China Suppliers Factory Epoxy Vinyl Acrylate Coating - Fast-Drying Adhesion for Primers and Topcoats
Product Features
- ✓ In the amphiphilic resin system, the tie-coat typically employs modified epoxy resin or copolymers containing compatible groups, enabling one side to bond well with the epoxy primer and the other side to be compatible with the vinyl topcoat.
- ✓ With good wettability and permeability, it can effectively wet the surface of epoxy coatings, forming strong physical/chemical bonds.
- ✓ It has strong adaptability in construction, can be sprayed and brushed, and has a moderate drying time, making it suitable for shipyard environments.
- ✓ Resistant to salt spray and seawater, meeting the requirements for ships to be exposed to marine corrosive environments for extended periods.
Recommended Use
🚢
Used for the combined application of anti-corrosion primer and anti-fouling paint in new shipbuilding and old ship maintenance.
Product Parameters
| Project | Data | |||
| Density (Kg/L) | 1.4 | |||
| Color | Grey | |||
| Solid percentage by volume % | 57 ± 2 | |||
| Reference dry film thickness (μm) | 100 | |||
| Theoretical coating rate (㎡/L) | 5.7 | |||
| Flash point | 38°C [100°F] | |||
| Volatile matter (g/L) | 396 | |||
| Gloss | No light | |||
| Drying time | 10℃ | 20℃ | 30℃ | |
| Dry to touch | 3 hrs | 1.5 hrs | 1 hr | |
| Actual drying | 24 hrs | 10 hrs | 8 hrs | |
| Coating interval | 10℃ | 20℃ | 30℃ | |
| min | 24 hrs | 10 hrs | 8 hrs | |
| Potlife | 10℃ | 20℃ | 30℃ | |
| 10 hrs | 8 hrs | 6 hrs | ||
| Mixing ratio | Main agent : curing agent (4:1 volume ratio) | |||
| Storage period | 24 months @ 25°C | |||
Application
🔧 Construction Method
Airless spraying
Nozzle pressure: 14 MPa – 21 MPa
Nozzle hole diameter: 0.6 mm – 0.8 mm
🛡️ Surface Treatment & Construction Conditions
To avoid condensation, please apply on a clean and dry surface with a temperature at least 3°C [5°F] above the dew point.
The surface of the primer should be dry and free of any contaminants (oil, grease, salt, water, dust, etc.), and should be recoated within the specified recoating interval.
The relative humidity during construction and curing process must be less than 85%.
Disclaimer
⚠️
The information provided in this manual is the most comprehensive and correct information we have at present. Since the conditions of product use are beyond our control, the information here does not contain any guarantee, that is, we are only responsible to the buyer for the product selection. Due to the continuous development of our company's products and production processes, all information here is subject to our confirmation.
Frequently Asked Questions (FAQ)
Q
What is the purpose of a tie-coat in marine paint systems?
A
A tie-coat acts as an intermediate bonding layer between the epoxy anti-corrosion primer and the vinyl or anti-fouling topcoat. It ensures strong adhesion between two otherwise incompatible coating systems, preventing delamination in demanding marine environments.
Q
What mixing ratio should be used when preparing this tie-coat product?
A
The product should be mixed at a volume ratio of 4:1 (main agent to curing agent). It is important to mix the components thoroughly and use the mixture within the specified pot life at the given temperature.
Q
What are the recommended construction conditions for applying this coating?
A
The coating should be applied on a clean, dry surface at a temperature at least 3°C [5°F] above the dew point to avoid condensation. Relative humidity during application and curing must remain below 85%. The primer surface must be free from contaminants such as oil, grease, salt, water, and dust.
Q
How long is the pot life of this product at different temperatures?
A
The pot life varies with temperature: approximately 10 hours at 10°C, 8 hours at 20°C, and 6 hours at 30°C. Once mixed, the product should be used within these time frames to ensure optimal performance.
Q
Is this tie-coat suitable for both new shipbuilding and ship maintenance projects?
A
Yes. This tie-coat is designed for use in both new shipbuilding projects and old ship maintenance. It bridges the anti-corrosion primer and anti-fouling paint systems, making it versatile for various stages of a vessel's lifecycle.
Q
How should this product be stored, and what is its shelf life?
A
The product should be stored at a temperature of 25°C in a cool, dry environment away from direct sunlight and heat sources. Under proper storage conditions, the shelf life is 24 months from the date of manufacture.