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ELASTOSIL® E303 Transluzent

1 of 230 products in this brand
ELASTOSIL® E303 Transluzent is an acetoxy-cure, free-flowable, solvent-based RTV-1 silicone dispersion. It cures at room temperature or at elevated temperatures by reacting with air humidity to form a flexible silicone coating. A typical application is the selective coating of heat exchangers (automotive radiators).

Product Type: 1K (1 component) Adhesive, Solventborne Coating, Solventborne Sealant

Features: Flexible, Free Flowing, Low Viscosity, Moisture Resistant, Outdoor Durability

Application Area: Automotive Radiator

Application Method: Brush, Dip Coating, Spray

Chemical Family: Silicones

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Specific Features
  • 1-component system
  • Acetoxy-cure
  • Low viscosity
  • Solvent-based

Applications & Uses

Application Area
Application Method
Application Details
  • Protective coating against moisture and environmental influence
  • Thin film coating for sealing applications
  • Typical application is selective coating of heat exchangers (automotive radiators).

Processing

ELASTOSIL® E303 TRANSLUZENT can be applied by

  • Dipping
  • Spraying
  • Brushing
  • Coating

Thinner coatings can be obtained by addition of solvents (e.g. toluene, white spirit), thicker coatings can be realized by multiple step coating. ELASTOSIL® E303 TRANSLUZENT contains about 55% of solvent therefore suitable equipment has to be used and precaution measures due to the solvent vapors have to be taken. A volume shrinkage of slightly above 50% has to be considered. ELASTOSIL® E303 TRANSLUZENT is a one-part room temperature curing coating therefore the curing rate depends on temperature and on atmospheric humidity. The curing rate can be accelerated by heat. Uncured or partially cured silicone can be removed by help of organic solvents such as alipatic or aromatic hydrocarboncleaning should take place before the rubber is fully cured. Once completely cured, only mechanical removal supported by prior solvent swell is possible. Swelling can be accelerated by elevated temperature. In thin films, Wacker Silicone Remover S8 is suited as well. We recommend running preliminary tests to optimize conditions for the particular application.

Properties

Cured Properties
ValueUnitsTest Method / Conditions
Elongation (at break)400%ISO 37
Shore Hardness A30DIN ISO 48-4
Tensile Strength (Type 3, at 23°C, d = 2 mm)5N/mm²ISO 37
Uncured Properties
ValueUnitsTest Method / Conditions
Curing Time (thickness: 0.5mm, at 23°C, 50 %r.h)120minutes
Density0.9g/cm³DIN EN ISO 2811-1
Dynamic Viscosity (at 25°C)500mPa·sDIN EN ISO 2555
Flash Pointapprox. 28 °CDIN 51376
Ignition Temperature345°CDIN 51794
Skin Formating Time (at 23°C, 50% r.h)5minutes
Solvent Content (White spirit)55%
Spreading of 2 cm³4.5 - 6cm
Properties
  • Ready-to-use
  • Free flowable material for coating and sealing applications
  • Application by brushing, dipping, spraying
  • For robust and thin protective coatings

Safety & Health

Safety Notes

ELASTOSIL® E303 TRANSLUZENT releases during cure a total of about 4 % acetic acid and 50 % white spirit on curing. These vapors should not be inhaled for long periods or in high concentrations. Hence good ventilation of the workplace is necessary.

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania