Kukdo KD-420 is a high-temperature resistant fast-curing solid bisphenol A epoxy resin in KD series, designed for protective coating systems in harsh environments such as high temperature and high humidity. It is milky white solid with fast curing characteristics, and the cured film has excellent resistance to hot water and water vapor erosion, as well as strong substrate adhesion and mechanical strength.
Excellent high temperature and humidity resistance - Resists erosion of 90℃ hot water and water vapor, maintaining good adhesion after long-term immersion
Fast curing and high efficiency - Fast curing speed, shortening processing cycle and improving production efficiency
Strong substrate adhesion - Excellent adhesion to various metal substrates, firm and long-lasting bonding
Stable mechanical properties - High strength and good toughness of cured film, long service life
Wide process adaptability - Compatible with mainstream coating processes, flexible formula preparation
Oil and Gas Extraction Equipment - Protective coating for pipelines and equipment related to oil well hydraulic fracturing operations
High-Temperature Water Vapor Pipelines - Anti-corrosion coatings for hot water and water vapor transmission pipelines and supporting components
Industrial Boiler Accessories - Protective coating for metal accessories in high-temperature environments around boilers
Components in Humid and Hot Environments - Protection of building steel structures and mechanical parts under high humidity and high temperature working conditions
Automotive Thermal Management System - Matching of protective coatings for high-temperature components around automotive engines
| Appearance | Milky white solid particles, no obvious impurities |
| Type | High-Temperature Resistant Fast-Curing Solid Bisphenol A Epoxy Resin |
| Chemical Category | Bisphenol A Epoxy Resin |
| Epoxy Equivalent (g/mol) | 230-260 |
| Softening Point (℃) | 73-85 |
| Melt Viscosity (150℃, mPa·s) | 25-50 |
| Volatile Content (%) | ≤0.5 |
| High Temperature Resistance | Maintains good adhesion after 9 days of immersion in 90℃ hot water |
| Impact Resistance (kg·cm) | ≥45 |
| Adhesion (Grade) | ≤1 |
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