YCR-9960 is a high-temperature resistant polysilazane product dual-functional for fiber surface treatment and metal protective coating, formulated with high-purity polysilazane resin and ceramic functional additives. It can be used as a professional sizing agent for carbon fiber, glass fiber and basalt fiber, effectively improving the interfacial bonding strength between fiber and resin matrix in composite materials. As a protective coating, it cures to form a dense inorganic Si-C-N ceramic layer, delivering stable long-term protection up to 800℃, excellent thermal shock resistance and superior anti-corrosion performance. It fits carbon steel, stainless steel, high-temperature alloy and other metal substrates, widely used in advanced composite material manufacturing and industrial high-temperature equipment protection.

• Type: High-temperature resistant polysilazane sizing agent & coating

• Curing Condition: 200℃~260℃ heat curing

• Long-term working temperature: ≤800℃

• Short-term peak temperature: 1000℃

• Film hardness: 6H~7H pencil hardness• Adhesion: Grade 0 (cross-cut test)

• Thermal shock resistance: ≥20 cycles (room temperature ↔ 600℃)

• Theoretical coverage: 5–10 m²/kg (coating use)

• Dual-functional design for fiber sizing and metal protective coating

• Excellent high temperature resistance, long-term stable service up to 800℃

• Outstanding thermal shock resistance, no cracking or peeling under drastic temperature changes

• Significant improvement of fiber-resin interfacial bonding for composite materials

• Superior anti-corrosion and anti-oxidation performance for metal substrates

• Low viscosity, good wetting and leveling performance for easy construction

• Non-toxic, solvent-free optional formula, environmentally friendly

• Compatible with epoxy, polyester, vinyl and other resin matrix systems

• Sizing agent for carbon fiber, glass fiber and basalt fiber in composite material manufacturing

• High-temperature anti-corrosion coating for industrial furnace internal metal parts

• Protective coating for high-temperature alloy and stainless steel components

• Surface treatment for ceramic matrix composite (CMC) raw materials

• High-temperature insulation coating for electronic and electrical equipment

• Anti-oxidation protection for heat treatment fixtures and tools

• Surface modification for inorganic fibers and ceramic powders