Fillers help expand epoxy's versatility by altering its consistency for specific applications. Each filler possesses a unique set of physical characteristics, but they can be generally categorised as either Adhesive (high density) or Fairing (low density). Adhesive filler mixtures cure to a strong, hard-to-sand plastic suitable for structural applications like bonding, filleting and hardware bonding. Fairing filler mixtures cure to a light, easily sandable material that is generally used for cosmetic or surface applications like shaping, filling and fairing. 403 Microfibre Blend is a high density filler used to create a multi-purpose, high strength adhesive used for structural applications like bonding, filleting and hardware bonding, while retaining excellent wetting and penetrating capabilities. As a blended filler, 413 Microfibre Blend, offers an added degree of thixotrophy and substantially improved spreading and working properties.