UltraSeal XT plus hydrophobic pit and fissure sealant is a light-cured, radiopaque, fluoride-releasing composite sealant. Features: - It is strong and wear-resistant because it is a 58%-filled resin and has low polymerization shrinkage. - The spiral in the Inspiral Brush tip causes shear thinning of the filled, thixotropic resin, reducing its viscosity as it is placed. - The resin firms when shear thinning ceases and placement is complete, preventing the resin from running before it can be light cured. - High retention rate. - Direct delivery into difficult-to-access areas. - Bubble-free, drip-free placement. - High marginal retention prevents microleakage. - Penetrates deepest pits and fissures. - Pit and fissure sealant.