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silicone resin
silicone resin

LR-153 Alcohol-soluble Silicone Resin

The Silfluo LR-153 is a colorless, transparent silicone resin supplied as an ethanol solution. It is synthesized through the condensation of multifunctional silane monomers. Upon curing, it forms a hard, transparent film that provides reliable electrical insulation, abrasion resistance, heat resistance, aging resistance, and radiation resistance. The cured matrix maintains low-temperature flexibility, hydrophobicity, and moisture resistance without compromising optical clarity.


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Typical Technical Properties of Alcohol-soluble Silicone Resin LR-153


Silfluo Code:

LR-153

Appearance

Colorless transparent liquid

Solid content %

30±1

Viscosity (Flow Cup No. 4, 25°C, S)

10-18

Curing Profile:

Surface dry in ≤ 0.5 hours at room temperature; fully cured in 1 hour at 150°C


Applications of Alcohol-soluble Silicone Resin LR-153


  • Plastic Hardcoatings: Applied as a hardening and scratch-resistant coating for transparent plastics, including PMMA (acrylic) and PC (polycarbonate).

  • Electronic Conformal Coatings: Utilized as a dielectric protective coating for circuit boards and electronic components operating in high-temperature and high-humidity environments.

  • Metal & Decorative Protection: Serves as a clear protective finish for metal products and decorative materials to improve wear, UV, water, and corrosion resistance.

  • Glazing Applications: Functions as a transparent glazing finish for paper and ceramic surfaces.


Use Reference of Alcohol-soluble Silicone Resin LR-153


  • Chemical Incompatibility: This product must strictly avoid contact with acids, alkalis, organic salts, and amines. Exposure to these substances will trigger premature crosslinking, cause gelation, and degrade final product performance.

  • Surface Preparation: Substrates must be thoroughly cleaned and degreased using solvents such as ethanol, petroleum ether, or acetone prior to application.

  • Dilution & Curing: Can be diluted with alcohol-based solvents including methanol and ethanol. Following ambient solvent evaporation, the final crosslinking process can be accelerated via thermal baking.


Package & Storage of Alcohol-soluble Silicone Resin LR-153


  • In 200kg drum.

  • Keep in cool, dry place. Avoid acid and alkali contact. Avoid direct sunlight. Classified and transported as dangerous goods .

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