ZFES®-MO

Description

Double-packed heat-resistant ethyl silicate zinc-rich primer consisting of component A (zinc powder) and component B (binding agent).
Complies with ISO 12944.5 (GOST 34667.5) for the content of zinc powder in the coating - more than 80%.

Recommended use

Anti-corrosion protection of steel surfaces, pipelines and equipment (including furnaces, boilers) operated at a constant temperature of minus 60 up to plus 600 °C, in atmospheric conditions of macroclimatic regions with temperate, moderately cold and cold climates, all types of atmosphere and placement categories according to GOST 15150.

Used for:
- protection of heated structures in the atmosphere as:

• self-coating with heat resistance up to plus 400 °C (short-term up to plus 450 °C);
• primer layer in a system with primer-enamel VINICOR-term with the heat resistance of the system up to 540 °C (short-term 600 °C).

- protection of heated structures under thermal insulation as:

• primer layer in a system with primer-enamel VINICOR-term with the heat resistance of the system up to 450 °C (short-term 540 °C).

Certificates, approvals

Approved by testing centers Lacquer Coating Research Institute, Khotkovo town

Technical data

Surface preparation

• to degrease metal surface to 1 grade according to GOST 9.402;
• to do abrasive blast cleaning to 2 grade according to GOST 9.402 (Sa 2 ½ or Sa 3 according to ISO 8501-1). Surface profile is acute-angled (grit), surface roughening 25-60 µm (thin according 
• to ISO 8503-1, G comparator, segment 1-2);
• to remove abrasive and dust.
• Preparing the ZFES-MO coating before applying VINICOR-term:
• to degrease if necessary with detergent MS-01 (TS 2381-095-12288779) or other 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;
• if there are defects, carry out local blast cleaning to degree P Sa 2 ½ (ISO 8501-2) followed by restoration of the coating. Allowed in hard-to-reach places local cleaning with hand or power tools to degree P St 2 (ISO 8501-2);
• to remove dust.

Application

1. Remove the bag of zinc powder (component A) from the barrel.
2. Shake the canister with the binder (component B) several times until a sufficient degree of homogeneity is achieved.
3. Pour approximately 2/3 of the binder into the empty barrel.
4. Shake the canister vigorously until a homogeneous mixture is obtained without sediment at the bottom, then add this mixture to the barrel.
5. Gradually add zinc powder to the barrel with the binder at constant stirring the mixture with a mechanical mixer, maintaining a low mixing speed. To avoid the formation of lumps when mixing components, adding a binder to the zinc powder is not allowed.
6. Thoroughly mix the zinc powder into the binder (at high speed) and stir until a homogeneous mixture is obtained.
7. Filter the mixture through a 30-60 mesh sieve.

During use, constantly stir the material at low speed.
After mixing, the material can be used within 8 hours.
When applying zinc silicate coating, a separate pump must be used to ensure constant mixing of the working mixture.

Primer is recommended to be applied at temperatures from +5 °C to +40 °C and relative air humidity from 30 % to 80 % (aimed 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.
Primer should be applied in one layer by airless, conventional (air) spray, brush/roller. 

Storage and handling

Component A of ZFES-MO is supplied in special bags with a valve, or in in plastic bags packed in metal buckets. Component B is supplied in plastic cans.
Storage and transportation conditions – according to GOST 9980.5 (at air temperature from minus 40 °C to plus 40 °C). The container with primer shall be protected from atmospheric condensation and direct sunlight.
The shelf life of Component A in hermetically enclosed original container is 12 months, Component B – 6 months starting with the manufacture date.

Precautions