Most sealants are chemically compatible with Grace Self-Adhered Flashings provided that the sealant is applied to the high-density polyethylene film component of the flashing. Silicone, Acrylic, butyl, 1-part polyurethane, and 2-part polyurethanes are compatible with the adhesive side of Grace self-adhered flashings if the specific formulation does not contain hydrocarbon solvents.