Polysilazane
Today, We’d like to talk with you about polysilazane — a remarkable material we’ve been studying for years — and how we’re using it to tackle tough industrial challenges.
Polysilazanes: Benefits and Challenges
Polysilazanes are high-performance materials known for their heat resistance, hardness, and excellent corrosion resistance. They can also be transparent and electrically insulating, which makes them ideal for demanding environments. For instance, they help protect electronic components at high temperatures or ensure bridge coatings remain rust-free for decades.
However, polysilazanes aren’t without flaws. They tend to be brittle and lack flexibility. Traditional versions are costly and require complicated processing. These issues often frustrate customers. That’s why we started from the molecular structure—developing modification techniques to make the material more practical and versatile.
Download SIOResin® Polysilazane Brochure
Our R&D Breakthroughs as a Polysilazane Supplier
As one of China’s leading polysilazane suppliers, we understand both the potential and limitations of this material. Many products on the market perform well under heat and offer high hardness, yet they usually suffer from poor flexibility and high processing costs. These pain points often discourage customers from moving forward.
To address this, we focused on structural modification. By introducing silicone, epoxy, and polyester chains, we improved flexibility and made processing easier. Even after a 180° bend, the coating stays intact.For example, we developed low-temperature curing systems that harden at room temperature or within 80–180°C. This lowers energy consumption and expands compatibility with different substrates. We also enhanced environmental performance to meet global safety and export standards.
Over the years, we’ve worked with clients in aerospace, electronics, and chemical industries, building strong experience in various applications. Whether it’s a coating that resists 1000°C for aerospace use or a high-transparency encapsulant for electronic devices, we can tailor solutions to your needs. Polysilazanes are also an excellent choice for preparing ceramic coatings, offering strong performance in both protective and functional applications.. As your polysilazane supplier, we aim not only to deliver materials—but to help you solve real problems.
7 Recommended Products
1. SIO-9233 RT Curing Polysilazane Resin
SIO-9233 is a low-viscosity liquid polysilazane resin featuring a silicon-nitrogen (Si–N) backbone, specially engineered for both ambient and heat-curing coating applications. Its Si–N–Si structural linkages enable self-curing at room temperature through hydrolysis and oxidation, forming a robust three-dimensional crosslinked network that imparts excellent mechanical strength.
Features:
- Low viscosity, high hardness
- Excellent hydrophobicity
- High heat resistance, Non-flammable after curing
- Anti-oxidation and corrosion resistance
- Anti-graffiti surface
- Strong adhesion to metal and ceramic substrates
- Multiple curing methods
Price: USD $120/KG Download TDS
2. SIO-9114 Silicone-Modified Polysilazane Resin
SIO-9114 is a two-component, silicone-modified polysilazane system. The modified polysilazane offers outstanding toughness, adhesion, and anti-yellowing properties. It maintains excellent flexibility even under 180° bending without cracking. The coating achieves 0 grade adhesion (best), and significantly enhances hydrophobicity, stain resistance, insulation, and dielectric strength.
The clearcoat without fillers can withstand temperatures above 330°C without yellowing. With functional fillers, it can resist temperatures above 600°C. This dramatically expands the performance range and application scope of polysilazane coatings.
Price: $120/KG Download TDS
3. SIO-9112 Epoxy-Modified Polysilazane
SIO-9112 is a high-performance epoxy-modified polysilazane resin that uses polysilazane as the primary film-forming agent, blended with high-performance epoxy resins, and optimized with diluents, inhibitors, and leveling agents to improve processability. It cures via chemical crosslinking and forms covalent bonds with the substrate, significantly enhancing mechanical strength, heat resistance, and weatherability. It is suitable for demanding environments requiring adhesion and protection.
Price: $120/KG Download TDS
4. SIO-9312 Methyl Vinyl Polysilazane
SIO-9312 is a methyl vinyl polysilazane polymer with a Si–N bonded backbone. The molecular structure contains reactive carbon-carbon double bonds (Si–C=CH₂), offering unsaturated reactive sites. This polymer exhibits unique reactivity: the Si–N bonds readily react with hydroxyl-containing substances, enabling its use as an amine-type curing agent. Meanwhile, the unsaturated double bonds allow for addition reactions, facilitating molecular weight regulation or functional group introduction.
SIO-9312 combines the processability of organosilicon materials with the high-temperature resistance of inorganic compounds, offering thermal stability up to 600–800°C. It can also be pyrolyzed into ceramic materials.
Price: USD $120/KG Download TDS
5. SIO-9113 Methylhydropolysilazane
SIO-9113 is a liquid polysilazane with a Si–N backbone, exhibiting excellent thermal stability and reactivity. It contains reactive Si–H groups in its molecular structure, which can transform into SiCN, SiCNO, or silica-based ceramic materials at high temperatures, making it an ideal precursor for Si–C–N ceramics. When reacted with polymers containing olefin structures via hydrosilylation, it significantly increases ceramic yield (>75%), and is widely used in high-performance ceramics and high-temperature composite materials.
Price: USD $120/KG Download TDS
6. SIO-9333 Perhydropolysilazane (PHPS) - Inorganic Polysilazane
SIO-9333 is a high-performance liquid inorganic precursor coating based on PHPS resin, diluted with inert solvents, wetting metals, ceramics, glass and polymers easily, forming a colorless transparent dense wet film at room temperature; after moisture/heat curing, it turns into a high-purity dense SiO2/SiON ceramic layer with ultra-high hardness, barrier properties and high-temperature oxidation resistance, suitable for demanding protection, insulation and barrier applications.
Price: USD $1200/KG Download TDS
7. SIO-9261 Acrylic-Modified Polysilazane Resin
Acrylic-Modified Polysilazane Resin is a high-performance polymer consisting of a polysilazane backbone grafted with acrylate functional groups, combining the excellent thermal, mechanical, and chemical stability of polysilazane with the rapid UV-curing capability of acrylates. SIOResin® SIO-9261 is a one-component, UV-curable acrylic-modified polysilazane resin designed to deliver exceptional hardness, adhesion, and durability for advanced coating and bonding applications..
Price: USD $150/KG Download TDS
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.
Please feel free to contact us via Email sales@sioresin.com if you would like to learn more about our products or request samples!