Isocyanate Hardener
FEICURE GB963B-100
Alternative to Desmodur E30700 (E2863XP)
FEICURE GB963B-100 is a solvent-free aliphatic polyurethane prepolymer curing agent. With very low viscosity, high elasticity and excellent weather resistance, it is suitable for high-solids weather-resistant topcoats, offering good flexibility, tensile strength, scratch resistance, long-term UV resistance, and excellent resistance to acid, alkali and salt spray.

Typical Properties
| Index | Value |
|---|---|
| Appearance | Colorless or light yellow transparent liquid |
| Hazen (Pt-Co) | ≤50 |
| Solid Content (%) | > 99 |
| NCO Content (%) | 10.8 ~ 11.2 |
| Viscosity (mPa.s/25℃) | 1000 ~ 2000 |
| Relative density (25℃) | 1.12±0.02 |
| HDI Content (%) | ≤0.5 |
Applications
- Used with polyaspartic resins to produce environmentally friendly elastic materials.
- Improves the flexibility of polyurethane coatings.
- Suitable for high-solids, weather-resistant adhesives and structural adhesives.
- Used in waterproof coatings, floor coatings, and anti-corrosion coatings for steel structures.
Packing & Storage Information
Packing
200 Kgs/Drum, 10 Kgs/Drum
Shelf Life
FEICURE GB963B-100 must be stored in airtight containers to prevent contact with moisture. Recommended storage temperature is below 30°C (≤86°F). The shelf life in the closed original container is 12 months.
Notice
- FEICURE GB963B-100 is a combustible material, it is required to be kept away from fire sources, sealed and stored in a cool, dry and ventilated environment, and cannot be applied below 10°C. The storage period is 12 months. After the expiration date, the test is qualified and it can still be used.
- The coating formulated with FEICURE GB963B-100 should be tested for performance after one week’s maintenance.
Why Choose Feiyang Protech
In-house R&D lab
Continuous innovation and quality assurance
3 production plants
Stable supply and global service
26,000-ton annual capacity
Strong capacity to support your growth
200+ Customers in 30+ Countries
Trusted by coating manufacturers worldwide
80+ patents
Continuous innovation backed by independent intellectual property
Get In Touch
With The Feiyang Protech Team
Feiyang Protech has an in-house R&D lab since 2004 with 40 engineers, providing custom formulas and technical support. The company operates three plants with 60,000 square meters of production area, serving over 200 firms in more than 30 countries. It offers factory-direct supply with economies of scale, a 26,000-ton capacity, and over 30 years of industry experience. Feiyang Protech also holds 84 invention patents, 17 industry standards, and ECOVADIS Silver certification.
