Polyaspartic Resin: A Revolutionary Coating Solution

In the realm of industrial coatings, a groundbreaking technology emerged in the 1990s, known as polyaspartic resin. This innovative material is crafted through the reaction of sterically hindered secondary amines with isocyanates, resulting in a polymer network remarkably akin to polyurethanes. Renowned for its rapid curing capabilities and the ability to form thick layers in a single application, polyaspartic resin offers an eco-friendly solution with low to zero VOC emissions. Its applications are diverse, spanning from industrial coatings and corrosion protection to robust floor coatings.

Key Benefits of Polyaspartic Resin:

• Accelerated curing speed coupled with a manageable pot-life.
• Exceptional resistance to chemicals and outdoor elements.
• The potential for high-solid to solvent-free formulations.
• Capability to achieve substantial film thickness in one step.
• Reduction in the number of layers needed for superior corrosion protection.

What is polyaspartic resin?
Polyaspartic resin (polyaspartic polyurea resin) is short for polyaspartic acid ester resin. It is a compound containing amine-reactive functional groups and belongs to the aliphatic family. It is generally a liquid. Unlike the common curing mechanism of epoxy resins, polyaspartic resin must be cured with isocyanates, mainly specialty isocyanates such as HDI and HMDI. Epoxy resins are typically cured with curing agents such as polyether amines, anhydrides, and amides.

The structure of polyaspartic acid ester resin is shown in the figure below:

structure of polyaspartic acid ester resin

Depending on the substituent X, different products can be derived. For example:

the substituent X in F520 (Equivalent to Desmophen NH 1520)

the substituent X in F420 (Equivalent to Desmophen NH 1420)
 

Feiyang’s F330 features a trifunctional structure, enabling higher crosslink density and improved elasticity.

Structural features of amine-terminated polyether:
H₂N–(–O–R–)ₙ–NH₂

From a structural perspective, compared with amine-terminated polyethers, the amino groups in the molecular structure of polyaspartic ester resin are surrounded by a sterically hindered, crown-like environment, which reduces the amine reactivity. As a result, polyaspartic ester resins offer more flexible application methods.

Polyaspartic Resin for Coating – 30-Years Polyaspartic Resin Factory | Direct From Manufacturer

Feiyang Hot Selling Polyaspartic Resins
F520 = Desmophen NH 1520
F420 = Desmophen NH 1420
F220 = Desmophen NH 1220
F423 = Desmophen NH 1423
F528 = Desmophen NH 1520C
F2850 = Desmophen NH 1720/2850XP

Polyaspartic Polyurea Resin FEISPARTIC Series

What is polyaspartic polyurea?
Polyaspartic polyurea is a new type of aliphatic, slow-reacting, high-performance coating material that has emerged in the polyurea industry in recent years, and it is often referred to as the third generation of polyurea.

Polyaspartic polyurea is mainly formed through a rapid addition reaction between isocyanate groups (–NCO) and aspartate ester groups (–NH₂), producing tough urea linkages (–NH–CO–NH–) and building a highly crosslinked three-dimensional network structure. This reaction typically follows a “slow-to-fast” process: the aspartate ester acts as a “blocked” amine, delaying the reaction so that application becomes more controllable, ultimately forming a high-performance, solvent-free protective coating.

Polyaspartic polyurea technology creatively replaces the –OH groups used in traditional polyurethane technology and the –NH₂ groups used in spray polyurea with –NH groups, and introduces electron-withdrawing groups into the structure to further reduce reactivity. As a result, the application and coating process of polyaspartic polyurea becomes simpler, enabling a broader range of applications.

Polyaspartic coatings are premised on the reaction between polyisocyanate and a polyaspartic ester, an aliphatic diamine. This synthesis yields a novel aliphatic polyurea floor coating system, known for its desirable UV resistance and color stability. Polyaspartic resins outshine their counterparts like epoxy and acrylate, thanks to superior mechanical and chemical properties, such as adhesion, solvent resistance, and overall durability.

Key Application Areas:

• Exterior coatings where color stability is paramount.
• Swimming pools, furniture, roofs, and garages.
• Wind power installations and pipeline coatings.
• Infrastructure in malls, hospitals, airports, and more.

Advantages:

• Applicable in temperature ranges from -34°C to 60°C.
• High-temperature tolerance up to 245°C when cured.
• Superior wear, impact resistance, and mechanical strength.
• UV resistance and elasticity are markedly high.
• Enhanced decorative appeal and eco-friendliness.

Feiyang has been specializing in the production of raw materials for polyaspartic coatings for 30 years and can provide polyaspartic resins, hardeners and coating formulations. Some of our polyaspartic coating formulations: Polyaspartic Coating

Feel free to contact us: marketing@feiyang.com.cn

Our products list:

• Polyaspartic Resin
• Isocyanate Hardener
• Special Chemical

Learn more polyaspartic knowledge: Polyaspartic FAQ