This is the final report for the Strategic Environmental Research and Development Program (SERDP) funded project PP1135, Primeless RTV Silicone Sealants/Adhesives. The objective of the project, the development of primerless addition curable silicone sealants/adhesives, was met for all three phases of the program. Detailed results for the first four years of effort also were reported in SERDP technical reports Primeless RTV Silicone Sealants/Adhesives - PP1135 issued in 1999, 2000, 2001, ...