Aerosil Fumed Silica – Resin Thickener (Cabosil Equivalent)

Aerosil is a lightweight fumed silica powder used to thicken resin systems for better application control. It prevents sagging and runoff, making resins ideal for bonding, filling, and vertical surfaces. Aerosil is chemically identical to Cabosil and is used interchangeably in marine and composite industries.

Key Features:

• Industry-standard fumed silica thickener
• Prevents sagging and runoff in resins
• Turns resin into a spreadable paste
• Equivalent to Cabosil – same performance, different brand name

Applications:

• Thickening epoxy, polyester, or vinyl ester resins
• Making structural bonding putties
• Preventing sag on vertical laminates and fillets

Fiberglass Florida stocks Aerosil (Cabosil equivalent) as the go-to resin thickener for marine and composite applications.