Organic Polysilazane Ceramic Coatings for Automotive | SIOResin®
Solvent-free resin combines high surface hardness, hydrophobicity, chemical resistance and anti-graffiti performance for automotive exterior and interior applications
SIOResin® SIO-9233 is a solvent-free methyl RT curing polysilazane resin developed for high-performance organic polysilazane ceramic coatings. The resin targets automotive exterior and interior surfaces where scratch resistance, chemical resistance, water repellency and easy-clean performance are increasingly important.
Automotive surfaces face daily exposure to washing, abrasion, road contaminants, chemicals, moisture and temperature changes. Conventional protective coatings may need to balance appearance with durability. SIO-9233 offers coating formulators another approach based on polysilazane chemistry.
What Is an Organic Polysilazane Ceramic Coating?
An organic polysilazane ceramic coating is a protective coating based on organic polysilazane resin. During curing, the resin forms a dense crosslinked protective layer. The resulting coating can provide surface hardness, chemical resistance, hydrophobicity and thermal stability.
Polysilazane resins contain silicon-nitrogen bonds in their molecular backbone. Their reactive structure allows them to form durable protective networks during curing. This chemistry has attracted attention in advanced surface protection, including automotive coating applications.
SIOResin developed SIO-9233 for formulators seeking these characteristics in a solvent-free resin platform.
SIO-9233: A Solvent-Free Methyl Polysilazane Resin
SIO-9233 is a solvent-free methyl polysilazane resin for organic polysilazane ceramic coating systems, particularly for automotive exterior and interior surface protection.
Price: USD $120.00/KG Download TDS File
The resin can form a hard, transparent protective layer after curing. Its coating performance combines several functions that are relevant to automotive surface protection:
- High surface hardness
- Scratch and abrasion resistance
- Chemical resistance
- Hydrophobic protection
- Anti-graffiti performance
- Easy-clean surface characteristics
- High-temperature resistance
This combination allows formulators to explore protective coating systems that focus on both surface durability and appearance.
9H Hardness for Durable Surface Protection
Automotive surfaces encounter repeated contact with washing tools, dust, particles and everyday objects. Scratch resistance therefore remains a key consideration for protective coatings.
Coatings formulated with SIO-9233 can achieve up to 9H pencil hardness under the tested formulation and curing conditions. The hard surface helps improve resistance to everyday scratching and abrasion.
The hardness also supports the long-term appearance of coated surfaces. For automotive applications, this can be particularly relevant where gloss, smoothness and visual quality matter alongside physical protection.
Hydrophobic Protection with Approximately 110° Contact Angle
Water repellency is another important feature of automotive ceramic coatings. A coating formulated with SIO-9233 can achieve a water contact angle of approximately 110° in internal testing. The hydrophobic surface helps water bead and roll away more readily from the coated substrate.
Hydrophobicity can also contribute to easier cleaning. Reduced water and contaminant retention may help keep automotive surfaces cleaner between washing cycles. The result is not simply water repellency. It is a surface designed to combine hydrophobic protection with hardness and durability.
Anti-Graffiti and Easy-Clean Performance
SIO-9233 also demonstrates strong anti-graffiti performance. In internal testing, oil-based permanent marker can be readily removed from the cured coating by dry wiping. This characteristic reduces the retention of common markings and stains on the protected surface.
The performance may be valuable for automotive surfaces that require frequent cleaning or resistance to staining. It also creates opportunities beyond conventional paint protection, particularly for hard decorative surfaces and other high-contact components. For coating formulators, this provides another functional advantage within the same polysilazane-based coating platform.
Chemical Resistance for Automotive Surface Protection
Automotive coatings must withstand contact with a range of substances. These can include cleaning agents, road contaminants, oils and other chemicals encountered during vehicle use and maintenance. The crosslinked protective layer formed by SIO-9233 is designed to provide chemical resistance alongside surface hardness and hydrophobicity.
This combination supports the development of automotive paint protection coatings that aim to preserve surface appearance while improving resistance to everyday chemical exposure.
High-Temperature Resistance up to 800°C
SIO-9233 also offers a high level of thermal resistance for selected protective coating applications. Under the relevant test conditions, the cured coating demonstrates high-temperature resistance up to 800°C. This characteristic extends the potential use of polysilazane-based protective coatings to components exposed to elevated temperatures.
The actual service temperature depends on the coating formulation, film thickness, substrate and exposure conditions. Formulators should therefore evaluate the complete coating system for their specific application.
Applications in Automotive Exterior and Interior Coatings
SIO-9233 is designed as a versatile resin platform for automotive protective coating systems.
Automotive Exterior
Potential exterior applications include:
- Automotive paint and clear coat protection
- Ceramic paint protection coatings
- Exterior plastic and trim
- Metal components
- Decorative exterior surfaces
- Hydrophobic and easy-clean protective coatings
On exterior surfaces, the combination of hardness, hydrophobicity, chemical resistance and anti-graffiti performance can help protect appearance during everyday use.
Automotive Interior
The same technology can also support selected interior applications, including:
- Hard plastic trim
- Decorative panels
- Metal components H
- igh-contact surfaces
- Stain-resistant protective coatings
- Easy-clean surface treatments
Interior components often require a different balance of properties than exterior paint. Scratch resistance, chemical resistance and cleanability can be particularly important for surfaces exposed to frequent handling.
A Multifunctional Platform for Ceramic Coating Formulators
The value of SIO-9233 lies not in one isolated property. Its formulation potential comes from combining several surface functions within one polysilazane resin system. For coating developers, this creates an opportunity to design organic polysilazane ceramic coatings around specific application requirements. The resin can serve as a starting point for formulations that target:
Hardness → Scratch resistance → Chemical durability → Hydrophobicity → Easy cleaning → Surface protection
This multifunctional profile makes SIO-9233 relevant to both automotive paint protection and other demanding surface-protection applications.
Key Performance Characteristics of SIO-9233
| Property | Performance |
|---|---|
| Resin Type | Solvent-free methyl polysilazane resin |
| Coating Technology | Organic polysilazane ceramic coating |
| Pencil Hardness | Up to 9H |
| Water Contact Angle | Approximately 110° |
| Anti-Graffiti | Oil-based permanent marker readily removable by dry wiping |
| Scratch Resistance | Excellent |
| Chemical Resistance | High-performance protective coating characteristic |
| High-Temperature Resistance | Up to 800°C |
| Primary Applications | Automotive exterior and interior protective coatings |
Performance values are based on internal laboratory testing and may vary with formulation, substrate, coating thickness and curing conditions.
Supporting the Next Generation of Automotive Surface Protection
The development of SIO-9233 reflects a broader shift toward multifunctional protective coatings. Automotive surfaces increasingly need to combine appearance, durability and functional protection in a single coating system. Organic polysilazane chemistry provides a distinctive route to this goal. By combining a solvent-free methyl polysilazane resin with targeted coating formulation, manufacturers can develop protective surfaces with high hardness, hydrophobicity, chemical resistance and easy-clean characteristics.
With SIO-9233, SIOResin provides coating formulators with a dedicated resin platform for developing automotive ceramic coatings and paint protection systems for both exterior and interior surfaces.
About SIOResin
SIOResin(Guangzhou SIO New Material) is a leading manufacture specializing in developping sustainable products and technologies in new material field. We provide professional solutions regarding water-based polyurethane, water-based acrylic resin, water-based UV-curing resin, silicone resin, polyethylenimine (PEI), polysilazane resin, additives and curing Agents etc., which have been widely applied in various industries, such as coatings, cosmetics, textiles, biology, automotive and other high-tech industries.
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