Acrylic-Modified Polysilazane Resin | SIOResin® SIO-9261
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.
After curing, SIO-9261 forms a colorless, transparent coating film with very high pencil hardness (≥6H), superior yellowing resistance, outstanding weatherability, and excellent mechanical performance. Its amino functional groups can form covalent bonds with substrates, enhancing adhesion and mechanical strength. The resin is particularly suitable for UV-curable coatings in high- and low-temperature bonding, anti-corrosion weather-resistant coatings, insulating electrical components, and protective coatings for machinery and industrial equipment.
Price: $150.00/kg Inquiry Now
Product Features
- UV-curable, fast processing
- High hardness and excellent adhesion
- Excellent thermal, chemical, and weather resistance
- Hydrophobic and oleophobic coating properties
Suitable Substrates
- Metals: carbon steel, stainless steel, cast iron, aluminum, titanium, heat-resistant alloys
- Inorganics: ceramics, microcrystalline glass, cement, stone
- Polymers: various plastics
Service Temperature
- Continuous service: up to 300°C
- Short-term exposure: up to 500°C
The coating demonstrates excellent thermal shock and heat-cold cycling resistance, though actual performance depends on substrate stability.
Main Technical Indicators
Application Guidelines
- Curing: UV-curable; recommended dry film thickness 4–150 μm; curing time ~0.5 min
- Reactive Diluents: HDDA, TPGDA, or compatible polysilazane-grafted diluents
- Application Temperature: 25–90°C
- Pot Life: Unlimited if not exposed to UV
- Surface Preparation: Clean, dry, and roughened surface (sand or sandblast) improves adhesion
- Mixing: Resin and photoinitiator at ≈100 : 3–4 ratio under light-protected conditions
- UV Lamp: Wavelength 365–405 nm, recommended power 2 kW, initial irradiation distance >15 cm
Storage Instructions
- Keep in dry, cool, well-ventilated conditions (5–35°C) away from UV exposure, heat, and ignition sources.
- Shelf life: 12 months.
- Store unused or mixed material in opaque containers to prevent premature curing.
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