Product Details
FEISPARTIC F521 Polyaspartic Resin Substitute Of NH1521 110-210
Viscosity
PROFILE
- FEISPARTIC F521 is a solvent-free aminofunctional co-reactant for
polyisocyanates.
PROPERTY
- The coating film has excellent fullness, leveling performance and
high gloss.
- The coating film has excellent weather resistance, water
resistance, solvent resistance, acid and alkali resistance, salt
spray resistance and other properties. High hardness up to 2H and
excellent abrasive resistance.
- Excellent adhesion with ABS, PC, PVC and other plastics and a
variety of metals.
- Has excellent compatibility with most of hydroxy acrylic resin and
cab.
APPLICATIONS
- Can be used in the automobile paint field, it can improve the
fullness, gloss, and hardness.
- Can be used for industrial paint and wood paint, especially
recommended for high hardness and high wear resistance occasions.
- It makes anti-corrosion coatings for steel structure, oil
pipelines, and other light or heavy anti-corrosion fields.
- Can be used for wind blade coating field, such as gel coat, putty
and topcoat.
INDEX
INDEX | VALUE |
Appearance | Colorless to light yellow green transparent liquid |
Hazen (Pt-Co) | ≤250 |
Solid Content(%) | —— |
Amine value(mg KOH/g) | 110~210 |
Amine Equivalent(g/mol) | 290 |
Hydroxyl value Equivalent(%) | 5.84 |
Viscosity(mpa.s/25℃) | 165~180 |
Relative density (25℃) | 1.06±0.02 |
PACKING
200 Kgs/Drum, 10 Kgs/Drum
SHELF LIFE
FEISPARTIC F521 must be stored in airtight containers to prevent
contact with moisture. Recommended storage temperature is below
40°C (≤104°F). The shelf life of FEISPARTIC F521 in the closed
original container is 12 months.
NOTICE
- FEISPARTIC F521 is combustible and should be stored at the
temperature below 40 ℃. It should be kept away from fire source and
stored in a cool, dry and ventilated environment. The storage
period is 12 months.
- The coating formulated with FEISPARTIC F521 should be tested for
performance after one week’s maintenance.
Note: This manual is for reference only, without any warranty. In
view of the limitation of resin function and the diversity of user
requirements, please strictly test the adaptability of the product
and the stability of the final product. The technical information
is subject to change without prior notice.
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or Send Us an Email: marketing@feiyang.com.cn, feiyangjunyan@gmail.com
Hot Selling Polyaspartic Resins
Hot Selling | Equivalent of Covestro's Polyaspartic Resin |
F520 | Desmophen® NH 1520 |
F521 | Desmophen® NH 1521 |
F420 | Desmophen® NH 1420 |
F423 | Desmophen® NH 1423 |
F220 | Desmophen® NH 1220 |
F2850 | Desmophen® NH 2850 XP |
F2850H-2 | Desmophen® NH 1723 |
Get a Quote
or Send Us an Email: marketing@feiyang.com.cn, feiyangjunyan@gmail.com
Polyaspartic Polyurea Resin FEISPARTIC Series
Model | Density (25℃) | Viscosity (mpa.s/25℃) | Solid Content (%) | Equivalent Weight | Hydroxyl Value Equivalent | Gel Time/min (25℃, RH55%) | Application Areas |
F520 (Equivalent of Desmophen® NH 1520) | 1.06 | 800-2000 | 96±2 | 290 | 5.86 | 130 | Anti-corrosion, flooring, windmiII blade coating |
F520L | 1.06 | 700-2000 | 96±2 | 290 | 5.86 | 130 | Anti-corrosion, flooring, windmill blade coating |
F521 (Equivalent of Desmophen® NH 1521) | 1.04 | 110-210 | 88±2 | 326 | 5.21 | - | Anti-corrosion, flooring, windmill blade coating |
F524 | 1.02 | 1600-2800 | 97±2 | 330 | 5.15 | 26 | Waterproof, anti-corrosion, windmill blade, floor coating |
F420 (Equivalent of Desmophen® NH 1420) | 1.06 | 800-2000 | 97±2 | 277 | 6.14 | 18 | Waterproof, anti-corrosion, floor coating and adhesive |
