EPOPRIM two-component anti-corrosion epoxy primer is intended for priming steel, aluminium and galvanized surfaces outdoors. It is recommended to use URETOP polyurethane enamel or EPOTOP 50 epoxy primer-enamel for the top coat. The use of alkyd and urethane alkyd enamels is not permitted. Thanks to the excellent adhesion, as well as the inclusion of effective anti-corrosion pigments in its composition, EPOPRIM primer provides long-term protection of the painted surface against corrosion. Indoors, as well as outdoors when painting objects that are not exposed to intense solar radiation (for example, under a canopy); can be used as a permanent coating with high hardness, abrasion resistance and chemical resistance to diluted alkali and weak acid solutions, as well as solvents, petrol, oils and other chemicals.

Surface preparation:

 Steel surfaces. Rust and dirt must be removed from the surface to be painted beforehand by abrasive metal treatment (sandblasting or shot blasting, manual machining) to a degree of purity of Sa 2½ or St 2. In cases where complete cleaning of the surface from corrosion products is not possible, it is necessary to clean at least the loose rust layer and perform the maximum possible surface treatment with abrasive tools such as sandpaper, steel brush, power grinders, etc. In this case, a possible reduction in the anti-corrosion effectiveness should be taken into account. Prior to painting, aluminium and galvanized surfaces should be degreased and lightly treated with fine-grained sandpaper or a weak abrasive blast, washed with 5% aqueous ammonia solution and dried.

Use:

Before use, stir the semi-finished primer product thoroughly and add the hardener: 18 parts by weight of hardener to 100 parts by weight of semi-finished product. After thorough mixing, the primer should be left for 45 minutes before use. If necessary, dilute the primer to working viscosity with solvents 646, 647, using the following amounts of solvents by weight: 5 to15% – when applied with a paint brush or roller; 10 to 20% – when applied with an air sprayer; 0 to 10% – when applied with airless spray equipment. Use the same solvents to clean the tools. Apply with a paint brush, roller, spray gun or airless spray equipment with a nozzle diameter of 0.011″ to 0.019″. The air and paintable surface temperature during painting must not be lower than +10 °C, relative air humidity – not higher than 85%. The drying time and permissible curing times until the application of the next coats of primer or enamel are given in Table 1. If the time to repainting is longer than specified, additional treatment of EPOPRIM surface with fine sandpaper is recommended to improve the adhesion of subsequent coats. The consumption of EPOPRIM primer is shown in Table 2. Taking into account the strong influence of the thickness of the primer film on the anti-corrosion properties of the coating, the recommended thickness of the primer coat after drying is not less than 50 μm.

Storage:

Store in a tightly sealed container at a temperature not exceeding +30 °C.