Installation 

Can putty be applied to metal? Heat-resistant putty for metal. Features of the use of putty with aluminum

Preparing a body part for repair is the most important starting point for achieving the best quality output. I hope no one will dispute this axiom?

So where should you start?

Let's take the front fender as an example.

To determine the nature of the damage and draw up a correct work plan, the suspected element should be washed properly. Moreover, after water, you should wipe it with White Spirit and a solvent. This action will give us a complete picture of the damage. It should be noted that after a small defect in the wing (scratch or small dent) there may also be chipped paint and other minor defects. And, if it is destined to paint it, then this must be done with all dignity, regardless of different faces.

So, we have found all the defects - what's next? And, then we come to the conclusion that we will have to prime the entire element. Hence, the conclusion is that we remove all defects from the surface.
Imagine that we have a long scratch on the surface of the wing, forming a shallow dent, and several small scratches and chips.
What to do? - The eternal question of the Russian intelligentsia.

I explain point by point:

1. We mat the entire surface of the wing with P220-240 abrasive. You can use an orbital sander, and where you can’t crawl, then manually. On a matted surface, all dents and minor defects seem to appear, and they become better visible.
2. A scratch with a dent must be sanded so that there are no sharp edges of chipped paint (If there is rust, we remove it to zero). Don't be afraid to overdo it. We grind the scratch and its edges with an abrasive (sandpaper) P120. This is a fairly large abrasive grain, with which the best adhesion of the putty to the surface is achieved.
3. Next, we polish minor scratches and chips. We expand them along the plane. So that there are no sharp corners and peeling from the surface.
4. Now, it's time to putty.

If you don’t already know, then great news for you is putty, it’s not alone! She has many varieties. Let's start in order:

2. Putty with aluminum filler (coarse two-component putty - filler, for filling deep dents, as a primary layer). Works great, shrinks a little when dry.

3. Putty "Universal" - (two-component), coarse enough to remove shallow dents and irregularities, usually yellowish in color.

4. Putty "Finish", (two-component) usually white color, handled well. Apply over coarse putty for more precise leveling.

5. One-component putty (completely finishing?) In a tube, for filling micro-scratches and micro-irregularities. I recommend to use for final filling.

After cleaning the repair surface with P120 abrasive, we proceed to puttying. Do not forget to pre-degrease the repair surface. If traces of rust remain on the repair site, they should be treated with a "rust converter" according to the instructions on the bottle.

We knead a coarse putty with a hardener - mixing thoroughly so that there are no pink streaks (usually pink color - hardener) and evenly, with a spatula with light pressure, fill the repair area. Do not try to do this procedure in one go. Apply, wait 10-15 minutes for the putty to set. Usually, 3-4 kneading and lubrication are required to achieve complete filling of the defective area.

The next step is grinding.
We grind with a sandpaper with abrasive grain R120. Carefully, trying not to climb beyond the repair area. (Otherwise, extra scratches - do you need it?)

To achieve safety, cover the repair area with masking tape, preferably in two to three layers. For better control, before sanding, it is strongly recommended to wipe the surface to be treated (dried putty) with black developing powder. It will be easier to control defects (where more putty should be smeared).

I recommend grinding with a special planer, the highest quality processing is achieved.

When sanding a part, pay attention to scuffs. If the metal began to protrude, then rubbing further does not make sense - you need to add putties (to fill the gap formed between the rubbed areas).

Remember! Putty is much softer than paint (varnish), and even more so than metal, so it is wiped off with sandpaper faster and easier. Therefore, if the metal began to show through on the surface to be treated, stop sanding and add another layer of putty.

After sanding the rough putty and achieving the desired result (as they say, “almost at the point”), you should apply the finish on all the suspicious places being processed (as well as on all the places marked with developing powder) and sand it on a planer with P220-240 abrasive. By doing this, you will cut (wipe) the larger risk, applied by preliminary grinding with P120 grit, and also smoothly sand all transitions.

If you want to carry out high-quality repair work to correct bumps on the car body, its surface will require special preparation. It consists in leveling the surface with putty, which performs the following functions:

  • evens out chips, scratches, dents;
  • is an excellent base for the subsequent application of a primer or paint;
  • prevents the penetration of water into microcracks, leading to corrosion.

