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Question ,,,, something I just never did ..
In my former life as a sailboat Captain [ that mean's I paid the bill for
the loan ] I never had to replace, rebed, or reattache, or put on new ........... hardware. Things such as cleats, winches, etc. Could someone tell me the correct way to go about doing this with a fiberglass boat. Say, a cleat. I understand that there must be a screw, or whatever that goes into the deck to hold the cleat in place,,,,, what about sealing the deck. And, on the inside of the deck [ below ] is there a backing plate that the fastener of the cleat goes down through? What type of bedding is proper. Just a quick go through. Thanks ,,, |
Question ,,,, something I just never did ..
"Thomas Wentworth" wrote in message news:eEvvf.4$%W3.0@trndny07... In my former life as a sailboat Captain [ that mean's I paid the bill for the loan ] I never had to replace, rebed, or reattache, or put on new .......... hardware. Things such as cleats, winches, etc. Could someone tell me the correct way to go about doing this with a fiberglass boat. Say, a cleat. I understand that there must be a screw, or whatever that goes into the deck to hold the cleat in place. Better use S/S bolts w/large washers. ,,,,, what about sealing the deck. Seal with 3M 5200 or Sikaflex And, on the inside of the deck [ below ] is there a backing plate that the fastener of the cleat goes down through? Yes, a wood backing plate works well. |
Question ,,,, something I just never did ..
I like 3/4 plywood with round corners and bedded with thickened epoxy.
"Thomas Wentworth" wrote in message news:eEvvf.4$%W3.0@trndny07... In my former life as a sailboat Captain [ that mean's I paid the bill for the loan ] I never had to replace, rebed, or reattache, or put on new .......... hardware. Things such as cleats, winches, etc. Could someone tell me the correct way to go about doing this with a fiberglass boat. Say, a cleat. I understand that there must be a screw, or whatever that goes into the deck to hold the cleat in place,,,,, what about sealing the deck. And, on the inside of the deck [ below ] is there a backing plate that the fastener of the cleat goes down through? What type of bedding is proper. Just a quick go through. Thanks ,,, |
Question ,,,, something I just never did ..
The way I am doing it, right or wrong:
Locate your bolt positions and drill through the deck. Set the fitting and tape around it with masking tape. Remove fitting and apply a bead of 4200 around the perimeter of the unmasked area and around the bolt holes. (5200 is to hard to remove without damaging the deck down the road.) Through bolt the fitting with a backing plate at least as large as the base of the fitting. (I am using 1/4" 5083 aluminum because I have a lot of it and it is easy to cut and drill.) Tighten down the bolts just a turn or two past finger tight. Remove the masking tape, clean up and let the 4200 cure for a day. Tighten down the bolts fully so that the cured 4200 is in compression. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com "Thomas Wentworth" wrote in message news:eEvvf.4$%W3.0@trndny07... In my former life as a sailboat Captain [ that mean's I paid the bill for the loan ] I never had to replace, rebed, or reattache, or put on new .......... hardware. Things such as cleats, winches, etc. Could someone tell me the correct way to go about doing this with a fiberglass boat. Say, a cleat. I understand that there must be a screw, or whatever that goes into the deck to hold the cleat in place,,,,, what about sealing the deck. And, on the inside of the deck [ below ] is there a backing plate that the fastener of the cleat goes down through? What type of bedding is proper. Just a quick go through. Thanks ,,, |
Question ,,,, something I just never did ..
What about the Gougeon Brothers' recommendation that the deck core be sealed
by boring the hole oversize, filling with thickened epoxy, and then drilling the proper size hole in the epoxy; before the bedding and backing? Roger http://home.insightbb.com/~derbyrm "Glenn Ashmore" wrote in message news:6Sxvf.2743$Dh.1119@dukeread04... The way I am doing it, right or wrong: Locate your bolt positions and drill through the deck. Set the fitting and tape around it with masking tape. Remove fitting and apply a bead of 4200 around the perimeter of the unmasked area and around the bolt holes. (5200 is to hard to remove without damaging the deck down the road.) Through bolt the fitting with a backing plate at least as large as the base of the fitting. (I am using 1/4" 5083 aluminum because I have a lot of it and it is easy to cut and drill.) Tighten down the bolts just a turn or two past finger tight. Remove the masking tape, clean up and let the 4200 cure for a day. Tighten down the bolts fully so that the cured 4200 is in compression. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com "Thomas Wentworth" wrote in message news:eEvvf.4$%W3.0@trndny07... In my former life as a sailboat Captain [ that mean's I paid the bill for the loan ] I never had to replace, rebed, or reattache, or put on new .......... hardware. Things such as cleats, winches, etc. Could someone tell me the correct way to go about doing this with a fiberglass boat. Say, a cleat. I understand that there must be a screw, or whatever that goes into the deck to hold the cleat in place,,,,, what about sealing the deck. And, on the inside of the deck [ below ] is there a backing plate that the fastener of the cleat goes down through? What type of bedding is proper. Just a quick go through. Thanks ,,, |
Question ,,,, something I just never did ..
derbyrm wrote:
What about the Gougeon Brothers' recommendation that the deck core be sealed by boring the hole oversize, filling with thickened epoxy, and then drilling the proper size hole in the epoxy; before the bedding and backing? If you do this, you should try to make the first hole only slightly oversized; if you drill away too much of the skin laminations then your deck fitting will be attached to epoxy filler rather than the deck. A better way is to use a small angled tool to dig out the core from around the bolt holes, then fill between the skins with thickened epoxy. And use hi-density stuff that will take the compression of the mounting bolts. Alternately, you can dish out the skins and lay up some new cloth over the sealing filler at the bolt holes. Fresh Breezes- Doug King |
Question ,,,, something I just never did ..
