Epokron is an anticorrosive primer made of two components: pigments, fillers and modifiers in an epoxy resin solution plus an amine hardener. It is used on steel structures, bridges and pipelines in all climatic regions and placement categories per GOST 15150 and ISO 12944, including burial in soil; the Liteyny Bridge and the Shafirovsky overpass in Saint Petersburg were painted with the Epokron + Kronos-Deko system. The primer goes under polyurethane, acrylic-urethane and epoxy enamels and is applied at temperatures from −10 °C.
| Manufacturer | Kronos SPb — AO “KRONOS SPb”, Saint Petersburg |
|---|---|
| Type | epoxy primers |
| Base | Two-component, solvent-borne: base — pigments, fillers and modifiers in an epoxy resin solution; hardener — solution of a modified amine |
| Colour | grey, red-brown |
| Application method | brush, roller, spatula; air spray (3–4 bar, nozzle 1.8–2.2); airless spray (at least 180 bar, nozzle 0.013–0.025″); thinning max. 10 % with “Kronos-Deko” thinner |
| Application temperature | from −10 to +35 °C; relative humidity max. 85 %; surface at least 3 °C above the dew point; keep the primer for 24 h at a temperature not below +15 °C |
| Drying | to degree 3: 24 h at 5 °C, 16 h at 10 °C, 8 h at 15 °C, 4 h at 20 °C; recoat interval less than 1.5 h; pot life at least 4 h at 20 °C |
| Key properties | for repairs — St 2 per ISO 8501-1 |
| Compatible materials | polyurethane, acrylic-urethane and epoxy enamels, incl. the enamel “Kronos-Deko”; adhesion layer on aluminium and galvanised steel |
| Shelf life | 24 months from the date of manufacture; storage from −40 to +40 °C |
| Standards | TU 2312-158-20504464-2013; STO 01393674-007-2019; OTT-25.220.01-KTN-097-16 (PJSC Transneft) |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
System of the primer “Epokron-TN” and the enamel “Kronos-Deko-TN” for above-ground pipelines and outer tank walls, including under thermal insulation.
Acrylic-urethane primer-enamel for metal, concrete and plastic, applied in two coats without priming, recoat interval 15–30 min.
Light grey pentaphthalic primer for metal and wood, including previously painted surfaces, dries in max. 6 h at 20 °C.
Silver paint for steel structures in temperate and cold climates, applied without a primer on ferrous metals and aluminium alloys.
Factory-applied epoxy coating for the inner surface of trunk gas pipeline pipes that reduces gas-dynamic losses, more than 90 % non-volatile matter.
UV-resistant acrylic-urethane enamel for bridges, tanks and power line towers, categories from C1 to C5M and CX per ISO 12944.
