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  • Water Repellent IOTA EMUL 269

    Water Repellent IOTA EMUL 269

    Description:

    IOTA EMUL 269 is an aqueous emulsion of an hydrogen polysiloxane


    Examples of applications:

    1. Water repellent additive for plaster.

    2. Could be used during the manufacturing process of plasterboards and other plaster elements.

    3. Crosslinker for hydroxyl terminated silicones.

    4. Adhesion promoter for silicone elastomers on rubber and other polar surfaces.

    5.Treatment of fibers or mineral fillers.


    Advantages:

    1. Good water repellency to all types of textile substrates.

    2. When used with an appropriate catalyst, imparts durable water repellency.

    3. Improves fabric tear strength.

    Characteristics :

    1. Aspect : milky liquid

    2. Color :white

    3. Specific gravity at 25°C, approx. :1.0

    4. Dry content, % approx : 50

    5. pH, approx.: 3,5

    6. Solvent : none

    7. Thinner : water


    Processing:

    IOTA EMUL 269 is added to the water to be mixed with plaster.


    Plasterboards:

    Good water repellent properties could be obtained by adding 0.3% to 0.8% of IOTA EMUL 269 relative to the amount of plaster powder.

    The quantity of water repellent varies accordingly to the grade of plaster, the

    plaster/water ratio and the additives. In some cases,the plaster rheology may be

    modified .Preliminary tests are thus necessary.


    Textile by padding:

    IOTA EMUL 269 is easily diluted with water. If the catalyst IOTA SILCOLEASE EMUL 70827A is used, dilute the catalyst in water and then add this to the already diluted emulsion.

    As a water repellent for textile substrates, 0.5% - 2.0% silicone based on the weight of the fabric is recommended.

    The 20% of IOTA EMUL 70827A based on the amount of IOTA EMUL 269 is recommended to achieve excellent and durable water repellency.

    Nevertheless, preliminary tests are better to define the right amount.


    Packaging :

    IOTA EMUL 269 is available in 1000 kg containers with a vented closure.


    Storage and shelf life :

    When stored in its original packaging at a temperature of between +2°C and +30°C,

    IOTA EMUL 269 may be stored for up to 12 months from its date of manufacture.

    Comply with the storage instructions and expiry date marked on the packaging.

    Beyond this date, IOTA Silicone Oil no longer guarantees that the product meets the sales specifications.



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