What adhesive should be used to attach the Gyro Stabilizer to the hulls stringer system?
The boat builder or installer is responsible for selecting the structural adhesive to secure the Gyro Stabilizer’s aluminum saddle bearings to the boat’s GRP hull beams. The calculated shear stress in the structural adhesive between the saddles and the hull foundation beams for the above loads and 100% structural contact is 2.3 MPa (337 psi). Seakeeper recommends that the builder or installer use a structural adhesive with a minimum shear strength of 13.8 MPa (2000 psi) to provide a Factor of Safety of 6 (Margin of Safety of 5). Additionally, it is strongly suggested that the builder or installer test the compatibility of his structural adhesive with cast A356 T6 aluminum (the saddle beam material) and their GRP hull materials by laying up joints and doing mechanical property tests. This is standard practice in many yards when they have to adhesively bond two materials that they are not familiar with. Because bond strength and choice of adhesive can vary depending on the type of GRP hu