Leveling the surface of the body with putty

If your car body is made of metal, epoxy putty is a good solution for repairing defects on it.

It is designed for metal surfaces and is characterized by good resistance to chemicals and road agents. Gives minimal shrinkage after application (from 0.1 to 1%). In addition to metal surfaces, it is suitable for plastic components due to the high level of adhesion.


Epoxy putty 250 gr. fast curing

Characteristics and features

Most of the volume of epoxy putty, like any other, is the filler. They are either a neutral substance (mineral) or reinforcing fibers (fiberglass, metal powder). Before using such a composition, you can add a little chalk or kaolin to it so that the mixture does not drain from the vertical surface of the body. Hardening occurs in 20 minutes, and complete drying - within a day.

A feature of the use of putty is that it can be applied to an unprimed surface. Keep in mind that the thickness of the applied material must be minimal for quick setting (optimally - 2 mm), otherwise it may crack during the operation of the car.

You need to apply it:

  • spatula;
  • brush;
  • pneumatic sprayer.

Before applying to the surface of the car, the putty is diluted with a solvent to give it the required consistency. After hardening, it is polished manually (sandpaper of different grain sizes) or mechanically (grinding machine). Dry the paste should be at a temperature not higher than +70 degrees.

Varieties

Depending on the filler, metal putty can be:

  • fine-grained. Gives the most even surface, closing microscopic pores. Suitable as a finish;
  • coarse-grained. After treating the surface of the car with such a tool, careful grinding will be required. The mixture is characterized by high strength, which makes it difficult to process;
  • reinforced. If there are significant defects on the car body (large dents or through holes), it is better to use a composition containing metal powder or fiberglass;
  • lightweight. This epoxy putty is suitable for processing minor scratches and microcracks. It almost does not increase the weight of the parts.

Epoxy putty EP-0010

Depending on its consistency, the mixture can be:

  • in the form of a paste (applied with a spatula);
  • in liquid form. It is best applied to the car with a brush or spray gun.

Also on sale there are compositions that can be dried. natural way, heat or infrared radiation.

Manufacturers

On the Russian market The following manufacturers of putty for metal are represented:

  • loxal. Produces a series of products EPOXSTICK, which is intended for emergency repairs of metal surfaces. The two-component mixture is compatible with most primers and paints. Resistant to moisture, chemicals, UV rays. The mixture must be applied after connection to the car body for 5-7 minutes, and it will harden after 15 minutes. The material gains full strength in 1-2 days;
  • EP-0010. The products are one of the most popular for use on metal automotive surfaces. Sold as a set - putty paste and hardener. The second agent is added to the paste in a ratio of 8.5:100. Products can be applied to the surface undiluted with a spatula or diluted (with solvent R-4 or R-5) with a viscosity of up to 20 s;

Base and hardener of putty EP-0010
  • Mohawk. The American manufacturer produces a series of Epoxy Paste products, which have adhesive properties and are suitable for restoring the smoothness of metal and plastic surfaces. Sold in the form of a ready-made emulsion, which has excellent adhesion to any paint and varnish composition.

Putty mixtures have long been widely used in carrying out repair work. Putty is a powder or paste and is used to eliminate defects or level the surface, followed by applying a finishing finishing material to it. Depending on the type of putty, they are used for processing various bases. One of the widespread finishing materials is epoxy putty - a reliable and durable composition that can handle a variety of surfaces.

What it is?

Epoxy putty is a repair compound made on the basis of epoxy resin. Usually this material is sold complete with a hardener. Their mixing is performed immediately before application.

The putty mixture is applied to the prepared surfaces with a spatula or other tool convenient for each specific case and evenly distributed.

After that, the surface is dried, sanded and treated with a finishing material.

Epoxy putty compounds are used for minor repairs, as well as for large-scale construction for the following purposes:

  • Waterproofing devices;
  • Connections of various materials - metal, ceramics, plastics, wood, concrete;
  • Alignment of various bases, including those made of stone, concrete, wood;
  • Restoration of surfaces and masking of irregularities, butt joints, elimination of various damages - potholes, cracks, chips.

