Styrene Thinner


Unlock the full potential of your polyester resins and gelcoats with our Styrene Thinner. Specially formulated to ease spraying and enhance penetration, this product is your go-to solution for achieving a flawless finish. Recommended thinning at 10 to 15% by volume, it’s designed for both effectiveness and safety. Ideal for various applications, from marine to industrial.


What is Styrene?:

Styrene serves as an efficient thinner for polyester resins and gelcoats. Its unique properties not only facilitate easier spraying but also ensure enhanced penetration of porous surfaces, making your projects more effective and long-lasting.

Key Features:

  • Efficient Thinning: Ideal for adjusting the viscosity of polyester resins and gelcoats.
  • Improved Penetration: Achieves better absorption into porous surfaces, ensuring a robust bond.
  • Optimal Mixing Ratio: We recommend thinning at about 10 to 15% by volume for best results.

General Information on Styrene:

Styrene is an organic compound with the chemical formula C8H8. It’s a derivative of benzene and is a colorless liquid that evaporates easily and has a sweet smell. Widely used in the production of polystyrene plastics and resins, styrene plays a pivotal role in various industries. When used as a thinner, it modifies the properties of the primary material, making it more suitable for specific applications like spraying or coating.

Thinning instructions:

  1. Ensure the area is clean and free from contaminants.
  2. Measure the required amount of polyester resin or gelcoat.
  3. Add styrene, thinning at a ratio of 10 to 15% by volume.
  4. Mix thoroughly until a consistent mixture is achieved.
  5. Apply as needed, following the guidelines of the primary material.


  • Always work in a well-ventilated area to minimize inhalation of fumes.
  • Wear protective gloves and eyewear during handling and application.
  • Store styrene in a cool, dry place away from open flames or heat sources.
  • Keep out of reach of children and pets.
  • If in contact with skin, wash immediately with soap and water.
  • Seek medical attention if ingested or if there’s contact with eyes.


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