IOTA 9150 represents a significant advancement in liquid polysilazane technology, offering a unique combination of properties ideal for demanding protective and functional coatings. Its core chemistry revolves around a silicon-nitrogen (Si-N) backbone, primarily featuring methyl (Me) functional groups, and crucially incorporates the reactive Si-NH-Si bond. This structure enables its defining characteristic: effective room temperature curing through hydrolysis and oxidation reactions with ambient moisture and oxygen.

Key Advantages & Properties:

• Flexible Curing: Adjustable curing times at room temperature; accelerated curing possible with heat (60°C-200°C) or optional catalysts promoting Si-H/Si-NH-Si reactions for a robust 3D cross-linked network.

• Exceptional Adhesion: The Si-NH-Si bond readily reacts with surface -OH groups, providing outstanding adhesion (Cross-Hatch Grade 0) to diverse substrates: metals, alloys, glass, paint films, and plastics (PP, PC, PVC, PMMA).

• Optical Clarity: High transmittance (>95% visible light) makes it ideal for applications requiring transparency.

• Robust Performance: Delivers high hardness (up to 7H pencil hardness after 24h RT cure), excellent hydrophobicity (100°-105° contact angle), low linear shrinkage (<1%), and resistance to oxidation and corrosion.

• Process Versatility: Low viscosity (10-40 cP) allows application via smearing, dipping, spraying, or brushing.

• Thermal & Chemical Stability: Offers protection up to 1000°C (as a main coating) and demonstrates good masking against O₂ and H₂O. Uncured product is non-flammable.

• Easy Application & Cleanup: Simple dilution protocols (using non-polar solvents like alkanes, ethers, ketones, esters) and easy cleanup of uncured material with acetone/mineral spirits.
  

  IOTA 9150 excels in diverse fields:

  • Automotive: As a thin (3-8µm), high-gloss topcoat for brightening, corrosion resistance, anti-graffiti, and scratch protection. Applied by wiping/brushing (10-20% solids).

  • Military/Industrial Equipment: Anti-corrosion coatings (10-15µm) for radar and sensitive equipment via spraying/brushing (15-25% solids), preserving camouflage while offering durability, hydrophobicity, and heat resistance.

  • Adhesives & Composites: Especially non-flammable composites and polymer matrix composites.

  • Optics & Glass: Leveraging its transparency and hardness for abrasives and protective layers.

  • Easy-Clean Surfaces: Utilizes its hydrophobic nature and chemical resistance.

  Critical Handling & Compatibility:

  • Safety: IOTA 9150 is highly flammable, harmful if swallowed, and causes eye damage. Mandatory PPE (gloves, masks) is required during handling.

  • Storage: Store unopened containers at 0-20°C under inert gas (Ar/N₂) blanket. After opening, purge containers with Ar/N₂ and reseal immediately.

  • Solubility: Miscible with non-polar solvents (alkanes, ethers, ketones, esters). Insoluble in alcohols and glycol ethers.

  • Resin Compatibility: Compatible with epoxy silicone and silicone resins, enhancing cure speed and hardness. Mixed formulations cannot be recycled.

  • Cured Film Removal: Resistant to solvents; requires immersion in strong alkali (e.g., 10% NaOH) for >5 hours.

  Conclusion:

  IOTA 9150 liquid polysilazane stands out as a highly adaptable, high-performance coating solution. Its unique room-temperature curing Si-NH-Si chemistry, coupled with exceptional adhesion, optical clarity, hardness, and thermal/chemical resistance, makes it indispensable for demanding applications from automotive finishes to critical anti-corrosion protection. Careful adherence to handling, dilution, and curing protocols is essential to unlock its full potential safely and effectively.