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  • Leather processing waterproofing agent IOTA 1669

    Leather processing waterproofing agent IOTA 1669


    IOTA 1669 is α / ω- carboxy-modified polydimethylsiloxane fluids.

    Application examples:

    IOTA 1669 was developed specifically for chrome-tanned leather, persistent water repellent.

    It can also be used in other areas as a persistent water treatment, such as the polar surface water repellent.

    As a pigment or filler treating agent, which can improve compatibility with the organic polymer.

    IOTA 1669 can also be used as a modifier of the polymer chain. In the condensation reaction, it can be used as acid feedstock. Whereby the characteristics of the silicone may be introduced into a series of organic polymer (PA, PES, a polyester resin, PET ...).

    IOTA 1669 gives polyester and polyamide typical silicone properties, such as:

    1. The anti-adhesion

    2. The non-stick properties

    3. abrasion resistance : the scratch resistance

    5. slipperiness: Internal: more easily extruded    External: lubricating fiber ...

    6. waterproof

    7. weatherability

    8. The water vapor permeability

    9. Low temperature flexibility

    10. The impact modifier

    11. The high temperature stability

    12. The electrical insulation


    1. Low surface tension

    2. Waterproof

    3. Excellent weather resistance

    4. The formation of complexes with a transition metal salt

    5. The formation of hydrogen bonds

    6. Polar surface excellent anchoring agent

    7. Impart polar surface waterproofing agent


    1. Appearance: transparent liquid

    2. Color: Light yellow

    3. The active substance content,%,: about 99.9

    The flash point (closed cup), , approximately: 179

    5. Density, 25 , approximately: 0.99

    6. Viscosity, 25 , mm² / s, approximately: 250

    7. The acid value (mgKOH / g): 40-50

    8. solvent: ethanol, esters, ketones, ethers, aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons


    IOTA 1669 to 200kg or 1000kg containers.

    Shelf life:

    At -5 ~ +30 stored in sealed original containers, the standard IOTA 1669 is valid 24 months from date of manufacture. Refer to the storage recommendations and expiry date on the package. Pasted this date, IOTA SILICONES OIL no longer ensure that products meet sales specifications.

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