Peculiarities

Epoxy putties can be applied to various materials grounds:

  • Stone and brick;
  • Concrete and foam concrete;
  • Glass and plexiglass;
  • Metal;
  • Plastic;
  • ceramics.

That's why putty is so widely used in various industries:

  • Mechanical engineering;
  • Aircraft industry;
  • Shipbuilding;
  • Construction;
  • Building bridges;
  • erection of metal structures;
  • Construction of pipelines, hydraulic installations.

Putties of this type are used for repair work both outside and inside the premises.

On wooden bases

Epoxy putty helps to eliminate the mobility of this rather capricious material. After all, when the temperature rises, wood tends to expand, and when it decreases, it shrinks. The same processes occur with it when the humidity changes. Unlike other repair materials, epoxy putty does not shrink after drying and retains its elasticity property, which is the most significant moment in working with wood. This type of repair material lends itself well to grinding and painting. The only thing that does not fit well on her is the stain. This should be borne in mind if it is planned to impregnate wooden surfaces with this composition. Epoxy putties for wood surfaces are used for processing wooden frames, doors, furniture, floors.

On metal surfaces

Epoxy compounds when leveling metal bases are an indispensable material.

They have excellent adhesion properties and allow you to create a smooth base after grinding. To achieve the best evenness and smoothness of metal surfaces, special putties are used, which in their composition have sawdust of the same metal crushed into powder as the surface to be treated. Most often, such materials are used to repair dents, scratches and other damage to the car body. Epoxy putties are also used to protect car components from corrosion.

For the treatment of metal surfaces of ships, special grades of putty have been developed.

Concrete

For the processing of such materials, compositions are produced specifically for processing stone surfaces. Coarse sand and cement are usually added to them to improve adhesion to finishing. After processing concrete surfaces with putty, it acquires the desired texture and is ready for further finishing.

To close the cracks in concrete base you can use epoxy glue. If the scope of work is quite large, then sand or cement is added to it as a filler. The result is actually an epoxy putty on concrete. It is filled with potholes or cracks in concrete, leveled and left to dry.

After complete polymerization, the surfaces are ground.

For plastic

The possibility of applying epoxy putty compounds to plastic is due to their good adhesive properties and a high degree of elasticity. Because of this, epoxy compounds are widely used in the repair plastic pipes and restoration of plastic car parts. Putty on plastic perfectly fills all cracks, chips, dents and other kinds of irregularities. The disadvantage of this type of repair material is its increased toxicity, therefore, while working with it, respiratory organs should be protected.

The technology of applying putty on plastic is no different from applying it to other materials. First, you need to assess the scope of work by eye. Then the plastic surfaces are cleaned with sandpaper and degreased. Putty is applied with a rubber spatula, dried and sanded first with coarse sandpaper, and then finer.

After that, paint can be applied to the plastic.

Characteristics and composition

Epoxy-based putty material includes the following components:

  • The main substance resin. It is a brown liquid elastic substance that provides the main specifications final product;
  • Fillers. To make the putty composition more viscous, metal powder, fiberglass, sand or cement are added to it;
  • Hardener. A liquid added to putty to quickly cure a repair coat. Due to its presence, the surface dries faster, which saves time during repair work. Phthalic and maleic anhydrides, as well as carboxylic acids, are used as hardeners.

As you can see, the composition of the putty is quite simple, so some craftsmen easily prepare epoxy putty with their own hands.

This requires resin and appropriate fillers. To prepare putty on wood, sawdust mixed with chalk or gypsum is taken. Metal filings are added to the putty composition for metal, more often aluminum powder; for concrete - fiberglass (can be replaced with sand or cement). Compounds for plastic are made with fiberglass. All components are mixed. A hardener is added to the mixture. At the same time, his volume fraction should be no more than 3% of the total amount of the composition. If the putty is supposed to be applied in hot conditions (more than 25 degrees), then the hardener content can be halved. The resulting composition will begin to harden after about 60 minutes. It will dry completely after 6 hours.