F421 | 1.06 | 800-2500 | ≥99 | 277 | 6.14 | 26 | Waterproof, anti-corrosion, windmiII blade, floor coating |
F423 (Equivalent of Desmophen® NH 1423) | 1.06 | 800-2500 | ≥99 | 271 | 6.27 | 26 | Waterproof, anti-corrosion, windmill blade, floor coating |
F220 (Equivalent of Desmophen® NH 1220) | 1.05 | 60-100 | 97±2 | 230 | 7.39 | 2 | Anti-corrosion, fast cure coating (can be packed in 15mins under 25"C) |
F2850 (Equivalent of Desmophen® NH 2850 XP) | 1.07 | 70-140 | 97±2 | 290 | 5.86 | 60 | Anti-corrosion, flooring, windmill blade coating and adhesive |
F2850H-2 (Equivalent of Desmophen® NH 1723) | 1.07 | 80-140 | ≥99 | 290 | 5.86 | 60 | Ant1-corrosion, flooring, windmiII blade coating and adhesive |
F2872 | 1.06 | 300-500 | 97±2 | 290 | 5.86 | 26 | Anti-corrosion, flooring, pouring sealant, car refinishing |
F157 | 1.09 | 3000-6000 | 98±2 | 350 | 4.86 | 27 | Anti-corrosion, flooring coatings with high requirements for chemical medium resistance |
F286 | 1.06 | 200-800 | 90±2 | 330 | 5.15 | 26 | Anti-corrosion, floor coating |
F221 | 1.07 | 400-600 | 97±2 | 379 | 4.47 | 28 | Anti-corrosion, floor coating |
F321 | 1.04 | 200-600 | - | 379 | 4.47 | 55 | Anti-corrosion, flooring, waterproof coating |
F330 | 1.06 | 250-600 | 97±2 | 334 | 5.09 | 21 | Waterproof, floor coating, athletic facility, sealant |
Supply 200+ Companies Globally
Feiyang R&D Team
Key Advantages of Partnering with Us
- 30 Years of manufacturing expertise, ensuring quality and
reliability.
- Factory-direct pricing for better margins and market
competitiveness.
- 20,000 tons annual production capacity for consistent supply.
- In-house R&D lab and technical support for prompt assistance.
Contact Now
or Send Us an Email: marketing@feiyang.com.cn, feiyangjunyan@gmail.com
Company Profile
Shenzhen Feiyang Protech Corp., Ltd. specializes in researching and
producing polyaspartic polyurea resin and other new chemical
products. We are recognized as a "National Special New Key Little
Giant" and a "State-level High-tech Enterprise", with more than 50
polyaspartic polyurea invention patents. We also participated in
the preparation of 13 industry standards for polyaspartic polyurea
materials as a leading company in this field, ranking No.1 in the
Chinese market.
In the coating industry, polyaspartic polyurea is used in
construction machinery, automobile, containers, fan blades, marine
heavy corrosion protection, and high-end industrial and commercial
floor coatings. In the adhesive field, it is mainly used in
sealants, stone adhesives, electronic adhesives, film circuit
packaging adhesives, and other high-end applications. In the
waterproofing materials sector, it is primarily used in
hydroelectric dams, water parks, building waterproofing repair
materials, and other areas. In the structural materials field, it
is applied to curling tracks, artificial ice skating rinks, and
other structural materials.
Polyaspartic polyurea is considered a high-end new material in the
strategy of manufacturing power. We have broken the foreign
technology monopoly and filled the domestic market gap. Due to its
comprehensive characteristics of "Environmental protection, Energy
saving, and Long durability", polyaspartic polyurea can contribute
to the realization of genuine carbon neutrality in the coatings,
adhesives, and materials industries.

Since 2012, Feiyang polyaspartic ester resin has been supplied
overseas. It has been widely used to replace Bayer's current
polyaspartic system in many coating companies and has been applied
in anti-corrosion and waterproofing by international coating
companies.
