Epoxy primer for a car - how to use it correctly, ranking the best
Content
The primer mixture is produced in jars or in the form of a spray. They do not differ in composition. But epoxy primer for cars, which is sold in cans, is more convenient to use. Online stores offer a wide variety of aerosol mixtures. Based on the reviews, we have compiled a rating of the best.
For auto repair, craftsmen prefer to use an epoxy primer for metal. It has high anti-corrosion properties, protects the surface from water, and serves as a good adhesive material.
What is epoxy primer for car
Before painting the car, an intermediate layer is applied, which ensures the adhesion of the metal and the finish coat. Auto repairers work with various types of bases, but epoxy automotive primer has been in high demand lately. It is made from resin and anti-corrosion additives. Due to its composition, epoxy has the following qualities:
- resistance to mechanical damage;
- waterproof;
- anti-corrosion;
- heat resistance;
- high adhesion;
- durability;
- environmental friendliness.
Despite the abundance of positive characteristics, epoxy primer is mainly used to protect cars from rust. But no matter how many advantages, there are always disadvantages. The mixture dries for a long time - at 20 ° C, the drying time takes at least 12 hours. It is unacceptable to increase the temperature in order to speed up the drying process. This will lead to the appearance of bubbles and cracks, which will not allow you to properly cover the surface with paint and varnish material.
Epoxy primer for cars in cans: rating of the best
The primer mixture is produced in jars or in the form of a spray. They do not differ in composition. But epoxy primer for cars, which is sold in cans, is more convenient to use. Online stores offer a wide variety of aerosol mixtures. Based on the reviews, we have compiled a rating of the best.
ReoFlex epoxy primer with hardener
Primer "Reoflex" contains resins and additional substances that prevent the occurrence of rust, provide strong adhesion, protect the surface from moisture. The material is used in the repair of cars and trucks, trailers. Due to its high water-resistant properties, the primer mixture is suitable for processing boats and metal products that are often in contact with water. Also, the primer acts as an insulating material applied between incompatible paint and varnish solutions.
ReoFlex epoxy primer with hardener
| Manufacturer | Reoflex |
| Number of components | Two-component |
| Surface for processing | Metal, wood, plastic, glass, concrete |
| appointment | Surface leveling, rust protection |
| Color | Gray |
| Volume | 0,8 + 0,2 l |
| Additionally | Requires mixing with the hardener included in the kit |
Epoxy primer spray 1K for protecting metal and isolating old paintwork materials 400 ml JETA PRO 5559 gray
Single-component primer suitable for car bodywork prior to final painting. It provides high protection against corrosion, has excellent adhesion to zinc, aluminum, non-ferrous metals, steel. Primer PRO 5559 dries quickly and does not require additional sanding. If weeds have formed during the work, then it should be removed with sandpaper 20 minutes after priming. It is necessary to use an epoxy primer for a car at an air temperature ranging from +15 to +30 ° C. Application of subsequent coatings is possible only after the complete drying of the solution.
| Manufacturer | Pro Life |
| Number of components | Single component |
| Surface for processing | Metal, zinc, aluminium, steel |
| appointment | Rust protection, insulation, paintable |
| Color | Gray |
| Volume | 400 ml |
Epoxy primer Craftsmen.store ART Primer 900 g
Two-component epoxy primer suitable for painting wooden car parts. It serves as a background for a painting painted by pouring and mixing synthetic resins of different colors. It is acceptable to use acrylic paint and alcohol-based ink to create a drawing. The material is often used to decorate individual elements of the car interior. The mixture makes the coating smooth and semi-gloss. The auto epoxy primer comes in white, which can be tinted with any Craft Resin Tint to create the desired shade.
| Manufacturer | craftsmen.store |
| Number of components | Two-component |
| Surface for processing | Tree |
| appointment | For drawing |
| Color | White |
| Volume | 900 g |
Epoxy primer 1K spray gray
They are used for small jobs - local removal of scratches on a car, preparation of a zone for a new color, wiping the filler primer. The mixture has high anti-corrosion properties, adheres well to any kind of substrate, practically does not give dusting. Epoxy primer 1K is designed for cars and is used for application on metal, zinc, aluminum, steel. The drying time of the material is 20-30 minutes, which allows the use of the mixture for urgent work.
Epoxy primer 1K spray gray
| Manufacturer | Pro Life |
| Number of components | Single component |
| Surface for processing | Metal, zinc, aluminium, steel |
| appointment | Surface leveling |
| Color | Gray |
| Volume | 400 ml |
Epoxy primer Hi-Gear zinc, aerosol, 397 g
Fast drying primer ideal for welding and rust prone steel body parts. The composition of the mixture contains galvanic zinc, which effectively prevents the formation of corrosion on chips and places where the paint is damaged. The aerosol epoxy primer does not run down the metal, so for the treatment of auto elements there is no need to place them strictly on a flat surface. The advantage of the material is also that it is compatible with any type of automotive enamels.
| Manufacturer | Hi Gear |
| Number of components | Single component |
| Surface for processing | Steel |
| appointment | Rust protection, paintable |
| Color | Gray |
| Volume | 397 g |
How to use epoxy primer for cars
The soil mixture quickly "sticks" to the surface, so it is important to process according to the instructions. To repair a car, an epoxy primer is applied as follows:
- Sand the metal before using primer.
- Stir the mixture if it's in a can, or give the can a good shake if it's a spray.
- For better flow, mix primer with hardener and thinner.
- Apply the material in 1-2 coats, drying between coats for 30 minutes.
- Before filling or painting, remove the bumps with scotch brite or sanding paper.
- Carry out painting after complete drying of the soil mixture.
Depending on the choice of mixture, the drying speed can reach both 30 minutes and 12 hours. Therefore, before using the epoxy metal primer purchased for your car, read the instructions for how to use the mixture. It is always included with the purchase of the product.
How to prime a car with acid and epoxy primer
In addition to an epoxy-based primer, you can choose a mixture consisting of phosphoric acid. Both materials are used for primary priming, but preference should be given to only one of them. Do not use epoxy and acid primer for metal for cars at the same time.
How to prime a car with acid and epoxy primer
Primer based on phosphoric acid should be chosen when:
- applying to a large area that cannot be dried under suitable conditions;
- coating of "pure" metal without traces of corrosion;
- priming material that has undergone sandblasting.
If the surface used is ribbed or has a minimal trace of rust, then an epoxy primer is used. It does not react with metal and completely stops the process of rust growth. This happens due to the overlap of oxygen to the problem area. In contrast to epoxy, acid, on the contrary, forms salts upon contact with corrosion residues, which only aggravate the growth of plaque.
To properly prime the car with epoxy, you must:
- Apply a thin first coat.
- Apply a second coat, maintaining an interval of 20-30 minutes.
To properly prime the car with acid, you must:
- Completely clean the base.
- Treat the surface with a disinfectant.
- Apply the mixture in a thin layer with a sprayer.
- Maintain an interval of 2 hours.
- Apply standard primer.
Be sure to pay attention to the external conditions under which the work is carried out. The room should be free of drafts, dirt and dust. Use personal safety equipment: goggles, respirator mask, gloves.
