High corrosion resistance. Low VOC. Water-soluble technology. Developed for high-performance corrosion protection on screws, bolts, washers and complex components.
Published GEOPERT® 500 information specifies high corrosion resistance in salt-spray testing, subject to the applicable process and test conditions.
Unlike conventional oil-based zinc flake systems, GEOPERT® is a water-soluble coating technology designed with low VOC characteristics — an attractive option for manufacturers looking to reduce solvent-related process concerns.

GEOPERT® 500 is designed with relatively low viscosity, which helps reduce liquid build-up and improves coating uniformity on complex geometries. Suited to:
Because the coating is applied through a non-electrolytic process, zinc flake is particularly attractive for critical high-strength fasteners where hydrogen embrittlement control matters. Final suitability is always evaluated against your specification, substrate and heat treatment. More on hydrogen embrittlement control →
Published GEOPERT® documentation describes two coating cycles and two baking cycles, cured at around 320 to 330°C for 20 minutes, subject to the approved process specification.
Beyond GEOPERT® 500, the water-based line runs the wider Zincotec® family, so silver, black and decorative requirements stay on the same chemistry platform.
Silver, 320°C for 20 min. 1,000 hrs+ salt spray, heat resistance 400°C. Automotive parts, streetlight.
Bright silver, 310°C for 20 min. 1,000 hrs+ salt spray. Electric and electronic parts, decorative.
Glossy black, 220°C for 20 min. Clear glossy black finish for electrical and electronic parts.
GEOPERT® and related Zincotec® technologies are trademarks and products of Zincotec Co., Ltd., South Korea. Specific values depend on the selected product, component geometry, substrate, coating system, application parameters and the applicable test standard. Reference: Zincotec official website.
Tell us the part, the substrate and the salt spray figure you have to hit, and we will tell you which route suits it.