PROFILE
FEISPARTIC F520L is a solvent-free aminofunctional co-reactant for
polyisocyanates.
PROPERTY
- High solid content with low viscosity. For the formulation of
high-solid or solvent-free two-component polyaspartic polyurethane
coatings or polyurethane topcoats.
- 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 for automobile paint field, it can obviously improve
the fullness, gloss and hardness.
- Can be used for industrial paint and wood paint, especially
recommend for high hardness and high wear resistance occasions.
- It is used to make anti-corrosion coatings for steel structure, oil
pipeline and other light or heavy anti-corrosion fields.
- Used for making styrene foam landscape paint.
- Can be used for wind blade coating field, such as gel coat, putty
and topcoat.
- The resin has high solid content, low viscosity, good wettability
and compatibility. It is widely used for grinding high consistency
color paste, especially in the field of automotive repair paint.
INDEX
| INDEX | VALUE |
| Appearance | Colorless to light yellow green transparent liquid |
| Hazen (Pt-Co) | ≤100 |
| Solid Content(%) | 96±2 |
| Amine value(mg KOH/g) | 185~200 |
| Amine Equivalent(g/mol) | 290 |
| Hydroxyl value Equivalent(%) | 5.84~5.86 |
| Viscosity(mpa.s/25℃) | 700~2000 |
| Relative density (25℃) | 1.06±0.02 |
PACKING
200 Kgs/Drum, 10 Kgs/Drum
SHELF LIFE
FEISPARTIC F520L 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 F520L in the closed
original container is 12 months.
NOTICE
- FEISPARTIC F520L 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 F520L should be tested for
performance after one week’s maintenance.
Feiyang Products List
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Contact our Tech Team
Feiyang R&D Center
Our state-of-the-art facility, completed on April 16, 2024, is
dedicated to the R&D, application, and advancement of
cutting-edge polyaspartic polyurea materials. Backed by a team of
more than 50 experts and industry leaders, it serves as a hub for
innovation and technical excellence.
Our vision is to become a global leader in polyaspartic polyurea
material R&D by mastering the core technologies of the entire
industry chain. Through digitalization, smart systems, and
intelligent manufacturing, we strive to deliver high-quality
advanced material solutions to customers worldwide.
Feiyang’s 26,000-Ton Polyaspartic Resin Expansion Project Completed
In July 2023, Feiyang launched the design and construction of a new
26,000-ton polyaspartic materials project. Upon full operation, the
project will raise Feiyang’s total resin production capacity to
46,000 tons. It has significantly upgraded the original
polyaspartic resin production process by establishing a fully
automated production line that integrates raw material storage,
manufacturing, and packaging. As a result, labor requirements have
been reduced by 50%, while output per employee has doubled. In
addition, the upgraded production line now enables the direct
production of high-purity bio-based polyaspartic polyurea resin.
Supply 200+ Companies Globally


Feiyang R&D Team
Key Advantages of Partnering with Us
- Three plants, 60,000 square meters of production area, serving 200+
firms in 30+ countries.
- Factory-direct, economies of scale, 20,000-ton capacity, 30+ years
of industry experience.
- In-house R&D lab since 2004 with 40 engineers, offering custom
formulas and tech support.
- 84 Invention patents, 17 industry standards, ECOVADIS Silver
certified.
Contact
Now
or Send Us an Email: marketing@feiyang.com.cn, feiyangjunyan@gmail.com
80+ Polyaspartic Polyurea Patents
Polyaspartic Polyurea Industry Standards
Oil and gas overhead pipeline anti-corrosion and insulation
technology standard, coded as SYITT34 72016.
Standard for polyaspartic polyurea anti-corrosion coatings. In
2018, HG/T5368-2018 was promulgated.
Polyaspartic polyurea waterproof coatings. Group standards
HG/T5368-2018 was promulgated in 2021.
Polyaspartic polyurea sealant. Group standard to be issued in 2021.
Polyaspartic polyurea waterproof glue for building exterior wall.
Group standard was started in 2018.
Polyurea automotive paint standard, jointly formulated by FAW,
Feiyang, etc. In 2015, FAW enterprise standards were formulated,
similar to industry standards.
Polyaspartic Polyurea Patents
200910252150.0 The invention relates to aliphatic hydroxylamino
polyether and a preparation method.
201110305744.0 Solvent-free polyaspartate polyurea elastic
waterproof coating.
201110305000.9 A polymerized modified polyaspartic polyurea
compound and its preparation method.
201220431122.2 Polyaspartic surface decoration layer and
construction method.
201410114984.6 A kind of exterior wall coating, its preparation and
application.
201611244525.5 A synthetic method of isocyanate curing agent.
201710158809.0 The invention relates to aspartic ester
self-leveling coating and a preparation method.
201710257784.X The invention discloses a synthesis method and
application of uv curing acrylate resin.
201710634179.X Two-component polyaspartic polyurea hard adhesive
and its application method.
201710714596.5 The invention discloses a high strength polyaspartic
polyurea waterproof coating and a preparation method.
201710713825.2 Polyaspartic polyurea fast drying elastic coating
for wind blades and its preparation method.
201710774758.4 The invention relates to a polyaspartic acid ester
urea adhesive and its construction process.
201711342078. 1 A kind of non-solvent polyaspartic polyurea
waterproof repairing material.
201810327390 .1 Preparation of aspartic acid ester high strength
weather resistance anti water surface paint.
201811037228.2 The invention relates to a fluorine modified
polyaspartic polyurea coating and a preparation method.
201810429201.1 A method for synthesis of anti-oil primer resin for
smeary concrete floor.
2018110372297 A fluorinated polyaspartic polyurea resin and
synthesis method.
2018113083388 A preparation method of polyaspartic polyurea resin.
2019107078777 A sealant.
20201032 3954 .1 The invention discloses a water-based polyaspartic
polyurea resin and a preparation method.
Company Profile
Shenzhen Feiyang Protech Corp., Ltd. is specialized in researching
and producing polyaspartic resins and the series of new chemical
products since 2009. Feiyang’s headquarter is located in Shenzhen,
China. R&D center and production site are in Zhuhai, China. The
capacity is 26,000MT per year.
We are praised as “National-level High-tech Enterprise”, with more
than 100 polyaspartic invention patents. We also participated in
the compilation of 15 industry (group) standards for Polyaspartic
materials. Currently, we are the leading enterprise in this
segment, with the first market share in China and the pioneer in
the world.
Polyaspartic materials, nowadays, are mainly applied in areas
including industrial coatings, flooring, adhesives and waterproof
materials as well as structural materials. Polyaspartic is a
high-end new material in the coating’s industry. As Polyaspartic
has the comprehensive characteristics of "environmental protection,
energy saving, and long-lasting life", it can contribute to real
carbon neutrality for industries such as industrial coatings,
adhesives, waterproof materials and structural materials.
Our advantage lies in our substantial investment in research and
development. We not only have a professional and innovative
synthesis department, but also over twenty engineers in our
application department with extensive experience in the coatings
industry. This allows us to help customers develop new applications
and provide professional technical guidance.
Contact
Nowor Send Us an Email: marketing@feiyang.com.cn, feiyangjunyan@gmail.com