玻璃钢修补通用工艺

1 青岛北海船舶重工有限责任公司游艇厂青岛北海船舶重工有限责任公司游艇厂 BOATBUILDINGBOATBUILDING YARD YARD QINGDAOQINGDAO BEIHAIBEIHAI SHIPBUILDINGSHIPBUILDING HEAVYHEAVY INDUSTRYINDUSTRY CO CO LTDLTD 青青岛经济岛经济技技术术开开发发区漓江区漓江东东路路 369 369 369369 LijiangLijiang EastEast Road Road EconomicEconomic TechnologyTechnology DevelopmentDevelopment Zone Zone QingdaoQingdao TEL TEL 86 86 532532 8675685286756852 FAX FAX 86 86 532532 86756869 1186756869 11 E mail bhlifeboat E mail bhlifeboat Repair Procedure for GRP Lifeboat 1 Repair materials Gelcoat Topcoat resin the color is the same as that of the original surface Fire retardant polyester resin E glass chopped strand mat 300g m2 450g m2 E glass woven rovings 600g m2 2 Repair Method 2 1 Inspection for damage Grind the damaged areas and observe the damage condition If the damage only appear in the gelcoat layer repair method is referring to method 1 and if not repair method is referring to method 2 2 2 Repair method 1 1 When the damaged gelcoat layer has been removed clean up the surface then apply new gelcoat resin and keep the thickness about 0 3 0 4mm 2 After the gelcoat resin cured grind the surface and clear away the powders Then apply topcoat resin again Make the topcoat surface a bit higher than its close by areas 3 When the topcoat resin has completely cured then grind the surface by use of 400 600 800 and 1000 water proof sand paper respectively Polish the repair surface with woolen wheel lastly 2 3 Repair method 2 1 Grind the damaged areas to form a sloped taper pls refer to the following figure and clean up the surface 2 Laminate the GRP layers by using chopped strand mat of 450g m2 and woven rovings of 600g m2 alternately till the new laminating surface is a 2 little lower than its close by areas During the laminating process the mats and rovings should be cut layer by layer according to size of the taper And bear in mind that the last layer should be the mat of 300g m2 3 When the repair laminating layers has completely cured grind the surface and clear away the powders Then apply gelcoat topcoat resin to the repair areas by use of the same metho