Chesterton’s ARC FCS300 is a silica reinforced concrete filler compound designed to fill concrete surfaces where form holes and surface deficiencies are present. It is trowable at thicknesses up to
1/4 inch (6 mm).

It is user friendly and will readily accept most ARC Composite Coatings for improved mechanical and chemical exposures.

• 100% solids, no shrinkage during cure
• Trowels easily, up to 1/4 inch (6 mm) 
• Ideal patch for vertical and overhead applications
• Cures in 6 to 10 hours
• Pre-packaged, easy to use
• Color: Brown

Typical applications:

• Form hole patching
• Crack sealing
• Underlayment for ARC Composites for Concrete
• Block wall filler coat
• Overhead patching

For maximum service temperature please view/download ARC FCS300 Product Data Sheet.