The main characteristics of epoxy putty:

  • Durability and wear resistance. These properties allow this repair material to reliably protect any base from external influences. Epoxy putty prevents the development of corrosion processes, withstands exposure to various chemicals (salt solutions, detergents, gasoline, alkalis, mineral oil), prevents the appearance of mold and fungus. It is these properties that make it possible to use this material in various fields of human activity;
  • Low degree of shrinkage of the material. Due to the fact that epoxy putty has the property of elasticity and contains a very small amount of volatile compounds, the material practically does not change its original volume, which allows it to be applied in a layer of up to 10 mm and not worry that cracks and deformations will appear on the surface;

  • Good adhesive ability. This property makes it possible to use this material for application on surfaces made of concrete, metal, plastic, ceramics, wood and for use in structures operated with constant loads (floors, steps, window sills, car parts);
  • No need to apply primer after use of putty. Putty products can be immediately coated with finishing compounds;
  • Long period of service;
  • Grinding flexibility.

Manufacturers

Today, the market for building and finishing materials is replete with various brands of putty compositions. Most major manufacturing companies building materials, as a rule, have putties in their assortment, including epoxy ones. These include such well-known companies as Tikkurila (Colofill), Teknos (TeknopoxFill), Basf Building Systems (MasterBrace), Bostik (Eponal), Isomat, Novol (Novol Thermo).

VitaChemSibir, Atum Innovative Materials, Kotovskaya Paint Company Kraski klk, Gamma Industrial Paints, Rufa Paintworks, 3Decor, NPO Krasko, Epital, Karbokhim- Astat”, “Perm Paint Company” and many others.

Epoxy putties are supplied to the market in a variety of containers - from small containers (about 250 g) to buckets and barrels of various sizes (they differ from each manufacturer).

How to choose for different surfaces?

The choice of epoxy putty should begin with the type of surface to be treated. You can try to find fillers designed specifically for a particular type of surface, for example, metal, concrete, plastic. Usually such an indication is present on the bank with the finished product. But most of the compositions still have a universal purpose and can be used in combination with different materials.

Domestic companies, as a rule, label their products according to GOST. different types putty material have different composition and slightly different properties.

The operation of metal structures and parts is often accompanied by exposure to aggressive environments. Examples include car bodies, and roof decking with fences and all kinds of frame sheathing. It is not always necessary to correct emerging defects by welding or a leveling tool, but embedding with a primer mixture may well justify itself. And best of all, metal putty with a wide range of protective effects will cope with this operation.

Purpose of coverage

Putty has a protective and restorative effect on metal surfaces. In practice, it is used as an intermediate layer between the structure of the workpiece itself and the outer decorative coating. In some ways, this is a preparatory base for ordinary paint, but designed for increased protection of the base material. For example, heat-resistant putty for metal is able to reflect thermal effects when temperature regime-50...+120 °С, while retaining the primary mechanical properties. Depending on the modification, this agent can provide protection against corrosion, aggressive alkalis, gasoline, weathering and direct contact with water. Therefore, there are special compositions focused on operation in industrial conditions, outdoors, indoors, at electric power plants, etc.

Material composition

A large proportion of almost any putty of this type is epoxy. The remaining parts are various kinds of pigments and modifying additives with plasticizers. For this reason, the coefficient of non-volatile elements is about 90%. The specific set of minor components of metal putty depends on the conditions of use. These can be both neutral substances for filling defects, and reinforcing fibers like fiberglass inclusions that improve physical properties strength. Sometimes additional elements contribute already in the process of preparing the solution. These include chalk or kaolin, which contribute to the rapid hardening and drying of the mixture.

Coating types

Of fundamental importance for the technical and operational qualities of putty is the type of filler used. According to this parameter, the following types of the main component are distinguished:

  • Fine-grained filler. Provides a delicate smoothing effect, masking microscopic pores and forming a smooth surface. This is the best metal putty for cars, which can also be used as a top coat.
  • Lightweight base. Also a kind of fine-grained putty, but without a decorative effect. Suitable for work with small scratches, chips and cracks. hallmark of this composition can be called a modest mass, which has almost no effect on the structural characteristics of the blanks.
  • coarse filler. In this case, the emphasis is not on leveling or preparing the surface for final finishing, but on the rough correction of serious defects on the surface. In essence, this is a primer composition, after which grinding is performed. Coarse-grained fillers are characterized by high strength and generally mechanical stability.
  • Reinforcing base. Even more wear-resistant composition, due to which large damage with through holes is eliminated. Just such compositions contain fiberglass and metal powder.

