密封剂和密封SealantsandSealing.doc

膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂蒅虿膀蒁蚇袄膆蒀蝿螇肂葿葿羂羈葿薁螅芇蒈蚃羁膃薇螆螄聿薆蒅罿羅膂薈螂袁膂螀羇芀膁蒀袀膆膀薂肆肂腿蚄袈羈膈螇蚁芆膇蒆袇膂芇蕿蚀肈芆蚁袅羄芅莁蚈羀芄薃羃艿芃蚅螆膅节螇羂肁芁蒇螄羇芁蕿羀袃莀蚂螃膁荿莁羈肇莈蒄螁肃莇蚆肆罿莆螈衿芈莅蒈蚂膄莅薀袈肀莄蚃蚀羆蒃莂袆袂蒂薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄膅螃肁芃膄蒃袃腿膃薅聿肅节蚈袂羁芁螀蚄艿芁蒀袀芅芀蚂蚃膁艿螄羈肇芈蒄螁羃芇薆羇节芆蚈蝿膈莆螁羅肄莅蒀螈羀莄薃羃袆莃螅螆芅莂蒅肁膁莁薇袄肇莀虿肀羃莀螂袃芁葿蒁蚅膇蒈薄袁肃蒇蚆蚄罿蒆蒆衿羅蒅薈螂芄蒄蚀羇膀蒄螂螀肆蒃蒂羆羂薂薄蝿芀薁蚇羄膆薀蝿螇膂蕿蕿肂肈膆蚁袅羄 Sealants and SealingINTRODUCTIONGENERALSealing is a vital process in the manufacture of todays commercial aircraft. Sealants are used to contain fuel, maintain cabin pressure, reduce fire hazards, exclude moisture, prevent corrosion, and fill gaps and smooth discontinuities on the aircraft exterior. All of these sealing functions are important and affect the performance of the aircraft. For example, fuel tank sealing is critical because fuel leakage is a safety item that can result in grounding the aircraft until the problem is corrected. Sealing for corrosion prevention must be done properly or in-service problems requiring extensive maintenance may occur.These considerations indicate how important proper sealing is. It directly affects the quality and reliability of aircraft.DEFINITION OF SEALINGSealing is a process that confines liquids and gases within a given area or prevents them from entering areas from which they must be excluded. Sealing is accomplished by closing all structural passages that these fluids can penetrate. The material used to seal these passages is applied as a wet, flowable paste. After a period of time, the sealant “cures” to form a rubbery solid that adheres firmly to the surfaces it contacts.LEVELS OF SEALINGThe level of sealing required for a given area is defined by the applicable construction and assembly drawings and is dictated by engineering considerations. The four levels of sealing are absolute, extensive, intermediate, and limited. The absolute level of sealing represents the most demanding requirements, and the limited level, the least. Precise definition of which types of structure must be sealed for each level of sealing are found in A/C manufactures general sealing process specifications. (See Boeing BAC 5000, Canadian MPS 142-4 and DeHavilland PPS 21.21 etc.)FUNCTIONS OF SEALSFuel AreasIn integral fuel tanks, seals must contain fuel for the life of the airplane under various conditions of temperature, pressure, and structural loading.Pressurised AreasSeals maintain pressure at a predetermined minimum level under all flight conditions.Environmental AreasSeals on exterior surfaces prevent water and other fluids from entering and also function as aerodynamic smoothers.Corrosion Areas Seals protect the structure by preventing entry of corrosive fluids.Electrical AreasSeals provide protection for electrical components.Firewall AreasSeals prevent spread of flames beyond the firewall until fire can be extinguished.Acid AreasSeals protect structure from attack by battery acids.ENVIRONMENTSSealants must maintain adhesion to the structure and have sufficient flexibility to function effectively under a variety of environmental and stress conditions: Differential pressures may vary from small negative values to positive values of approximately 11 lb/in2. The operating temperature range is approximately -65F to 160F (400F in some localized high-temperature areas). Structural loads during flight and ground operations cause deflections, which the sealant must be able to withstand at all operating temperatures.TYPES OF SEALSFillet SealsFillet seals are applied at the edges of structural joints. They consist of beads of sealant that must adhere firmly to the structure on both sides of the seam being sealed and must conform to the dimensional requirements of the process specification. Fillet seals are used where maximum protection from fluid leakage is required, such as in fuel and pressure areas.Injection Seals Injection seals are applied to fill channels and holes that occur as a result of the structural design. Quite often injections are required to continue or to back up a fillet seal.Faying Surface SealsFaying surface seals consist of a layer of sealant sandwiched between two fastened mating surfaces. These seals are used primarily to prevent corrosion of aircraft structure and to facilitate leak tracing in the fuel tank.Prepack SealsPrepack seals are installed prior to assembly to fill structural cavities that are enclosed after assembly and cannot be properly injected.Brush Coat SealsBrush-coat seals, as the name implies, are formed by brushing the sealant into place. The sealant is a low-viscosity material that is easily applied in this manner. The method is principally used in