Polyaspartic Anti-corrosive topcoat
HA8028 is a two-component polyaspartic anticorrosion coating offering excellent UV and weather resistance, high gloss, and good chemical resistance. It is ideal for protecting steel structures, tanks, pipelines, containers, and industrial equipment.
Product Overview
HA8028 is a two-component polyaspartic anticorrosion coating formulated with polyaspartic ester and aliphatic polyisocyanate. Designed for steel structures and industrial metal surfaces, it combines corrosion protection, weather resistance and a high-gloss finish for demanding protective coating applications.
Its aliphatic chemistry provides excellent resistance to UV exposure, yellowing and chalking, helping maintain coating appearance during long-term outdoor use. The cured film is tough and dense, with good adhesion, hardness, scratch resistance and stain resistance.
HA8028 also offers resistance to specified acids, alkalis and salt-water exposure. It can be applied by brush, roller, air spray or airless spray, and the TDS identifies it as suitable for direct-to-metal (DTM) application on properly prepared metal surfaces.
For steel fabricators, industrial maintenance contractors, protective coating distributors and project procurement teams, HA8028 provides a practical option where corrosion protection, weatherability and surface appearance are all important.
Key Features of HA8028 Polyaspartic Coating
Excellent Corrosion Resistance
Designed to protect suitable metal substrates against corrosive environments, HA8028 demonstrates resistance to specified acid, alkali, salt-water and neutral salt spray tests. It is suitable for evaluation in industrial steel protection and equipment coating projects.
UV and Weather Resistance
The aliphatic polyaspartic formulation provides UV resistance, color retention and gloss retention. Its resistance to yellowing and chalking makes it suitable for outdoor steel structures and metal equipment exposed to weathering.
High Gloss and Durable Surface Finish
HA8028 forms a dense, tough coating film with good leveling, high gloss and bright color options. Its H pencil hardness, scratch resistance and stain resistance help maintain the finished surface during service.
Strong Adhesion
The coating offers good adhesion and compatibility with epoxy, polyurethane and other coating films, subject to substrate condition and coating-system compatibility.
Chemical Resistance
HA8028 has documented test results for specified acid, alkali and salt-water conditions. Its resistance to industrial exposure should be assessed against the actual chemicals, concentrations, temperatures and contact conditions involved.
Flexible Application
The coating supports brush, roller, air spray and airless spray application. Its direct-to-metal capability may simplify suitable coating systems when the substrate preparation and project requirements permit.
Applications
HA8028 polyaspartic anticorrosion coating is designed for corrosion protection and surface finishing across a range of industrial applications.
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Steel structures: Protective finishing for fabricated steelwork, structural frames and metal components.
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Storage tanks and tank trucks: Surface protection for suitable tank surfaces and related metal equipment.
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Shipping and industrial containers: Protective finishing for metal surfaces exposed to outdoor conditions.
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Pipelines and valves: Corrosion protection for suitable pipeline components, valves and associated steel structures.
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Industrial equipment: Protective coating for equipment frames, axles, racks and other metal parts.
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Wastewater treatment facilities: Coating applications for suitable structures and equipment, subject to chemical compatibility.
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Swimming pools and chemical containment structures: Potential applications where the coating system is confirmed suitable for the intended exposure conditions.
For projects involving continuous immersion, aggressive chemicals or specialized service requirements, confirm product suitability with the HUISINS technical team before specification.
Technical Data
Basic Product Properties
| Item | Component A | Component B |
|---|---|---|
| Appearance | Light yellow liquid | Color adjustable |
| Specific gravity | 1.04 | 1.50 |
| Viscosity at 25°C | 40–60 cps | 100–200 cps |
| Solid content | 75% | 90% |
Mixing ratio by weight: Component A : Component B = 1 : 2
Pot life at 25°C: Approximately 1 hour
Recommended dry film thickness: 150–300 μm
Theoretical coverage: 0.15 kg/m² at 100 μm film thickness, according to the TDS.
Surface dry time: 1 hour under the stated TDS conditions
Hard dry time: 2 hours under the stated TDS conditions
Actual material consumption and drying time depend on substrate condition, film thickness and environmental conditions.
Typical Physical and Chemical Performance
| Test Item | Result |
|---|---|
| Pencil hardness | H |
| Pull-off adhesion strength | 14 MPa (range 11.8–16.8 MPa); 100% B failure |
| Bending test | 2 mm |
| Abrasion resistance, CS-10, 1,000 g/1,000 revolutions | 0.039 g loss |
| Impact resistance | 50 kg·cm |
| Accelerated weathering, 2,000 hours | No blistering, rusting, cracking or flaking; chalking grade 0, discoloration grade 2, gloss loss grade 2 |
| Neutral salt spray, 3,000 hours | No blistering, rusting, cracking or flaking |
| Humidity resistance, 1,000 hours | No blistering, rusting, cracking or flaking |
| Acid resistance, 240 hours | No blistering, rusting, cracking or flaking under specified test conditions |
| Alkali resistance, 240 hours | No blistering, rusting, cracking or flaking under specified test conditions |
| Salt-water resistance, 240 hours | No blistering, rusting, cracking or flaking under specified test conditions |
Specified chemical test conditions:
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Acid: 35% H₂SO₄ or 15% HCl
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Alkali: 35% NaOH
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Salt water: 60 g/L NaCl
The results above are based on the test methods and conditions stated in the TDS. They do not independently establish a guaranteed service life in every operating environment.
