Group: Administrator
Level:
Posts: 4873
Joined: 1/28/2015
IP-Address: saved
|
Wet out scarfs on the ends of adjoining sheets. 3. Apply a coat of thickened epoxy/406 mixture to the bonding surfaces of the frame and the scarf of the previous sheet. 4. Lay the sheet in position over the frames. Align the scarf joint to avoid overlapping.Clamp the sheet temporarily with drywall screws or staples. Use enough fasteners to clamp the sheet evenly. The epoxy mixture should squeeze out of the joints,wpc anti-mildew decking manufacturer Salvador assuring good adhesive contact. Station someone inside to clean excess epoxy at the frames and joints. The excess can be scraped clean or shaped into a fillet before it begins to cure. 6. Repeat the process with the remaining sheets. Allow the joints to cure thoroughly before removing temporary fasteners.
7. Sand the joints and fair the surface before adding another layer of plywood, fiberglassing (Section 8.4.5) or finishing (Section 7). 5.3.4 Applying plywood over existing skins When laminating an additional layer of plywood over an existing hull or deck, it's not necessary to scarf joints or place joints directly over frames because of the large bonding area. Restore existing plywood to sound condition before laminating new sheets over it. Laminate new plywood over an existing deck or hull as follows: 1. Re-bond delaminated layers of plywood, after drying thoroughly. Drill a pattern of 1 8" holes in the delaminated area.anti-fungus swimming pool decking Use a syringe to inject a slightly thickened epoxy/406 mixture in all of the holes to reach all of the delaminated area. Use staples or screws to clamp the layers together until the epoxy cures. When the epoxy has cured thoroughly, proceed with Step 2. 2. Sand the surface fair to clean, bare wood. Remove all old finishes and contaminants. 3. Open existing joints with a scraper, saw or router and fill the joints with epoxy.
Repair with fiberglass tape, if necessary, as suggested in Section 5.3.1. 4. Cut out severely damaged areas and scarf in new plywood, if necessary, as suggested in Section 5.3.2. 5. Plan the layout of the new plywood sheets to avoid new joints falling over existing joints. 6. Apply an epoxy/406 mixture to both bonding surfaces with a roller. Thicken the mixture to a catsup consistency to allow some penetration and still bridge any gaps between the surfaces. If the surface is rough or uneven, thicken the epoxy mixture to a mayonnaise consistency and apply with a notched spreader. 7. Clamp the sheet in position with an even pattern of temporary screws or staples. Clean up excess epoxy at the joints. Repeat the procedure with each sheet.antislip composite decking for park Allow the epoxy to cure thoroughly before removing temporary fasteners. 8. Sand the surface fair before final finishing. 5.4 Molded or laminated veneer repairs Another option for skin covering uses strips of thin veneer instead of sheets of plywood. Laminated boats were and are being built by gluing layers of thin veneers together over curved forms, in effect building a sheet of plywood in the shape of a boat. This technique has produced lightweight rigid hulls that aren't limited to the flat surfaces and hard chines of plywood boats.
|
Search 
Calendar 
Gallery
Auctions 
Global 
Top
Members 
Stats
Chat (0) new 
send Password 
Register
