Protective coatings are not just materials for decoration or color. They are a barrier that must withstand loads, chemicals, moisture, temperature fluctuations, and wear. Therefore, the quality of production directly determines how long the system will serve at the site.
DEFENS is a Ukrainian manufacturer of epoxy and polyurethane coatings for industry, creating materials with high strength and durability. Each product undergoes a complete control cycle – from raw material selection to testing of finished systems.
In this article, we will consider how protective coatings DEFENS are manufactured and what stages ensure their reliability.
1. Raw materials as the foundation of quality
The production of DEFENS begins with the selection of components.
The following are used for formulations:
- high-quality epoxy resins
- polyurethane precursors
- European hardeners
- stabilized pigments
- additives to enhance hardness, adhesion, and stability
- quartz and mineral fillers.
Each batch of raw materials undergoes incoming control:
- viscosity check
- moisture (especially important for polyurethanes)
- chemical analysis
- visual inspection.
Only after this are the components allowed for production.
2. Accurate dosing and preparation of components
For each type of coating, a specific formulation has been developed, where the ratio of components to gram is important.
Accuracy of dosing guarantees:
- correct polymerization
- absence of defects
- stability of characteristics in each batch
- no deviation from the technical passport standards.
Preparation includes:
- pre-heating or cooling of components (depending on the season)
- weighing
- cleaning of tanks
- filtration of base materials.
3. Mixing: creating future strength
This is a key stage in the production of coatings DEFENS.
In industrial mixers, the following occurs:
- combining resins with modifiers
- introduction of pigments
- addition of fillers
- stabilization of the mixture.
Parameters controlled during mixing:
- rotation speed
- temperature
- density
- homogeneity
- mixing time.
It is at this stage that the structure of the material is formed, which affects its hardness, elasticity, and chemical resistance.
4. Degassing and Filtration
To ensure that the coating is even, free of micro-bubbles and foreign impurities, the material undergoes:
- degassing – removal of air trapped during mixing
- filtration – cleaning from micro-particles.
This ensures:
- smooth surface after application
- absence of polymerization defects
- maximum strength structure of the coating.
5. Laboratory Quality Control
Before packaging, each batch undergoes testing in the DEFENS laboratory.
Key parameters are checked:
- viscosity
- density
- pot life of the mixture
- drying time
- Shore hardness
- adhesion to concrete (pull-off method)
- chemical resistance
- abrasion resistance
Climate tests are also conducted:
- high humidity impact
- temperature fluctuations
- heating
- water and salt impact.
Only after the complete set of results is obtained, the batch is allowed for bottling.
6. Packaging and sealing
The material is poured into:
- metal buckets
- plastic euro-containers
- complete sets “component A + component B”.
During packaging, the following is controlled:
- gross and net weight
- tightness of the container
- absence of contact between the material and air
- accuracy of system assembly.
Each bucket is labeled:
- batch number,
- date of manufacture,
- recommendations for operation.
This ensures complete traceability of the product.
7. Stability Control Over Time
After production, samples of the product are selected and stored for long-term control.
In the laboratory, they are tested after:
- 1 month,
- 3 months,
- 6 months,
- 12 months.
Thus, DEFENS guarantees that the material does not change its properties during storage.
8. DEFENS — Protection System Created by Technology
The production of DEFENS is not just mixing components.
It is a clearly structured technological cycle, where control occurs at every step: from incoming raw materials to finished products.
Thanks to this, the coatings of DEFENS:
- withstand intense mechanical loads
- are resistant to chemicals, oils, and salts
- do not wear out even with 24/7 operation
- polymerize stably at different temperatures
- last for years without losing characteristics.
Conclusion
The quality of DEFENS coatings is the result of a modern production process, control at every stage, and the use of certified raw materials.
Each system is created to provide maximum protection of materials and a long service life – regardless of conditions, loads, and areas of application.