2.3 Selection of Installation Method

The Seakeeper 6 can be affixed to the hull structure using two methods:

1) Bolt-In installation
2) Saddle installation

See figures below.

Option 1 would be applied when a metal structure is available for attachment. The foundation would fasten directly to hull structure using isolation gaskets and sixteen M12-1.75 fasteners. Depending on the structure to which the Seakeeper is fastened, blind threaded holes or thru-bolting can be utilized.

Option 2 would be most commonly used on a hull constructed of glass reinforced plastic (GRP) or fiberglass. For this option, four 7.5 in. (191 mm) long by 3.38 in. (85.7 mm) deep saddles are bonded to properly spaced and prepared structural members that are an integral part of the hull structure. Seakeeper recommends using a structural adhesive with a lap shear strength of 2000 psi (13.8 MPa) or greater. Careful consideration should be exercised by the installer while selecting the appropriate adhesive. Compatibility with the Seakeeper’s cast aluminum A356- T6 saddles, hull structure and pot life are three important factors to consider. Proper surface preparation in accordance with adhesive manufacturer’s recommendations prior to installation is very important.