Epoxy putty: pros and cons

On the modern market of building materials, there is a wide variety of special mixtures that have different purposes and principles of use. Among the huge assortment of offered building materials, it is worth paying attention to epoxy putty, which is used when performing finishing work. With the help of such a mixture, you can reliably repair small cracks, sinks, scratches, as well as level the surface of various materials.

Features of the composition

Epoxy putty has a two-component composition that includes the following substances:

  • epoxy resin filled with fiberglass or metal shavings;
  • hardener.

Mixing of these materials should be carried out immediately before starting the filling work. Strict adherence to the instructions provided by the manufacturer is very important in this process.. It makes no sense to rush in the process of mixing the epoxy putty, since its composition polymerizes within 8 hours.

The main attention should be paid to thorough mixing of the composition, because high-quality material will be obtained only if the components are evenly distributed in the solution..


    Epoxy putty has gained recognition and widespread use in modern construction due to the following series of inherent positive properties:

    • lack of smell;
    • moisture resistance;
    • coating strength;
    • minimum shrinkage rates;
    • resistance to the influence of aggressive liquids;
    • ease of grinding;
    • durability of use.

    Due to the not particularly rapid hardening of the solution, it is possible to thoroughly stir its components until a uniform consistency is obtained. Also, one of the advantages of epoxy putty is the quality of application, which allows you to proceed with further surface finishing without additional priming.. To preserve the basic properties of the mixture, solvents must not be used..

    Epoxy putty is known not only for its high level of resistance to mechanical stress and the destructive effect of chemical compounds, but also for its ability to resist the appearance of mold and mildew. The listed properties explain the popularity of using the composition in question for carrying out not only internal, but also external construction work..

    When choosing an epoxy putty, you should pay attention to its marking, which determines the main properties of the composition. The most popular are the following materials:

    • EP-0020;
    • EP-0010.

    Each of the listed compositions, due to its special characteristics, is used to solve certain problems and has its own recommendations regarding the rules of use..


    Epoxy putty of this marking is used mainly for the purpose of leveling the surface of products made of various materials. On sale, it can usually be found in the form of a thick pasty composition, which is brought to a liquid state by mixing with hardener No. 1 or diethylenetriamine.

    Bringing EP-0010 epoxy putty to a solution of uniform consistency, it can be used as a primer before painting.

    The main characteristics of the putty mixture allow it to be used both indoors and outdoors. The composition is applied both to the primed surface of the product, and without its preliminary priming. The average period of complete polymerization of the primer at an ambient temperature of 18-22 ° C is about a day, and when the temperature rises to 60-70 ° C – 7 hours.

    The material in question can be applied to almost any surface. It should be noted here that epoxy primer EP-0010 has a fairly high elasticity, but when fully dried it forms a durable, smooth layer of red-brown color.

    Grinding of surfaces treated with EP-0010 marking with putty should be carried out only with a wet method, which involves the addition of water.


    Epoxy putty with EP-0020 marking has a finely dispersed filler structure, which provides an economical consumption of the composition for processing products of a certain area.

    However, it should be noted that such a putty is used mainly as a topcoat and is not suitable for applying in a thick layer in order to correct significant defects and irregularities..

    Scope of application

    The main purpose of the epoxy-based putty is to finish surfaces with a variety of structures. It can be used to process concrete, wood, ceramics, plastic and metal. Therefore, the field of use of such compositions is quite diverse and covers almost all spheres of human activity..

    By wood

    Woodworking formulations are designed primarily to minimize the contraction and expansion of the material when exposed to temperature or moisture. The main difference between such a substance is to minimize the shrinkage indicators after drying, as well as to maintain the optimal level of elasticity..

    Wooden surfaces covered with epoxy putty must not be impregnated with stain.

    Such a coating lends itself well to sanding and can be painted in the color you need.. Epoxy wood putty is used to solve the following tasks:

    • repair of flooring;
    • sealing cracks, scratches and gouges;
    • processing of furniture and other interior elements.

    Moisture-resistant mixtures with EP0010 marking are also used for outdoor work and in the repair of swimming facilities.

