manufacturer. The products are intended for the processing of ferrous metals. The low price is combined with good resistance to oils and alkaline solutions.
- Hammerite is a British brand that produces primers and enamels. The composition contains microparticles of heat-resistant glass. The manufacturer also produces universal primers for non-ferrous metals.
- Tikkurila - produces quick-drying compounds for galvanized and aluminum parts. The rust primer on the machine, produced by this company, is resistant to mechanical wear and high temperatures. The composition does not contain lead.
- Teknos produces aerosol primers for rusty and galvanized surfaces containing oils. The mixture adheres well even to uncleaned surfaces and forms a strong protective film.
- Rusty-Stop - the company produces primers designed to prepare cars for painting.
Some manufacturers produce colored primers. For example, Sikkens has developed a Colorbuild line of 6 basic shades.
The best car primers for rust
On the market you can find a large number of primers that differ in price, quality, scope, etc. The highest ratings from users have earned:
- Hi-Gear Primer HG5726 is a quick drying, anti-corrosion one-component rust primer for cars. Produced in the form of an aerosol. After drying it is easy to polish.
- Primer-enamel KUDO is a synthetic mixture for coloring ferrous metals. Suitable for processing already rusted elements. Combines the properties of a primer, rust neutralizer and decorative enamel. It has good adhesion and provides a long-lasting protective effect.
- Epoxy primer spray 1K JETA PRO 5559. One-component primer for automotive rust in a 400 ml can. The composition is easy to apply and dries quickly. Fits well on surfaces made of aluminum, steel, zinc, non-ferrous metals. After complete drying, paint can be applied.
- Primer HB BODY 960 is a rust primer for a car in an aerosol, has a two-component acid composition. Suitable for coating parts made of galvanized or chrome-plated iron, aluminum. Hardener must be purchased separately.
- MOTIP Primer is the best acrylic based car rust primer. Suitable for preparation for any paints, enamels and varnishes. Reliably protects against rust.
The cost of a 400 ml can varies from 300 to 600 rubles.
Applying rust converters before painting a car
When using a rust converter, it is important to follow the instructions on the packaging exactly. The general algorithm for applying funds includes several stages:
- Carefully remove dirt, paint and loose rust from the metal surface. This will require a metal brush or spatula.
- Apply an anti-rust primer for cars from a spray can according to the manufacturer's instructions. Aerosols are sprayed in a thin uniform layer. Apply liquids with a brush or cloth. Be sure to treat the entire affected surface, without missing a single millimeter.
- Leave the treated surface for 12-24 hours so that the composition enters into a chemical reaction with iron oxides. At this time, it is better to place the car in a dry closed hangar or garage. During this time, a protective layer forms on the metal surface.
- Apply a primer for a car in an aerosol to the place where there was rust, suitable in type and composition for the converter. Let her dry completely.
Then the car can be puttied and painted.
High quality rust removers
The converters presented for sale differ in chemical composition, packaging form and cost. The best customer reviews left about brands:
- AGAT Avto Zinkar - 3 in 1 rust primer for cars. Available in plastic spray bottles. The composition includes zinc, manganese and phosphates. Under the action of the transducer, a protective coating is created. Magnesium provides alloying of the metal surface.
- DINITROL RC-800 - sold in plastic bottles. Apply to the surface with a soft brush. After the first layer has dried, it is advisable to repeat the treatment after an hour. For a large surface, you can pour the liquid into a special apparatus.
- PERMATEX Rust Treatment is a quick drying latex based coating. Used to remove rust before painting. Before application, the surface is cleaned of oils, dirt and loose rust. Can be used on wet metal.
Some compounds are toxic and have a strong odor. Before working with them, wear protective gloves, a mask and goggles.