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    Contact:Nathan Zhang

  • Organic Polysilazane IOTA 9150K

    Organic Polysilazane IOTA 9150K


    IOTA 9150K is a liquid polysilazane, it is developed for room temperature cured coating systems. The product has a unique Si-NH-Si bond, can be cured at room temperature, curing mainly involved in the reaction of Si-NH-Si hydrolysis and oxidation. While the Si-NH-Si bond and the substrate surface-OH easily react, and bring the substrate and good adhesion. Addition the appropriate catalyst in the resin can promote Si-H and Si-NH-Si reaction, after curing resin to form three-dimensional cross-linked structure, giving the material good mechanical properties.

    IOTA 9150K has low viscosity and good adhesion, can be applied to various types of substrates by smearing, dipping, spraying, brushing and other methods, the main substrates are metals, alloys, glass, paint films and plastics (such as PP, PC, PVC, PMMA), etc.

    IOTA 9150K has high activity, generally solid content is 50%, could customized as customers’ requirements.

    Product Features

    Low viscosity

    Short surface dry time

    Various curing methods

    Non-flammable after curing

    Anti-oxidation, anti-corrosion

    Easy to clean

    Good adhesion on the metal ceramic graphite materials




    Non-flammable composites

    Polymer matrix composites

    Glass and Abrasives

    Applications with low surface tension and easy cleaning field

    Technical index

    Appearance: Colorless to light yellow transparent liquid

    Molecular weight (Mn): 800-900

    Solid content: ≥50% (other contents could be customized)

    Liquid Density: 0.98g/cm3-0.99g/cm3

    Viscosity: 10cp-40cp

    Cracking threshold: 100µm+(coating thickness)

    Curing conditions: cured in room temperature without catalyst

    Surface dry time in room temp.: 1min-10min (could be customized)

    Totally cured time:  a. more than 24hours in room temp.

                       b. Heating could promote the curing process, heat in 120℃-  150℃ for 2-5hours after surface dry.

    The hardness after cured:  Room temp. cured for 12hours:  5H

                             Room temp. cured for 24hours:  7H

    Hydrophobic angle: 100°-105°

    Recommended temperature of varnish coating: <300℃

    Recommended operating temperature with main coating: <1000℃

    Chemical masking: Well performed with O2,H2O and other gas

    Linear shrinkage: <1%

    Transmittance (visible light): >95%

    Metal Adhesion (Cross-Hatch): 0 grade

    Shelf life: 12months in unopened condition


    ①   The heating curing process of IOTA 9150K is operated after surface dried, curing temp. is 60℃-200℃. The totally cured time will be shorten as the temp increasing.

    ②   The operating temp. of IOTA 9150K is related to the coating thickness, the higher thickness, the better protection, but the coating is easy to be crack in high temperature.


    The product could be miscible with most non-polar solvents, such as alkanes, ethers, ketones, esters. Insoluble in alcohol and ether solvents, such as diethylene glycol dimethyl ether, diethylene glycol dibutyl ether, tetraethyl ether Butyl glycol ether.

    It’s also miscible with a variety of resins, such as epoxy silicone resin, silicone resin, it will shorten the curing time and improve resin hardness when mixed with silicone resins.

    Operation methods

    Operating and storing in a dry, cool and well-ventilated environment, away from heat and fire sources, the recommended temperature is 0-20℃.

    The gloves, masks, etc. is necessary when taking the product.

    Uncured product should not be placed close to fire sources, humid air, or water.

    The container must be replace the air with nitrogen/argon and completely sealed in time after use.

    Unused product that has been formulated cannot be recycled and should be disposed of in accordance with local regulations.

    Products beyond the shelf life can be used only after the retesting complied.


    Packed with metal container in 100ml, 1L and 5L.


    Proper cleaning methods are important, quickly wipe down the surface with acetone or mineral spirits after use.

    Once IOTA 9150K is cured, the coating cannot be washed away by solvent. It can be treated with strong alkali such as sodium hydroxide 10% aqueous solution for more than 5 hours.


    The storage environment should be dry, cool and well ventilated, away from heat and fire sources. The packaging container must be kept tightly closed and handled with care. The storage temperature should be kept between 0°C and 20°C, and the storage period is 12 months.

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