godspede619
Seaman
- Joined
- Aug 26, 2008
- Messages
- 54
So heres whats going on. I have a 89 bayliner trophy with a two crack on a speed strake. I have never done a fiberglass repair but feel capable. I have run through the search engine on iboats and youtube and still have a few questions. Ill go through my steps and insert the questions accordingly.
This repair must be made from the outside and im not too concerned about appearance.
1. completely remove all damaged fiberglass with a jigsaw or dremel.
2. measure thickness of fiberglass and measure a 12:1 ratio away from cut hole. approx. a 3-4 inch
3. using a grinder with a 50-80 grit wheel bevel the FG from your 3-4 inch outline toward the cut out section.
Im planning on using 1708 biaxle as my fibler glass and either a quality poly or epoxy. Can i use some mat wet with resin to stuff into the hole to get some backing before i use the biaxle? how many layers of biaxle do i need to use? do i sand between layers or apply wet?
Some posters say to use small pieces of biaxle and work to larger and some say the opposite large to small.
after glassed ima sand area and just paint and not too worried about gel coat. just lookin on some clarification in a few areas before i start. i completely understand that prep is key to the whole job. If any one know a website or a book that gives a step by step it would help with the process.
(and yes someone has tried to repair this crack before)
This repair must be made from the outside and im not too concerned about appearance.
1. completely remove all damaged fiberglass with a jigsaw or dremel.
2. measure thickness of fiberglass and measure a 12:1 ratio away from cut hole. approx. a 3-4 inch
3. using a grinder with a 50-80 grit wheel bevel the FG from your 3-4 inch outline toward the cut out section.
Im planning on using 1708 biaxle as my fibler glass and either a quality poly or epoxy. Can i use some mat wet with resin to stuff into the hole to get some backing before i use the biaxle? how many layers of biaxle do i need to use? do i sand between layers or apply wet?
Some posters say to use small pieces of biaxle and work to larger and some say the opposite large to small.
after glassed ima sand area and just paint and not too worried about gel coat. just lookin on some clarification in a few areas before i start. i completely understand that prep is key to the whole job. If any one know a website or a book that gives a step by step it would help with the process.
(and yes someone has tried to repair this crack before)