    For metal

    For leveling metal surfaces, the optimal solution is to use a fast curing epoxy putty, which has excellent adhesion characteristics and is easy to finish sanding. Therefore, this material is in high demand in mechanical engineering..

    The main secret of successful work with an epoxy putty for a metal surface is the use of a solution using a filler in the form of the smallest sawdust from the same material, for example, aluminum, tin or steel.

    In the automotive industry, putty with epoxy resin is used for long-term preservation of a car or treatment of a vehicle body in places of severe damage. The main advantage of the material is the ability to protect the processed raw materials from the destructive effects of rust, which occurs at high humidity..

    On concrete

    The composition of epoxy putty on concrete as a filler usually includes not only cement, but also coarse sand, which contributes to an increase in the adhesion of the treated surface to the work carried out in the future. After impregnation with the material in question, concrete surfaces acquire a rough structure and are ready for plastering.

    Epoxy putty is excellent for leveling concrete wall surfaces and filling cracks. After complete polymerization of the applied composition, it must be thoroughly cleaned.

    For plastic

    Due to its plasticity and excellent adhesion properties, it is possible to use an epoxy-based putty for the restoration of surfaces made of plastic materials. Due to its excellent properties and characteristics, the solution in question is used to restore PVC pipes and some elements of automotive equipment..

    It should be borne in mind that epoxy putty for plastic has a high level of toxicity, therefore, when performing repair work, be sure to use personal protective equipment – respirators or masks.

    Before applying the putty mixture to the plastic part, do not forget to degrease it with a special solvent.. It is advisable to apply a primer to the surface or replace it with a special mixture.

    Subtleties of application

    Epoxy putty with glass window differs in a fairly simple way of use, because for a high-quality surface repair, it is enough to adhere to the following recommendations:

    • The product should be thoroughly cleaned of dust and dirt before processing..
    • If there are oily stains, remove them..
    • The finished putty mixture is applied to the product with a brush, roller or spatula. Sprayer is not suitable for all types of epoxy grout.
    • The applied layer of putty needs to dry until complete polymerization, which takes 6-8 hours.
    • If necessary, the treated surface can be sanded with sandpaper.
    • When applying a putty for a rough finish, do not forget to additionally process the product with a layer of finishing compound, which has a finer filler structure.

    When using epoxy putty, there is no need to pre-prime the surface or remove the old paint coat. White putty is most suitable for the bathroom..


    Today, a wide variety of epoxy putties is presented on the building materials market, which differ not only in the manufacturer, but also in the characteristics of the composition. It is quite difficult for the average consumer to decide on the choice of the composition of a suitable brand at an adequate cost.

    It’s no secret that it is the fame of the manufacturer on the world market and its good reputation that often play a decisive role in the choice of materials for repairs and puttying. Often, well-known brands offer really high-quality and reliable formulations that will help you quickly achieve the expected result and not make you face unforeseen difficulties, such as cracking or uneven coating..

      The most famous brands of epoxy putty are materials from the following manufacturers:

      • Kreps;
      • Gypsum polymer;
      • Ceresit;
      • Bergauf;
      • Knauf;
      • Novol Thermo;
      • Volma;
      • Sea line.

      When choosing a putty mixture of 250 grams to solve the tasks set before you, you should pay attention to the following characteristics of the offered products:

      • purpose;
      • marking;
      • availability of certificates of quality compliance;
      • recognition of the manufacturer in the world market;
      • material consumption per square meter of surface;
      • price;
      • consumer reviews.

      Epoxy putty is a universal compound for sealing cracks and irregularities in almost any material – wood, concrete, plastic, metal. To obtain the desired result, you just need to choose the right type of solution and adhere to the recommendations provided by the manufacturer regarding its use..

      You should also consider basic precautions, for example, do not use flammable material in the vicinity of an open flame, use personal protective equipment in the form of rubber gloves and respirators, avoid contact of toxic composition on the skin, and keep the putty out of the reach of children..

      Before buying a putty mixture, it is advisable to familiarize yourself in advance with reviews of the product variety you have chosen from consumers who have already used it..

      You will learn more about the use of epoxy putty in the following video..

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