TM 55-1945-205-24-20284 00 20284 00a.Cut out damaged area with a power jig using a fine tooth, metal blade.b.Using a grinder or disc sander, grind and sand the cutout edges to a minimum 20º included angle.c.Bevel the outside and inside back a distance equal to six times 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. AFTER PREPARATIONEDGES CUT5. REPAIR COMPLETEBACKING PLATESEPARATING FILM2. DAMAGED MATERIAL CUT AWAY4. ONE SIDE REPAIR COMPLETEREPLACEMENT GLASSBACKING PLATESEPARATING FILMBACKING PLATEEDGES BEVELLED(6 TIMES LAMINATE THICKNESS - EACH SIDE)
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