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A. Liquid Materials

PFAS-Free Water-Repellent Coating

GTA fluorine-free hydrophobic coatings are reactive nanometer-scale surface-treatment materials. After application and drying on compatible substrates, they form a transparent water-repellent film that helps minimize water and dirt adhesion while preserving the substrate appearance and supporting easier cleaning. The series is designed for low-viscosity application, low refractive index, high optical transmittance, weather resistance, and solvent resistance. Select the appropriate grade based on substrate compatibility, drying conditions, and moisture-protection requirements.
Key Technical Features
01 Formulated without PFOA / PFOS
The formulation is specified as PFOA/PFOS-free; consult current test documentation and the SDS for substance compliance.
02 Transparent Nanocoating
Forms a transparent film after drying to help preserve the original substrate appearance.
03 Optical and Processing Properties
Low-viscosity, low-refractive-index design with high light transmission for thin-film applications.
04 Water Repellency and Easy Cleaning
An increased water contact angle helps reduce the adhesion of water droplets and contaminants.
Typical applications: moisture-repellent and easy-clean surfaces for electronic components; compatible transparent substrates and mold-release support.
Hydrophobic Principle and Use Case
The contact-angle diagram illustrates surface wettability. Actual angles depend on the grade and test conditions.
Water Contact Angle
Contact angle is used to characterize droplet wetting on a solid surface.
Typical Applications
Transparent Water-Repellent Surface Protection
The transparent nanocoating helps limit the adhesion of water droplets and dirt on compatible electronic components and substrates.
Transparent Water-Repellent Surface Protection
Illustration of a water droplet and surface contaminants (existing image)
Technical Specifications
Representative AS-601 Series properties for initial grade selection and process evaluation.
PropertyUnitAS-601-PAS-601-KMSAS-601-KMH
Appearance—Clear, colorlessClear, colorlessClear, colorless
Water contact angle°>100>90>90
Flash point°C<60<0>60
Drying conditions—
Air dry: 25°C × 30 min
Oven: 150°C × 10 min
Air dry: 25°C × 30 min
Oven: 150°C × 10 min
Air dry: 25°C × 120 min
Oven: 150°C × 50 min
Other features—Mold release; moisture protectionHigh adhesion; moisture protectionHigh adhesion; moisture protection
Packaging20 L
Note: Values shown are for reference only and are not guaranteed shipment specifications. Refer to the latest product TDS for actual specifications. Consult the applicable SDS for flash-point information and handling/storage safety.
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