Unisil SE 55L is an emulsion of reactive polydimethylsiloxane in water. This product offers a stable dispersion of polydimethylsiloxane with reactive properties, suitable for various industrial applications. Its water-based formulation ensures compatibility in processes that require a siloxane component, eliminating the need for organic solvents.

Functions: Water Repellent

End Uses: Acrylic Paints, Latex Paint, Silicate Paint, Varnishes, Waterproof Coating

Features: Excellent Penetration, High Durability, Hydrophobic, Low Moisture Vapor Permeability, Water Resistance, Weather Resistance

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Identification & Functionality

CASE Ingredients Functions
Industrial Additives Functions
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Industrial Additives Features
Product Highlights
  • After application, it reacts chemically with the reaction groups of the treated material and forms a durable protective waterproof coating chemically bonded to the substrate.
  • When used as an additive in paint materials does not reduce their storage stability. This allows to use it as an additive to various water-based paints (acrylic, styrene- acrylic, latex), to improve the properties of the paint, the technology of its application and properties of the coating.

Applications & Uses

Markets
Applications
Application Method
Coating End Applications
Use Level
1.0 - 3.0 wt%, 0.2 - 0.4 (Perlite or vermiculite), 0.1 - 0.2 (Clay)
Product Applications
  • As an additive to water-based paints based on acrylic, styrene-acrylic, latex, silicone or silicat;
  • for hydrophobizing treatment of expanded materials (perlite, vermiculite, expanded clay);
  • to impart water-repellent properties to stone wool and glass wool.

    Application (examples)
    As the additive to water based paints: Add undiluted to paints and varnishes during or after their manufacture in an amount of 1,0 to 3,0 % by weight of the total composition, mix thoroughly. To determine a more accurate dosage, it is necessary to conduct individual tests taking into account the type of coating.

    When processing expanded materials.
    Preparation of working solution:

    Dilute 1 L of Unisil SE-55L in (5 – 10) L of water, depending on the absorbency and type of the substrate. It is recommended to prepare a one-off portion of water repellent in the amount not exceeding the consumption per one working day.

    Application:
    By spraying. The flow rate for hydrophobization of perlite or vermiculite is (0,2 – 0,4) % for expanded clay (0,1 – 0,2) % (by weight). The emulsion csn be sprayed onto warm foam to avoid an additional drying process. However, prolonged heating of the treated material should be avoided.

Precautions for Use
  • When sampling the product, do not allow it to remain in an open container for a long time. After partially withdrawing the product, the container must be hermetically sealed.
  • Always test the selected concentration of Unisil SE-55L on a small sample of material to determine the optimum amount of material and suitability for your particular application.

Properties

Physical Form
Appearance
White emulsion
Specifications
ValueUnitsTest Method / Conditions
Mass Content of Non-Volatile Substance (at 103.0 - 107.0 °C, 73.0 - 77.0 min,1.8 - 2.2 g)min. 55%EN ISO 3251
Funnel Viscosity (at 19.5 - 20.5 °C, by viscometer B - 243.0 - 249.0, nozzle diameter 4 mm)10 - 50sEN ISO 2431
Stability at Dilutionmin. 24h-
pH (The reaction of medium ,25% aqueous solution)6.0 - 7.0--
Product Properties
  • Good penetration into the pores of the processed material;
  • no hazardous chemicals are released during application;
  • retains gas permeability of materials after application and drying of the coating;
  • addition of an emulsion to water-based paint and varnish coatings improves water-repellent properties, water resistance, vapor permeability, weather resistance and durability of the coating.

Packaging & Availability

Packaging Type
Packaging Information
  • Polymer canisters up to 25 dm³
  • polyethylene drums up to 50 dm³
  • barrels combined/steel-polyethylene up to 200 dm³
  • barrels of polyethylene, 220 dm³
  • special polymeric containers up to 1 m³.

Storage & Handling

Shelf Life
6 months
Storage Information
  • The shelf life of is 6 months at temperature from 5 °C to 30 °C. Store in original containers. Store in a cool, dry, well-ventilated place, protect from moisture and direct sunlight, away from heaters.
  • Storage over the date specified on the label does not necessarily mean the product is unusable. In case if store more please check the properties of product before use.