Epoxy micaceous iron oxide intermediate paint

K9302 Epoxy Mica Mid-coat

Product Introduction:

This product is a high-performance two-component epoxy intermediate coat, its main components being high-molecular epoxy resin, hardener, and mica iron oxide (MIO) pigment. The unique lamellar structure of mica iron oxide forms a labyrinthine physical barrier within the paint film, effectively blocking the penetration of moisture, oxygen, and corrosive media, thus significantly improving rust resistance. It is specifically designed to provide excellent intermediate layer protection and is an indispensable key component in heavy-duty anti-corrosion coating systems.

characteristic:

1. Excellent corrosion resistance: The flaky structure of mica iron oxide can form a dense paint film, effectively isolating corrosive substances and significantly extending the service life of metal substrates.

2. Excellent adhesion: It has excellent adhesion to sandblasted steel substrates, ensuring a strong interlayer bond with the base coat (such as epoxy zinc-rich primer) and top coat.

3. Excellent mechanical properties: The paint film is tough and has good wear resistance, impact resistance and bending resistance, and can withstand harsh physical environments.

4. Excellent weather resistance: Although it is mainly used as an intermediate coat, its formula has a certain degree of weather resistance and can provide reliable protection before the topcoat is applied.

5. Easy to apply: The two-component design makes it easy to apply after mixing, and can be applied by spraying, brushing or rolling.

use:

This product is primarily used in heavy-duty corrosion protection applications requiring long-term protection, serving as an intermediate layer in anti-corrosion coating systems. Typical applications include:

1. Bridges and steel structures: Provide long-term corrosion protection for large bridges, steel structure factories, iron towers, etc.

2. Petrochemical and power facilities: Suitable for storage tanks, pipelines and equipment in oil refineries, chemical plants and power plants.

3. Ships and marine engineering facilities: can be used in ship superstructures, docks, offshore drilling platforms, etc.

4. Machinery and Equipment: Providing protective coatings for various engineering machinery, lifting equipment, etc.

Product characteristics:

Viscosity: 130 ±5 KU (25℃)

Specific gravity (g/ml): 1.47 ± 0.05 (g/ml)

Volumetric solids (%): 70 ± 1%

Color: Iron red

Hardener ratio: A : B = 6 : 1 (by weight)

Thinner kit: DR100
Thinner dosage: (excluding tool cleaning)

Construction method	Airless spray	Air spray	Brush paint	Rolling
Amount added (%)	5-10%	5-10%	5-10%	5-10%

Application methods: airless spraying, air spraying, brushing, rolling.

Recommended number of coats: 1

Drying time:

Min (minutes), H (hours), D (days)	30°C
Touch time	2/3H
Hardening time	12H
Repaint interval (lowest)	18H
Recoat interval (max)	4M
Usable time	8H

Drying time will vary depending on the ambient temperature and humidity.

Theoretical coverage:

Typical: 5 m²/L/coat (dry film thickness: 140 μm (per coat))

It is recommended that the coating thickness be at least three times the maximum roughness (Rz) to achieve a good protective effect.

Suggested construction procedure:

Product Name	Recommended number of coats	Recommended dry film thickness
Epoxy Zinc-Rich Primer 960PR	1 time	75μm
Epoxy Mica Iron Oxide Coating K9302	1 time	100-150μm
Polyurethane acrylic topcoat MA366	1-2 times	50-100μm

Instructions for use:

Surface treatment requirements:

Use a solvent to remove visible grease, oil, lubricants, cutting fluid, and other soluble contaminants from the metal surface that may affect adhesion, or use other methods to prepare the surface condition for the coating application, following the SSPC-SP1 surface treatment standard to prepare for subsequent protective coating applications.

The steel structure surface must be sandblasted to Sa2.5 (very thorough sandblasting) or SSPC-SP10 grade. Without using a magnifying glass, at least 95% of the surface area should be free of any visible oil, grease, dust, dirt, scale, rust, coatings, oxides, corrosion products, and other foreign matter. The surface roughness should be in the range of Rz 30-75μm.

Power tool treatment must meet St 3. This standard defines the use of power tools (such as power wire brushes, grinders, abrasive discs, etc.) to remove loose rust, scale, old coatings, and other foreign matter from steel surfaces until the surface has a metallic sheen. However, minor scratches and discoloration are permissible. It is equivalent to SSPC-SP3 in the US SSPC standard.

Surface defect treatment: This includes weld slag, burrs, cracks, and holes. These defects affect the adhesion and protective effect of the coating and should be removed or repaired as much as possible.

After surface treatment, a thorough inspection should be conducted to ensure that there are no contaminants or defects such as oil, grease, dust, dirt, scale, rust, welding slag, or burrs before proceeding with the next step.

Under any atmospheric conditions, it is best to perform the coating work within 1 hour after the completion of the "surface treatment" procedure, and no later than 8 hours after the "surface treatment".

Different coatings have different requirements for surface cleanliness and roughness. Please discuss this in detail with our sales staff before using this product.

Construction environment requirements:

Coating application should be carried out under suitable environmental conditions to ensure the quality of the coating. The following factors should be considered:

Temperature: Please construct within the recommended temperature range. Generally, it is not advisable to construct in environments below 5℃ or above 40℃.

Humidity: Relative humidity should not exceed 85%. Avoid construction in humid or rainy weather.

Wind speed: Excessive wind speed will affect the spraying effect; avoid construction on windy days.

Surface temperature: The surface temperature of the steel should be at least 3°C ​​higher than the dew point temperature to avoid condensation on the surface.

Storage:

Storage validity period: 2 years

This product must be stored in a cool, dry, and well-ventilated place, away from direct sunlight and fire.

Notes:

Please read the paint instructions carefully before application.

The paint should be thoroughly stirred after opening the can.

Strictly follow the dilution ratio specified in the instructions; do not dilute excessively.

Please mix the main agent and hardener thoroughly according to the proportions indicated in the instruction manual.

This product is flammable and should be kept away from heat sources and open flames.

The work area should be well-ventilated during construction, and workers should avoid contact with skin and eyes. Please refer to SDS for relevant information.

Unused main agent and hardener should be sealed separately and stored in a cool place.

Packaging specifications:

Supporting specifications:	16.0	L
Supporting specifications:	3.2	L

Safety Precautions:

1. Ensure good ventilation during application, and keep the paint away from direct sunlight and heat sources.
2. To avoid skin and eye contact or inhalation of excessive paint fumes, please use protective equipment such as a face mask and gloves.
3. If it gets into your eyes, rinse immediately with plenty of water and seek medical attention.
4. Keep out of reach of children.

Disclaimer:

The above information represents typical properties, characteristics, and applications of the product and is intended only as guidance from our company. It should not be considered a warranty, a statement requiring the company to assume legal liability, or a basis for presuming the company to be liable. Users are responsible for confirming the suitability of any batch of product for a specific application before using the information and content presented in this manual.