Application Guide
1. Surface Preparation
Steel surfaces: Blast cleaning is recommended to Sa 2.5 according to ISO 8501-1 or GB 8923.
Concrete surfaces: The substrate should be sound, dense, flat, clean and dry. Repair cracks, pitting, honeycombing, delamination and other defects before coating. Suitable putty or filler may be required.
Wood surfaces: Ensure the surface is clean, dry and free from burrs, chips and loose fragments.
2. Mixing Instructions
HA8028 is a two-component coating. Mix Component A and Component B at a weight ratio of 1:2.
Agitate Component B until uniform before application. Combine both components in the correct ratio and mix thoroughly. Use the mixed material within approximately one hour at 25°C.
Do not alter the specified mixing ratio. Reseal containers promptly after use to minimize moisture absorption.
3. Application Methods
HA8028 can be applied using:
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Hand brush or roller
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Air spray at 0.3–0.5 MPa air pressure
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Airless spray at 15–20 MPa spray pressure
The recommended dry film thickness is 150–300 μm. Select the application method and film build according to the substrate, project specification and required protection.
4. Recommended Application Conditions
| Parameter | Requirement |
|---|---|
| Ambient temperature | -5°C to +35°C |
| Relative humidity | ≤85% |
| Dew point | ≥3°C, as stated in the TDS |
| Minimum recoating interval | 1 hour |
| Maximum recoating interval | 24 hours |
Keep the application area clean and dry. Prevent contact with water, alcohols, acids, alkalis and other incompatible substances during application.
Confirm the dew-point requirement with the technical team before use, as the original TDS does not clarify the reference for this value.
5. Drying and Curing Time
| Substrate Temperature | Surface Dry | Foot Traffic | Solid Dry |
|---|---|---|---|
| +10°C | 2 hours | 12 hours | 7 days |
| +20°C | 1.5 hours | 6 hours | 7 days |
| +30°C | 1 hour | 4 hours | 7 days |
These times are subject to environmental conditions, especially temperature and relative humidity. Confirm adequate curing before exposing the coating to service loads or aggressive chemicals.
Packaging and Storage
Packaging:
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Component A: 4 kg or 8 kg per container
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Component B: 8 kg or 16 kg per container
Shelf life: 10 months for each component from the manufacturing date in sealed condition.
Storage recommendations:
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Store at 5–35°C.
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Keep containers tightly sealed.
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Store in a cool, well-ventilated area.
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Avoid direct sunlight and moisture exposure.
Refer to the latest Safety Data Sheet (SDS) for handling, storage, transportation and disposal precautions.
Frequently Asked Questions
1. What is polyaspartic anticorrosion coating used for?
Polyaspartic anticorrosion coatings are used to protect suitable metal surfaces and industrial structures. HA8028 is intended for applications including steel structures, tanks, containers, pipelines, valves and industrial equipment where corrosion resistance and outdoor appearance are important.
2. Can HA8028 be used directly on steel?
Yes. The TDS specifies direct-to-metal application. Appropriate surface preparation is still essential, and blast cleaning to Sa 2.5 is recommended for steel surfaces.
3. Is HA8028 suitable for outdoor steel structures?
HA8028 provides UV resistance, weatherability and gloss and color retention. It can be considered for outdoor steel protection projects, subject to the actual exposure conditions and specified coating thickness.
4. What is the mixing ratio and pot life?
The mixing ratio is 1 part Component A to 2 parts Component B by weight. The pot life is approximately one hour at 25°C. Prepare only the quantity that can be used within the specified working time.
5. What dry film thickness is recommended?
The recommended dry film thickness is 150–300 μm. The final specification should reflect the corrosion environment, substrate condition and project requirements.
6. Can HA8028 withstand acids, alkalis and salt water?
The TDS reports resistance under specified acid, alkali and salt-water tests, along with neutral salt spray and humidity resistance results. For continuous immersion or aggressive chemical service, confirm compatibility with the actual medium and operating conditions before use.
HUISINS Protective Coating Solutions
HUISINS supplies protective coating solutions for industrial corrosion protection, steel structures and other demanding applications. We work with overseas buyers to evaluate product requirements, application conditions and relevant technical documentation.
If you are sourcing a polyaspartic anticorrosion coating for steel structures, industrial equipment or outdoor metal surfaces, contact HUISINS to discuss HA8028, request its technical data sheet and obtain a project quotation.
