TM 55-1945-205-24-20285 00 20285 00a.Cut out damaged area with a power jig using a fine tooth, metal blade.b.Using a grinder or suitable disc sander, grind and sand the cutout edges to a minimum 20º included angle.c.Bevel outside and inside back a distance equal to 12 times the laminate thickness for a feathered edge centered in the middle of laminate.WARNING2.Prepare repair patch for application.NOTEThe thickness of the repair patch and components to be used depends of the portion of the hull being repaired.The following steps are typical for the application of a fiberglass patch.Table 1. Lay-Out Details.AREANOTESLAY-OUTHULL1Gelcoat1 oz. Mat1 UnitCoremat1 Unit1. BEFORE3. PREPARATION COMPLETEEDGES CUTBACKING PLATESEPARATING FILM2. DAMAGED MATERIAL CUT AWAY4. CORE REPLACEDSTRUCTURAL COREGLASS LAMINATESYNTACTIC FOAMTEMPORARY BLOCKSREPLACEMENTCORE5. ONE SIDE - REPAIR COMPLETEREPLACEMENT GLASS6. COMPLETED REPAIREDGES BEVELLED(12 TIMES GLASSLAMINATE THICKNESS)
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