FLAG Resin was developed at the request of professional builders who were looking for a thicker bodied resin so they could save on the amount of fillers they were having to use for laminating, fairing, gluing and filleting.
You will probably still want to use fillers, but not nearly as much. It is also ideal for using over Low Viscosity resin to fill the weave of already wet-out fabrics with fewer coats. These features both represent great cost savings.
We highly recommend this resin for general purpose gluing applications where wet-out of fiberglass is not a consideration, as well as for all your filleting and fairing needs. FLAG Resin is a "medium" body resin specifically designed to perform as an unfilled or filled adhesive and structural laminating foundation.
• Faster curing than MAS Low Viscosity Resin when mixed with the Medium Hardener. Keeps fillets and fairing mixes from slumping
• Sandable the next day when cured at 60°F and at higher temperatures using the Medium Hardener
• May be used with all MAS hardeners (2:1 mix ratio), however, for filled applications MAS recommends using the Medium Hardener