MT Plus-AL117N is designed as a corrosion-control primer within multi-layer protective coating systems. When applied on properly prepared substrates, it provides a dense, high cross-linked barrier layer that significantly enhances system durability.
Recommended coating system example:
Substrate
Abrasive blast-cleaned carbon steel, or properly pre-treated galvanized steel
Primer
Pure Epoxy Primer Powder MT Plus-AL117N
Dry film thickness: 60–80 μm
Intermediate / Topcoat options
Polyester powder coating for general outdoor industrial exposure
Super-durable polyester powder coating for architectural and infrastructure use
Polyurethane liquid topcoat where enhanced chemical resistance or specific aesthetic requirements apply
When correctly applied and combined with suitable topcoats, this coating system can achieve corrosion protection levels up to ISO 12944 corrosion categories C3–C4, depending on surface preparation quality, total film build, and service environment.
MT Plus-AL117N offers excellent intercoat adhesion and broad compatibility with commonly used topcoat technologies.
Compatible topcoats include:
Epoxy powder coatings
Polyester and super-durable polyester powder coatings
Approved polyurethane liquid topcoats
Recommended over-coating interval:
Up to 3 weeks when stored under clean, dry, indoor conditions
During this period, the primer surface should remain free from dust, grease, moisture, and other contaminants
If the over-coating interval is exceeded, light surface activation (such as gentle sweep blasting or mechanical abrasion) may be required to restore optimal intercoat adhesion.
For consistent performance in industrial production, the following application considerations are recommended:
Film thickness control
Maintain the specified 60–80 μm range to ensure optimal barrier performance and avoid potential defects related to excessive film build
Electrostatic spraying efficiency
Proper grounding of the workpiece improves powder transfer efficiency, edge coverage, and coating uniformity
Zinc-sprayed substrates
Excessive surface roughness should be avoided, as overly coarse profiles can lead to unnecessary powder consumption without improving protection
Curing control
Uniform curing is essential to achieve full cross-linking, ensuring mechanical integrity and long-term corrosion resistance
To ensure correct system design, the following limitations should be considered:
This epoxy primer is not UV-resistant and is not intended for direct outdoor exposure without a suitable topcoat
It is not recommended as a single-coat protective system
Long-term performance depends heavily on correct surface preparation, controlled application, and appropriate topcoat selection
MT Plus-AL117N is widely used in corrosion-critical applications where system reliability is prioritized over decorative appearance:
Industrial machinery and equipment frames
Steel structures for warehouses, logistics centers, and manufacturing plants
Infrastructure components requiring duplex coating systems
Aluminium and galvanized steel parts used in architectural assemblies and industrial constructions
Specifically engineered for corrosion-critical primer applications, not decorative finishes
Optimized balance between adhesion, edge coverage, and barrier protection
Excellent over-coating tolerance, supporting flexible production scheduling
Well-suited for multi-layer industrial and architectural coating systems
This product is designed as a high-performance barrier primer. You use it to provide corrosion protection, improve adhesion, and enhance edge protection before applying a decorative or weather-resistant topcoat.
No. This epoxy primer is not UV resistant and is not intended for direct long-term outdoor exposure. You should always apply a compatible powder or PU liquid topcoat to achieve full system durability.
You can over-coat the primer within a maximum of three weeks, provided the coated parts are stored indoors in a clean, dry environment. If this interval is exceeded, surface inspection and light activation may be required.
Yes. It is suitable for hot-dip galvanized steel, electro-galvanized steel, and zinc-sprayed surfaces, provided that correct mechanical and chemical pretreatment is carried out according to ISO standards.
A dry film thickness of 60–80 µm is recommended. Staying within this range helps ensure proper curing, good edge coverage, and optimal barrier performance.
Yes. Unused powder can be reclaimed and reused using suitable recovery equipment. For consistent performance, you should maintain at least 70% virgin powder in the mix.
Powder coatings can be categorized by resin system (epoxy, polyester, hybrid, polyurethane), appearance (smooth, texture, hammer, metallic, pearlescent), or performance level (anti-corrosion, heat-resistant, UV-resistant, architectural grade, automotive grade).
Powder coatings offer thousands of colors in gloss, matte, satin, metallic, candy, texture, wrinkle, hammer tone, wood grain, fluorescent, and other custom effects. Special powders can create soft-touch, anti-scratch, anti-fingerprint, or anti-graffiti surfaces.
The process generally includes surface pretreatment (degreasing, phosphating, chromating, sandblasting), drying, electrostatic spraying, curing in an oven, and cooling. A well-controlled pretreatment and curing process ensures strong adhesion and long service life.
Powder coatings are environmentally friendly, solvent-free, and produce minimal waste. They offer excellent corrosion resistance, weather durability, mechanical strength, and uniform film appearance. The coating is tough, impact-resistant, scratch-resistant, and has a long lifespan.
Powder coatings are widely used in appliances, aluminum profiles, architectural components, automotive parts, bicycles, furniture, outdoor equipment, machinery, electrical cabinets, pipeline systems, and general industrial and consumer goods.
Powder coating is a dry finishing technology where finely ground powder is electrostatically sprayed onto a metal or non-metal surface and then cured at high temperature. After curing, the powder melts into a continuous, durable, and decorative coating layer.
Powder coating protects the substrate from corrosion, weathering, chemical attack, and mechanical wear. It also provides decorative appearance with rich colors, gloss levels, textures, and special effects.
In many industrial applications, powder coating outperforms liquid paint. It forms a thicker and tougher coating, resists corrosion and chemicals better, and does not contain VOCs. It also provides excellent consistency and cost-effective mass production.
It is called powder coating because the coating material is a solid powder instead of a liquid paint. The coating is formed by melting and curing powder particles under heat.
Powder coatings include several families depending on resin chemistry:
• Epoxy powders
• Polyester powders
• Epoxy-polyester hybrid powders
• Polyurethane powders
• Acrylic powders
• Fluorocarbon (PVDF) powders
Each type has its own performance features such as corrosion resistance, UV resistance, chemical resistance, outdoor durability, or decorative properties.
Powder coatings are based on thermoset or thermoplastic resins combined with pigments, curing agents, fillers, additives, and in some cases metallic or effect particles. Common substrates include steel, aluminum, galvanized metal, MDF, and certain heat-resistant plastics.
The lifespan depends on powder type, film thickness, application method, pretreatment, and service environment. Indoor coatings can last more than 10–20 years. High-grade outdoor polyester or fluorocarbon powders can last 15–25 years or longer under UV exposure.
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