Selection of Installation Method

The Seakeeper 16/18 can be affixed to the hull structure using two methods:
1. Bolt-In Installation or
2. Bond-In (Saddle) Installation.

See figures below.

Option 1 would be applied when a metal structure or metal reinforce fiberglass stringer is available for attachment. The foundation would fasten directly to the hull structure using isolation gaskets for metal-to-metal contacts and (16) M14X2.0 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 12.9-in (327 mm) long x 4.9-in (125 mm) wide x 6.7-in (170 mm) height 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. Recommended adhesives can be found in Seakeeper Technical Bulletin 90382 – Adhesive Recommendations.