In industrial coatings, waterproof flooring, and steel structure protection, the right hardener is critical—it directly affects coating durability, application efficiency, and environmental compliance. FEICURE GB963B-100 is a high-performance, solvent-free HDI elastic hardener that combines excellent weather resistance and low-temperature flexibility. It has quickly become a preferred choice for long-lasting outdoor protection and flexible coatings.
What is GB963B-100?
GB963B-100 is a weather-resistant elastic hardener developed by Feiyang Protech. It is a prepolymer formed from polyester polyols and aliphatic isocyanates, offering low viscosity, high elasticity, outstanding weatherability, and solvent-free application. In short: it’s eco-friendly, easy to apply, aging-resistant, and crack-free—suitable for even the harshest protective coating scenarios.
Four Key Advantages
Fast Curing, High Efficiency
When mixed with hydroxyl components, GB963B-100 cures quickly, significantly reducing touch dry and hard dry times. It’s ideal for tight outdoor project schedules and can be applied at temperatures above 10°C, balancing efficiency and practicality.
High Elasticity, Crack Resistance
Once cured, the coating is flexible and elastic, moving with the substrate’s thermal expansion and contraction. This prevents cracking, peeling, and delamination from the source. It also delivers good tensile strength and scratch resistance for long-lasting protection.
Solvent-Free, Near-Zero VOC
With a solids content of up to 99.5%, GB963B-100 has almost no VOC emissions and no strong odor, fully meeting strict environmental standards. Its high solids allow achieving design thickness in a single coat, saving time and labor.
Superior Weatherability and UV Resistance
Its aliphatic structure ensures excellent resistance to UV, yellowing, acids, alkalis, and salt spray. Even after years of sun and rain exposure, coatings remain stable, non-powdering, and highly protective.
Product Basic Properties
Typical Applications
Extreme Low-Temperature Protection
Maintains coating flexibility even at -20°C without cracking, perfect for pipelines in cold regions, refrigerated equipment, and cold-chain storage.
Long-Term Outdoor Corrosion Protection
Ideal for bridges, storage tanks, steel structures, and factory exteriors. Offers high weatherability, salt spray resistance, and extended durability.
Eco-Friendly Elastic Coatings
When combined with polyaspartic resins, it can be used in waterproofing, flooring, elastic materials, and structural adhesives. Solvent-free and high-performing, it meets environmental standards.
GB963B-100 is fast-curing, highly elastic, solvent-free, and weather-resistant. It provides excellent balance between application efficiency, environmental compliance, and long-term durability. It is a reliable choice for industrial coatings, suitable for outdoor weather-resistant applications or low-temperature crack prevention.
Contact our technical team today to explore how Feiyang Protech’s advanced polyaspartic solutions can transform your coatings strategy. Contact our Tech Team