It depends on the load on the fitting. Very lightly loaded items get
screwed to the deck with a sealant (NEVER 5200!). The most heavily loaded items like winches and clutches and mooring cleats get the treatment in which the holes are drilled 2x oversize, and filled with cabosil /epoxy putty. When they've cured, they're sanded flush and drilled again the size of the bolt. Backing plates can be aluminum, G-10 or plywood with fender washers.The hardware and backing plate are bedded. I recollect that in the West System website (or maybe in epoxyworks) is a more structured analysis of what's appropriate for a given situation. "derbyrm" wrote in message news:7Vzvf.682130$x96.380410@attbi_s72... What about the Gougeon Brothers' recommendation that the deck core be sealed by boring the hole oversize, filling with thickened epoxy, and then drilling the proper size hole in the epoxy; before the bedding and backing? Roger http://home.insightbb.com/~derbyrm "Glenn Ashmore" wrote in message news:6Sxvf.2743$Dh.1119@dukeread04... The way I am doing it, right or wrong: Locate your bolt positions and drill through the deck. Set the fitting and tape around it with masking tape. Remove fitting and apply a bead of 4200 around the perimeter of the unmasked area and around the bolt holes. (5200 is to hard to remove without damaging the deck down the road.) Through bolt the fitting with a backing plate at least as large as the base of the fitting. (I am using 1/4" 5083 aluminum because I have a lot of it and it is easy to cut and drill.) Tighten down the bolts just a turn or two past finger tight. Remove the masking tape, clean up and let the 4200 cure for a day. Tighten down the bolts fully so that the cured 4200 is in compression. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com "Thomas Wentworth" wrote in message news:eEvvf.4$%W3.0@trndny07... In my former life as a sailboat Captain [ that mean's I paid the bill for the loan ] I never had to replace, rebed, or reattache, or put on new .......... hardware. Things such as cleats, winches, etc. Could someone tell me the correct way to go about doing this with a fiberglass boat. Say, a cleat. I understand that there must be a screw, or whatever that goes into the deck to hold the cleat in place,,,,, what about sealing the deck. And, on the inside of the deck [ below ] is there a backing plate that the fastener of the cleat goes down through? What type of bedding is proper. Just a quick go through. Thanks ,,, |
Question ,,,, something I just never did ..
Doug,
This is a very serious problem if water should get in between laminations. Although my boat is steel, the teak deck margin planks extend over the 12" steel deck margin plate which extends all the way around the boat. I had water leak through the cleat bolts between the teak and steel margins and cause corrosion. The repair caused the destruction of the margin planks (5200) and was very expensive and time consuming to repair. My solution was to use plastic tubes that extend from the backing plates to the teak surface caulked in place with polysulphide. Then use bolts as studs from the backing plates through the tubes also thoroughly caulked with polysulphide at the topside and the cleats then mount with nuts and washers. Leaks solved with insurance. Steve "DSK" wrote in message ... derbyrm wrote: What about the Gougeon Brothers' recommendation that the deck core be sealed by boring the hole oversize, filling with thickened epoxy, and then drilling the proper size hole in the epoxy; before the bedding and backing? If you do this, you should try to make the first hole only slightly oversized; if you drill away too much of the skin laminations then your deck fitting will be attached to epoxy filler rather than the deck. A better way is to use a small angled tool to dig out the core from around the bolt holes, then fill between the skins with thickened epoxy. And use hi-density stuff that will take the compression of the mounting bolts. Alternately, you can dish out the skins and lay up some new cloth over the sealing filler at the bolt holes. Fresh Breezes- Doug King |
Question ,,,, something I just never did ..
That's a good solution. If the stuff in the middle is either highly
compressible (like foam) or highly water-sensitive(like steel), then G-10 (fiberglass-epoxy) tubes are a very good thing. Has anyone found a lower-cost supplier if this stuff than McMaster-Carr? "Steve Lusardi" wrote in message ... Doug, This is a very serious problem if water should get in between laminations. Although my boat is steel, the teak deck margin planks extend over the 12" steel deck margin plate which extends all the way around the boat. I had water leak through the cleat bolts between the teak and steel margins and cause corrosion. The repair caused the destruction of the margin planks (5200) and was very expensive and time consuming to repair. My solution was to use plastic tubes that extend from the backing plates to the teak surface caulked in place with polysulphide. Then use bolts as studs from the backing plates through the tubes also thoroughly caulked with polysulphide at the topside and the cleats then mount with nuts and washers. Leaks solved with insurance. Steve "DSK" wrote in message ... derbyrm wrote: What about the Gougeon Brothers' recommendation that the deck core be sealed by boring the hole oversize, filling with thickened epoxy, and then drilling the proper size hole in the epoxy; before the bedding and backing? If you do this, you should try to make the first hole only slightly oversized; if you drill away too much of the skin laminations then your deck fitting will be attached to epoxy filler rather than the deck. A better way is to use a small angled tool to dig out the core from around the bolt holes, then fill between the skins with thickened epoxy. And use hi-density stuff that will take the compression of the mounting bolts. Alternately, you can dish out the skins and lay up some new cloth over the sealing filler at the bolt holes. Fresh Breezes- Doug King |
Question ,,,, something I just never did ..
I would think you could fabricate an acceptable tube by using a dowel
as a form. Once the epoxy is set, drill out the wood. But I don't know the details of G-10 so I'm just guessing. "Jim Conlin" writes: That's a good solution. If the stuff in the middle is either highly compressible (like foam) or highly water-sensitive(like steel), then G-10 (fiberglass-epoxy) tubes are a very good thing. Has anyone found a lower-cost supplier if this stuff than McMaster-Carr? -- |
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