Acid primer for a car: rules for use and rating of the best
Content
Acidic soil is combustible and toxic. When working with it, it is imperative to observe basic precautions: work is not allowed near open flames and faulty electrical appliances, heating systems.
Corrosion is the main enemy of motorists. Acid primer for cars helps to get rid of it, preventing it from reappearing. This tool will help protect the car without spending a lot of money.
What is an acid primer for cars
This is the name of a special primer, produced in liquid form and packaged in aerosol cans or cans. Regardless of the type and manufacturer, it always contains two main active ingredients: phosphoric acid and zinc.
It is used to form a durable protective layer on the surface of the treated metal, it is applied after mechanical processing of the body and before the start of its painting.
All of these tools have a number of important advantages:
- Resistance to significant changes in temperature and humidity is important for the reagent used to treat car bodies.
- High moisture resistance - the primer is not afraid of constant exposure to moisture, which is also important in the case of painting a vehicle.
- Protection of metal from aggressive chemical environments - if an acid primer for cars was not used to repair a car that “baths” in reagents every winter, the work will be useless.
- Ease of use - you don't need to be a professional locksmith with years of experience to apply a protective compound.
It must be remembered that when using "acid" epoxy coatings should not be applied over it, as they help to neutralize the effect of the converter.
Acid primer for cars: application
A feature of the primer is its primacy - it is applied strictly before the start of painting. The second feature is the need to apply a thin, uniform layer. It must be remembered that the meaning of using the composition is the conversion of rust, and not the alignment of minor flaws in bodywork.
When using an acid primer on metal to repair a machine, it is strictly forbidden to apply paint directly to it. After it dries, you need to apply a second layer of acrylic primer (or putty, and then primer), and only then proceed to painting.
Acid soil on the body
Any acid primer on rust for auto repair fits perfectly on galvanized, chrome and aluminum surfaces, as well as on bare metal, welding and other materials. But it must be remembered that this composition is strictly forbidden to be applied to materials coated with polyester-based compositions. Neglect of this rule leads to the destruction of the protective layer with all the ensuing consequences.
Importance of following safety precautions
Acidic soil is combustible and toxic. When working with it, it is imperative to observe basic precautions: work is not allowed near open flames and faulty electrical appliances, heating systems.
Primer with acid for cars: rating of the best
Despite the abundance of primers on sale, there are not so many “working” products among them. If you need a “working” acid primer for rusty metal for cars, we suggest using our rating.
Acid adhesive primer MonoWash
| Features | |
| Container volume, ml | 400 |
| Waiting time between layers, min. | 10-15 |
| Compatible with professional primers, fillers, enamels | The composition is allowed to be used with all known auto chemicals |
| What materials can be applied | Good compatibility with steel, galvanized surfaces, plastic |
| Working temperature | At least 17°C |
| Features | The manufacturer claims that the shape of the spray nozzle selected by him ideally reproduces the "torch" of professional spray guns. |
This acid primer for car repair in cans (reviews confirm this) can be successfully used in all cases of restoring the integrity of the body, when it is necessary to prevent the spread of corrosion. It is recommended to use the product before applying the sealant to the joints of body parts.
Based on the combination of working properties, we can recognize this particular product as the best - it combines an acceptable cost, versatility and excellent uniformity of application.
Primer-spray acid 1K, to protect painted metal 400ml Jeta Pro 5558 beige
| Features | |
| Container volume, ml | 400 |
| Waiting time between layers, min. | At least 15 |
| Compatible with professional primers, fillers, enamels | Good, except for polyester-based products |
| What materials can be applied | Putty |
| Working temperature | Minimum 20-21°C |
| Features | Material dries quickly, no sanding required |
Inexpensive and high-quality composition that protects the metal well from the further spread of rust.
Aerosol primer Body 965 WASH PRIMER acidic 1K (transparent) (0,4 l)
| Features | |
| Container volume, ml | 400 |
| Waiting time between layers, min | 15 |
| Compatible with professional primers, fillers, enamels | High |
| What materials can be applied | All metal surfaces |
| Working temperature | Optimally - 19-22 ° C |
| Features | The primer is transparent, which does not change the color of the substrate, simplifying the selection of the final color |
Another high-quality reactive primer for the car, characterized by ease of application and fast "setting".
Car body priming
After application, it quickly reacts and dries. A layer of acrylic can be applied in just half an hour after the composition has completely dried, which saves a lot of time spent on body repairs.