Preparing the surface for applying putty

Operating conditions and target surface requirements may vary depending on the characteristics of the particular formulation. For example, before there was a separation between the primer and the putty itself, which was applied after the defects had been repaired. Today, the question of in what sequence and how the putty is laid, on the ground or on the metal, is not worth it. There is only one rule - a directly damaged surface, in order to strengthen and protect it, can be treated directly with any compound that contains epoxy. Special and separate primer with other mixtures is not required. Another thing is that the surface should be, if possible, cleaned from traces of corrosion, scale, burnouts and dirt with oil stains.

Preparation of the composition

The putty base is supplied as a dry mix with a volume of 0.25 to 60 kg. Initially, you should count on a consumption of approximately 600-700 g / m 2 with a standard thickness of up to 1 mm. If you plan to use a pneumatic gun for spraying, then the consumption will be even lower - about 200-300 g / m 2, taking into account that the coating thickness is halved. In this ratio, metal putty is prepared for painting for cars. The dry mix consists of two components, one of which is the base, and the second is the hardener. First, the base is mixed with water using a construction drill-mixer at low speeds. Next, a hardener is added and stirring is performed in the same mode for 10 minutes until a homogeneous mass is formed.

Coating laying

Having withstood the finished mixture for 20-30 minutes, they begin work. Laying can be done with a pneumatic sprayer, and a traditional spatula tool, and a complete tube with a small nozzle, if we are talking about a small processing area. Putty is applied to bare metal in equal layers over the entire area and immediately leveled. To distribute the mass throughout the site, it is worth using the plaster rule. Also, do not forget that the mixture, due to the peculiarities of the recipe, does not retain plasticity for long, so the operation should be performed as quickly as possible. According to the instructions, the viability of the mixed putty when applied with a spatula is 1-1.5 hours, and when working with a spray gun - up to 6 hours. After polymerization, the laid and distributed coating is polished with fine abrasives. To do this, it is advisable to use a grinder with a felt wheel. Then you can proceed to decorative paint and varnish activities.

What to consider when using the material?

Experts advise in advance to focus on favorable conditions environment. It is best to perform work at a humidity of no more than 80% and a temperature not lower than +5 ° C. If the material after preparation turned out to be too viscous and causes problems during application (especially for sprayers), then it is worth using special solvents for metal putty - means of grades R-4 and R-5A. Do not forget about the chemically active substances in the composition of the putty. Throughout the entire workflow, it will not be superfluous to use the tools personal protection.

Conclusion

The functions of protecting metal surfaces from various kinds of threats have long been adopted by paint coatings. They protect the material from both light mechanical influences and corrosive processes. But under the conditions of operation of the material in aggressive environments and taking into account the existing damage, the best solution would be the use of putty for metal, which has a repair and restoration effect. Its main advantage is that it does not allow existing foci of damage to continue the destruction of the structure from the inside. In addition, the protective properties of many epoxy primers are superior to alternative coatings.

Also material good quality will be distinguished by good compatibility with finishing paints or varnishes, elasticity, which should be observed even after complete drying. In our store there is always a high-quality metal putty, the price of which will remain within the affordable range. We offer customers only proven products from the world's leading manufacturers, sell them in different price categories, and provide a long-term guarantee. Turning to us, you will make a profitable purchase, and you will be able to receive convenient service, delivery at the time you need and other useful services.

Types of putty and its quality

This material is offered in a wide range, and among its variety it is worth noting two-component solutions, this is a polyester putty for metal, which is in demand due to its reliability and versatility. Nitro-fillers and epoxy solutions are also very interesting in application. If you need a paintable metal filler, two-component solutions will have many advantages, especially if the damage is quite serious, since this material can be applied in several layers. It is also worth noting that this is a heat-resistant putty for metal, capable of withstanding significant temperature changes.

Looking for optimal solution you can refer to our assortment - we have best option for any situation. And if you have any problems with the choice - call, contact our consultants, and they will provide you with a competent answer. In our store you will always find inexpensive and quality materials, which will please with their properties. Contact us and make profitable, truly useful purchases!