ZFES® anticorrosive zinc-rich composition

Description

Double-packed composition based on zinc paste and ethyl silicate binder.
According to the metal zinc mass content (more than 85 %), the coating meets the operational requirements SSРС Раint 20 (level 1, type II), can be considered as "cold" galvanizing.

Recommended use

Anticorrosive protection of steel articles and structures operated in the atmospheric conditions of all macroclimate areas, types of atmosphere and placement categories according to GOST 15150. The coating is resistant to sea and fresh water, to aqueous solutions of salts (pH = 6.0-9.0), to oil and oil products and can be used in cold and hot utility and drinking water supply system.
Heat resistance in a dry, non-aggressive atmosphere: long-term – plus 150 °C, short-term – plus 200 °C.
The ZFES composition is used as:

• primer in complex systems of anticorrosive protection POLYTON-UR, ISOLEP-mio, ALUMOTAN, FERROTAN, as well as with other top coats on polyurethane, epoxy, vinyl-epoxy, vinyl chloride and copolymer-vinyl chloride bases;
• primer in complex fire-proof systems with the PLAMCOR series;
• an independent anticorrosive coating, including as a friction primer for contact surfaces of steel structures of bridges, buildings and structures.

Welding works are allowed on the ZFES single-layer coating (without deterioration of the quality of a weld).

Certificates, approvals

Certificate of state registration No. RU.66.01.31.013.Е.000134.07.18 dated 11.07.2018
Industrial and civil construction: recommended for use according to GOST 9.401, Guidance document Trust Gidromontazh (РД ГМ-02-18);
Transport construction: STO-01393674-007-2022 Central Research Institute of Transport Construction JSC, STO 483-2010 (frictional coatings).
Oil and Gas Industry: Interdepartmental Commission decision No. 347 P dated 23.10.2000
Power engineering: RD 153-34.1-40.504-00, ORGRES, UES of Russia RJSC.
Shipbuilding: YAKUT 25-069-2001
Approved by testing centers: Central Research Institute of Transport Construction; Lacquer Coating Research Institute, Khotkovo town; Melnikov Central Research and Design Institute of Steel Structures, Institute of Energy Resources Transportation Problems, Research Institute of Applied Chemistry, Lakokraska Research Centre, Central Research Institute of Constructional Material "Prometey", Institute of Ecology and Evolution Problems RAS named after A.N. Severtsov (Russian-Vietnamese Research and Technology Center, Nyachang).

Technical data

Coating
Zinc mass content in dry coating, %	90 %
Thickness of one dry-layer, µm	40 - 50
Adhesion (GOST 31149)	2 grades, not more than
Composition
Density, g/cm3	1,85 - 2,05
Non-volatile matters, %	65,0 - 72,0 %
Viscosity	thixotropic
Pot life at temperature (20±2) °С	8 hours, not less than
Drying time to 3 degree (GOST 19007-73)  at temperature (20±2)°С and  relative air humidity (65±5)%, min	20, not more than

Surface preparation

• to degrease metal surface to 1 grade according to GOST 9.402-2004;
• to do abrasive blasting cleaning to 2 grade according to GOST 9.402 (Sa 2 1/2 ISO 8501-1) with roughening recommended surface profile is acute-angled (grit), surface roughening Rz=30-50 µm.

Use of a hand-worked and power surface cleaning tool is not allowed;

• to remove dust.

Preparing of the ZFES coating before overcoating:

• degrease (if necessary) with aqueous solutions of detergents (pH of solutions should be in the range of 6 to 8), slight degreasing (without grinding) using white spirit is allowed;
• remove moisture and dust.

Application

• mix zinc paste thoroughly to homogenous condition;
• completely (mixing ratio 100:15 by mass, respectively) add the binding agent to the paste with constant stirring;
• mix to homogenous condition before application.

If necessary, the ZFES composition should be diluted to the working viscosity:
- for airless spray from 20 to 50 seconds;
- for conventional spray from 20 to 30 seconds.
ZFES is recommended to be applied at a temperature from minus 15 °С to plus 40 °С and relative air humidity from 30 % to 80 % (aimed from 50 % to 80 %). The temperature of the surface to be painted must be above the dew point by at least 3 °C, but not above plus 40 °C. When painting, the temperature of the material should not be below plus 15 °C. When carrying out painting work below 0 °C, the surface to be painted must be free from snow, ice or frost.
Apply 2-5 layers by airless, conventional (air) spray, brush/roller (striped painting).
Exceeding the total thickness of the coating by more than 200 µm can lead to cracking and deterioration of the adhesion of the coating to the metal.

Storage and handling

The composition is delivered in packages: base and binding agent packed in metal buckets, metal cans and plastic fuel cans respectively depending on the weight.
Storage and transportation conditions of composition components (base and binding agent) – according to GOST 9980.5-2009 (at air temperature from minus 40 to plus 40 °C). The container with composition components shall be protected from direct sunlight and atmospheric condensation.
The shelf life of the zinc paste – 12 months, binding agent – 6 months starting with the manufacture date.

Precautions

When working with the composition, one shall observe the existing sectoral standard norms and requirements and safety measures as specified on the package label.
Personal protective equipment (goggles, face masks and respirators) shall be used, inhalation of thinners and contact of the composition or its components with skin, ocular mucosa, respiratory channels shall be avoided; use inside the premises is allowed only in case sufficient ventilation is provided.
The composition is classified as a fire-hazardous material. The ZFES coating is fire-proof, non-toxic, refers to materials that do not spread the flame over the surface.

The information is of general character, without consideration to the object specific nature. Use of materials for other purposes not specified here or in case other influencing factors are present shall be approved by the VMP Holding CJSC in writing. In case of absence of such approval the manufacturer is not held liable for the improper use of the material and the buyer falls from the right to present claims connected with the coating quality.