Primer acid Reoflex Washprimer for sanding aerosol
| Features | |
| Container volume, ml | 520 |
| Waiting time between layers, min. | At least 25 minutes |
| Compatible with professional primers, fillers, enamels | Good with all except polyester based formulations |
| What materials can be applied | Aluminium, galvanized and stainless steel, black metal |
| Working temperature | 18-23 ° C |
| Features | Excellent anti-corrosion protection, good adhesion of applied paintwork |
Cheap and inexpensive, this acid-based reactive compound allows you to qualitatively phosphatize the treated surface, protecting the metal from the chemical corrosion process.
Phosphating acid primer Novol Protect 340 with hardener
| Features | |
| Container volume, ml | 200 - the main composition, another 200 - the hardener of the working mixture in a separate bottle |
| Waiting time between layers, min. | At least 15-25 |
| Compatible with professional primers, fillers, enamels | High, except for putties |
| What materials can be applied | Steel, metal, plastics |
| Working temperature | 20-22 ° C |
| Features | You can not putty (the material itself can act as putty). The composition provides excellent adhesion of paint and varnish coatings. The best effect is achieved when used in conjunction with acrylic-based primers. |
This acidic auto primer is characterized by fast curing, excellent resistance to corrosion, and compatibility with most types of materials used by car manufacturers. The working composition, mixing the two components, is prepared immediately before its use.
Acid pickling primer ACID
| Features | |
| Container volume, ml | 450 (there is an option in a liter can) |
| Waiting time between layers, min. | At least 20 |
| Compatible with professional primers, fillers, enamels | Compatible with all professional types of automotive "chemistry" |
| What materials can be applied | Steel, aluminium, plastics, remnants of old paintwork, polyester putty and fiberglass |
| Working temperature | 20-23 ° C |
| Features | Composition is compatible with polyester-based materials |
This acid primer for cars, the use of which is justified during all types of body repairs, protects the metal of the body from corrosion processes. The material is recommended for use in the most critical areas.
But to get the best effect, the company itself recommends completely cleaning off the remnants of the old paintwork. In this case, the surface will be as even as possible, without potholes, drops and “craters”.
How to use acid primer for cars
To get a really high-quality result, the work area needs to be carefully prepared:
- In the room where the work will be carried out, it is necessary to establish exhaust filtration ventilation (the latter is required to prevent dust from entering the surface to be painted).
- A thorough cleaning of the painted area of \uXNUMXb\uXNUMXbthe body is carried out - you need to remove the old paintwork and dirt.
- After stripping, the surface is subjected to final cleaning and degreasing.
- An acid primer is applied for cars in cans or from cans - it all depends on the choice of the car owner (but it is still more convenient to use a primer in cans).
The more evenly the primer layer is applied, the more durable the result of the repair will be, and the more reliably the primer layer will protect the metal from further corrosion. The process itself is not much different from applying other types of primers:
- Thorough surface cleaning.
- Treatment of the cleaned material with degreasing agents.
- After that, a primer is carried out with an auto acid primer, and it must be kept on the treated surface for at least two hours.
- On the dried primer, you can apply the standard "acrylic".
If you need to apply primer to a small area of the body, you can use a brush. To process the entire body, it is preferable to buy a sprayer.
It is necessary to apply the composition in a thin and even layer. In the case of a garage repair, an acid primer for cars in spray cans is ideal for this. It is affordable and easy to use.
Preparation for priming
Primer bottles from some manufacturers have a special spray gun that repeats the characteristics of professional spray guns in shape and spray. Using them, you can achieve excellent results even with the "classic" garage restoration of the car.
Acid primer for cars in cans: reviews
Motorists repairing their cars in garage conditions speak well of all of the above compositions, but note that the best effect can be achieved if primed, following their practical recommendations:
- If shells appear on the metal surface after stripping, you should not rely on the assurances of the manufacturers of two-component primers with hardeners - you should first treat them with putties that are compatible with a specific composition.
- It is advisable to apply two layers of the composition at once - in this case, the acid will penetrate deeper into the layer of the material being processed, and the result of phosphating will be of better quality.
- We must not forget that the atomizers of most spray cans do not give a round torch, but a strip - in order not to waste the material, it is advisable to practice first.
Users also note that between applying layers it is better to make a gap of at least half an hour, and it is advisable to apply acrylic primer the next day, after the “acidic” base has completely dried.
Reviews indicate that "acid" - indeed, simple and reliable means for car repair, both in a specialized box and in a garage. Their use allows, without spending a lot of money, to achieve an acceptable priming result.
