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#1
posted to rec.boats.building
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Checking a hull's integrity.
OK, I posted this over on rec.boats, but there's to much politi-bs to
wade through, event though some people will give me some good advice. I have a 1977 Marquis 23 ft'r which I'm wanting to sound out to make a good river cruise this late summer/early fall, and I'm asking all kinds of questions about GPS, radios charts etc. but that's beside the point. So here's my question to those experienced in hull and fiberglass repair: OK, in my never ending quest for info, I thought I'd look at my big boat's hull. I haven't' found any blisters, but the hull has had something repaired on it in times past like to cover a gouge, or hard nicks. Nothing big, but some type of a tanish-colored 'epoxy repair' which has been applied to a couple spots on the port side, which are anywhere from the size of your thumb print to no larger than a "Kennedy half". I've tapped around on the hull from about bow to stern and all sounds solid with no dead thuds and nothing spongy. So I feel the integrity of the fiberglass is in good shape. I looked down the keel of the hull from the bow, and there have been several nicks that though seem to be on the surface, I feel they need to have some attention payed to them . I didn't see any sign of fiberglass core actually showing through, however there were some nicks that have gone deep enough to look like they've gone through the gell coat, to the green underlying fiberglass resin. I don't think that the boat has been abused, but sometimes hitting a good stick can cause such nicks, but this looks like it's tapped against some hard heavy rocks like what you might find lining a dock loading ramp or at a spill way. I don't think that water has infiltrated the fiberglass or at least nothing to cause blistering, but I am concerned a bit about it, that it needs some repair. One guy who likes to think with his mouth and not his mind looked at the nicks and suggested that I dab some fingernail polish on it. For pete's sake I know there's lots of fiberglass repair products out there but seeing I don't know much about it, I'd like somebody to recommend to me the choicest products and repair procedures. I don't know much about it, but am willing to try. Thanks for the consideration. Tim |
#2
posted to rec.boats.building
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Checking a hull's integrity.
If that's all it is, Nick, you go on and have a good trip.
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#3
posted to rec.boats.building
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Checking a hull's integrity.
"Tim" wrote in message ... OK, I posted this over on rec.boats, but there's to much politi-bs to wade through, event though some people will give me some good advice. I have a 1977 Marquis 23 ft'r which I'm wanting to sound out to make a good river cruise this late summer/early fall, and I'm asking all kinds of questions about GPS, radios charts etc. but that's beside the point. So here's my question to those experienced in hull and fiberglass repair: OK, in my never ending quest for info, I thought I'd look at my big boat's hull. I haven't' found any blisters, but the hull has had something repaired on it in times past like to cover a gouge, or hard nicks. Nothing big, but some type of a tanish-colored 'epoxy repair' which has been applied to a couple spots on the port side, which are anywhere from the size of your thumb print to no larger than a "Kennedy half". I've tapped around on the hull from about bow to stern and all sounds solid with no dead thuds and nothing spongy. So I feel the integrity of the fiberglass is in good shape. I looked down the keel of the hull from the bow, and there have been several nicks that though seem to be on the surface, I feel they need to have some attention payed to them . I didn't see any sign of fiberglass core actually showing through, however there were some nicks that have gone deep enough to look like they've gone through the gell coat, to the green underlying fiberglass resin. I don't think that the boat has been abused, but sometimes hitting a good stick can cause such nicks, but this looks like it's tapped against some hard heavy rocks like what you might find lining a dock loading ramp or at a spill way. I don't think that water has infiltrated the fiberglass or at least nothing to cause blistering, but I am concerned a bit about it, that it needs some repair. One guy who likes to think with his mouth and not his mind looked at the nicks and suggested that I dab some fingernail polish on it. For pete's sake I know there's lots of fiberglass repair products out there but seeing I don't know much about it, I'd like somebody to recommend to me the choicest products and repair procedures. I don't know much about it, but am willing to try. Thanks for the consideration. Tim Hi Tim, I like Marine Tex (http://www.marinetex.com/marinetexepoxyputty.html) for small jobs. Make sure the area is clean and dry. Wipe down with acetone. For the larger areas, if the surface is real smooth might sand (roughen) with a heavy grit to help the mechanical bond. |
#4
posted to rec.boats.building
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Checking a hull's integrity.
