GB805A-100: A Solvent-Free Isocyanate Hardener for Durable Coating Systems

In coatings, adhesives, and other chemical systems, the hardener plays a major role in final product performance. Isocyanate hardeners act as the crosslinking component. They help liquid materials cure into strong, stable, and long-lasting solid films.
GB805A-100 is a solvent-free isocyanate hardener developed and produced by Feiyang Protech. It contains active -NCO groups and is used in durable industrial coating systems. With no volatile solvents, good mechanical performance, and broad formulation flexibility, it gives manufacturers a cleaner way to build tough coating products.

What Is GB805A-100?

GB805A-100 is a solvent-free isocyanate hardener with active -NCO groups. Unlike traditional solvent-based hardeners, it contains no volatile solvents. This makes it a good fit for high-solid and low-viscosity coating systems.
The solvent-free structure helps reduce solvent emissions. It also lowers some of the safety and handling concerns linked to solvent evaporation during production or application.
The curing process comes from the reaction between -NCO groups and active groups such as hydroxyl or amine groups in resins. This reaction crosslinks liquid resin molecules into a dense three-dimensional structure. The cured film gains key properties such as abrasion resistance, waterproofing, chemical resistance, and long-term durability.

Solvent-Free Structure with Strong Film Performance

GB805A-100 gives formulators a way to reduce solvent content while keeping the coating strong and durable. Its value comes from four main areas: solvent-free processing, mechanical strength, resistance properties, and resin compatibility.

Please refer to the product data table for typical values under standard conditions at 25°C.

Main Performance Advantages

Solvent-free formulation

GB805A-100 contains no volatile solvents. It can be used in high-solid, low-viscosity coating systems and helps reduce solvent emissions in industrial coating production.

Good mechanical strength

When used with Feiyang Protech polyaspartic resins, GB805A-100 helps form coating films with good elongation and tensile strength. The cured films also offer strong abrasion resistance and impact resistance.

Weather and chemical resistance

Coatings made with GB805A-100 show good resistance to water, acids, alkalis, salt spray, and low temperatures. These properties help the coating perform in outdoor, wet, corrosive, or low-temperature environments.

Broad resin compatibility

GB805A-100 can be used with different resin systems. It works especially well with Feiyang Protech polyaspartic resins, giving formulators more room to adjust film performance for different applications.

Typical Applications of GB805A-100

GB805A-100 is mainly used in coating systems that require durability, flexibility, waterproofing, or chemical resistance. Typical applications include waterproof coatings, elastic wear-resistant coatings, exterior wall coatings, and flooring systems.

Waterproof Coatings

GB805A-100 can be used with Feiyang Protech polyaspartic resins to produce general-purpose waterproof coatings. These coatings can be applied in buildings, pipelines, and other areas that need long-term waterproof protection.

Elastic Wear-Resistant Coatings

When combined with Feiyang Protech polyaspartic resin D2925, GB805A-100 can be used to formulate elastic wear-resistant coatings. These systems are useful for floors, mechanical equipment surfaces, and other areas that need both flexibility and abrasion resistance.

Exterior Wall and Flooring Coatings

GB805A-100 can also be used with Feiyang Protech polyaspartic resins in exterior wall coatings and flooring systems. The cured films provide decorative appearance, weather resistance, water resistance, and corrosion protection. They can be used on outdoor surfaces, industrial floors, and other heavy-duty coating areas.
Beyond coatings, GB805A-100 can also be considered for adhesives, sealants, and other polyurethane-related systems that require an isocyanate-based curing component.

Built for Lower-Solvent and Durable Coating Systems

GB805A-100 helps formulators develop coating systems with lower solvent content, good film strength, and resistance to water, chemicals, and weathering.
When used with Feiyang Protech polyaspartic resins, it works well in waterproof coatings, elastic wear-resistant coatings, exterior wall coatings, and flooring systems. For manufacturers looking to build cleaner coating products without giving up durability, GB805A-100 is a solid curing component to evaluate.