{"id":20539,"date":"2025-11-12T14:24:12","date_gmt":"2025-11-12T14:24:12","guid":{"rendered":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-9-installation-manual-90222-11-s-n-9-233-4900-to-current-copy\/mechanical-installation\/saddle-installation\/fiberglass-hull-preparation\/"},"modified":"2025-11-12T15:19:14","modified_gmt":"2025-11-12T15:19:14","slug":"fiberglass-hull-preparation","status":"publish","type":"page","link":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-9-installation-manual-90222-12-s-n-9-254-5731-to-current\/mechanical-installation\/saddle-installation\/fiberglass-hull-preparation\/","title":{"rendered":"2.5.3 Hull Preparation"},"content":{"rendered":"\n
    \n
  1. Position installation fixture (Figure 17) on hull girders noting recommended clearances for maintenance from Figure 3 & 4 (in Section 2.2: Selection of Installation Location). Check that the screws fastening the saddles to the installation fixture are tight (Fig. 18).<\/li>\n<\/ol>\n\n\n
    \n
    \"\"
    Figure 17 \u2013<\/strong> Installing Fixture on Hull<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n
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    1. Mask hull area (Fig. 18) around foundation saddles for easy clean-up and to create outline of surface area to receive adhesive as (Fig. 17). Ensure that the bond gap is within Seakeeper<\/span><\/span>\u2019s recommended thickness, or 3 mm if using Plexus MA590.<\/li>\n<\/ol>\n\n\n
      \n
      \"\"
      Figure 18 \u2013 <\/strong>Masking Perimeter of Saddles<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n
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      1. Raise fixture clear of foundation. Check all four mounting areas are co-planar to within 0.13 in. (3 mm) to each other, as well as parallel to the water line plane, as shown in Figure 17 and 19.<\/li>\n<\/ol>\n\n\n
        \n
        \"\"
        Figure 19 \u2013<\/strong><\/em><\/strong> Coplanar Properties of Foundation<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n
          \n
        1. Thoroughly clean with alcohol or acetone all areas of girders to be bonded to remove any contaminates. Use new paper towels for cleaning, not shop rags.<\/li>\n\n\n\n
        2. Remove any paint or gel-coat from bond surfaces so that adhesive will bond directly to laminate fibers and resin as shown in Figure 19.<\/li>\n\n\n\n
        3. Thoroughly sand girder bond surfaces with 80 grit sandpaper. (IMPORTANT \u2013 BOND STRENGTH MAY BE REDUCED IF THIS STEP IS SKIPPED.)<\/strong><\/li>\n\n\n\n
        4. Wipe surfaces clean from dust with alcohol or acetone using new paper towels, not shop rags.<\/li>\n\n\n\n
        5. Re-position installation fixture on girders and double-check that the adhesive gap is within the adhesive manufacturer\u2019s maximum recommended thickness. Seakeeper<\/span><\/span> recommends a maximum gap of 3 mm if using Plexus MA590.<\/li>\n<\/ol>\n\n\n\n

          Note: if bonding saddles to a metal structure, <\/mark>follow adhesive manufacturer instructions for metal substrates.<\/mark><\/p>\n","protected":false},"excerpt":{"rendered":"

          Note: if bonding saddles to a metal structure, follow adhesive manufacturer instructions for metal substrates.<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":20533,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"manual":[363],"model":[],"document_type":[],"hidden":[],"class_list":["post-20539","page","type-page","status-publish","hentry","manual-seakeeper-9-installation-manual-90222-12-s-n-9-254-5731-to-current"],"acf":[],"_links":{"self":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20539","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/comments?post=20539"}],"version-history":[{"count":3,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20539\/revisions"}],"predecessor-version":[{"id":20606,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20539\/revisions\/20606"}],"up":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20533"}],"wp:attachment":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/media?parent=20539"}],"wp:term":[{"taxonomy":"manual","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/manual?post=20539"},{"taxonomy":"model","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/model?post=20539"},{"taxonomy":"document_type","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/document_type?post=20539"},{"taxonomy":"hidden","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/hidden?post=20539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}