On Mon, 22 Mar 2010 19:33:17 -0700 (PDT), Tim
wrote: OK, I posted this over on rec.boats, but there's to much politi-bs to wade through, event though some people will give me some good advice. I have a 1977 Marquis 23 ft'r which I'm wanting to sound out to make a good river cruise this late summer/early fall, and I'm asking all kinds of questions about GPS, radios charts etc. but that's beside the point. So here's my question to those experienced in hull and fiberglass repair: OK, in my never ending quest for info, I thought I'd look at my big boat's hull. I haven't' found any blisters, but the hull has had something repaired on it in times past like to cover a gouge, or hard nicks. Nothing big, but some type of a tanish-colored 'epoxy repair' which has been applied to a couple spots on the port side, which are anywhere from the size of your thumb print to no larger than a "Kennedy half". I've tapped around on the hull from about bow to stern and all sounds solid with no dead thuds and nothing spongy. So I feel the integrity of the fiberglass is in good shape. I looked down the keel of the hull from the bow, and there have been several nicks that though seem to be on the surface, I feel they need to have some attention payed to them . I didn't see any sign of fiberglass core actually showing through, however there were some nicks that have gone deep enough to look like they've gone through the gell coat, to the green underlying fiberglass resin. I don't think that the boat has been abused, but sometimes hitting a good stick can cause such nicks, but this looks like it's tapped against some hard heavy rocks like what you might find lining a dock loading ramp or at a spill way. I don't think that water has infiltrated the fiberglass or at least nothing to cause blistering, but I am concerned a bit about it, that it needs some repair. One guy who likes to think with his mouth and not his mind looked at the nicks and suggested that I dab some fingernail polish on it. For pete's sake I know there's lots of fiberglass repair products out there but seeing I don't know much about it, I'd like somebody to recommend to me the choicest products and repair procedures. I don't know much about it, but am willing to try. Thanks for the consideration. Tim I just went through a fairly extensive blister repair and basically if you use epoxy and fill gouges with chopped mat and epoxy the repair will likely be stronger then the original hull, assuming that the hull is polyester. Feather the gouge out and pack it with epoxy saturated mat. If you are worried about osmosis, after you have made your repairs grind the entire underwater area down to a good solid surface and roll on two coats of epoxy. Put the first coat on and let it set up until it isn't sticky but you can still mark it with your finger and then roll on the second coat. After the second coat sets up, but still not hard, roll on a coat of epoxy high build primer and leave it for a day or so. If you don't wait long enough after the first coat of epoxy the second coat will be very heavy as you have to slop it onto a sticky surface and if you paint the primer too soon it will craze - tiny cracks all over the place. The reason for all this hoopdi-do is that if you let the usual epoxy set hard it will have an oily film on it called "amine blush" and then you have to wash the whole thing clean, let it dry, wipe it with thinner, and repaint. Finish sand and two coats of two part polyurethane. You'll be good for ten years or so.... However it is more costly then polyester and barn paint. Cheers, Bruce |
#5
posted to rec.boats.building
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Checking a hull's integrity.
On Mar 23, 7:42*am, Bruce wrote:
On Mon, 22 Mar 2010 19:33:17 -0700 (PDT), Tim wrote: OK, I posted this over on rec.boats, but there's to much politi-bs to wade through, event though some people will give me some good advice. I have a 1977 Marquis 23 ft'r which I'm wanting to sound out to make a good river cruise this late summer/early fall, and I'm asking all kinds of questions about GPS, radios charts etc. but that's beside the point. So here's my question to those experienced in hull and fiberglass repair: OK, in my never ending quest for info, I thought I'd look at my big boat's hull. *I haven't' found any blisters, but the hull has had something repaired on it in times past like to cover a gouge, or *hard nicks. *Nothing big, but some type of a tanish-colored *'epoxy repair' which has been applied to a couple spots on the port side, which are anywhere from the size of your thumb print to no larger than a "Kennedy half". I've tapped around on the hull from about bow to stern and all sounds solid with no dead thuds and nothing spongy. So I feel the integrity of the fiberglass is in good shape. I looked down the keel of the hull from the bow, and there have been several nicks that though seem to be on the surface, I feel they need to have some attention payed to them . I didn't see any sign of fiberglass core actually showing through, however there were some nicks that have gone deep enough to look like they've gone through the gell coat, to the green underlying fiberglass resin. I don't think that the boat has been abused, but sometimes hitting a good stick can cause such nicks, but this looks like it's tapped against some hard heavy rocks like what you might find lining a dock loading ramp or at a spill way. I don't think that water has infiltrated the fiberglass or at least nothing to cause blistering, but I am concerned a bit about it, that it needs some repair. One guy who likes to think with his mouth and not his mind looked at the nicks and suggested that I dab some fingernail polish on it. For pete's sake I know there's lots of fiberglass repair products out there but seeing I don't know much about it, I'd like somebody to recommend to me the choicest products and repair procedures. I don't know much about it, but am willing to try. Thanks for the consideration. Tim I just went through a fairly extensive blister repair and basically if you use epoxy and fill gouges with chopped mat and epoxy the repair will likely be stronger then the original hull, assuming that the hull is polyester. Feather the gouge out and pack it with epoxy saturated mat. If you are worried about osmosis, after you have made your repairs grind the entire underwater area down to a good solid surface and roll on two coats of epoxy. Put the first coat on and let it set up until it isn't sticky but you can still mark it with your finger and then roll on the second coat. *After the second coat sets up, but still not hard, roll on a coat of epoxy high build primer and leave it for a day or so. If you don't wait long enough after the first coat of epoxy the second coat will be very heavy as you have to slop it onto a sticky surface and if you paint the primer too soon it will craze - tiny cracks all over the place. The reason for all this hoopdi-do is that if you let the usual epoxy set hard it will have an oily film on it called "amine blush" and then you have to wash the whole thing clean, let it dry, wipe it with thinner, and repaint. *Finish sand and two coats of two part polyurethane. You'll be good for ten years or so.... However it is more costly then polyester and barn paint. Cheers, Bruce- Hide quoted text - - Show quoted text - Thank for the replys. I've gotten a few good responses "over there' too! |
#6
posted to rec.boats.building
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Checking a hull's integrity.
On Mar 23, 2:29*pm, Tim wrote:
On Mar 23, 7:42*am, Bruce wrote: On Mon, 22 Mar 2010 19:33:17 -0700 (PDT), Tim wrote: OK, I posted this over on rec.boats, but there's to much politi-bs to wade through, event though some people will give me some good advice. I have a 1977 Marquis 23 ft'r which I'm wanting to sound out to make a good river cruise this late summer/early fall, and I'm asking all kinds of questions about GPS, radios charts etc. but that's beside the point. So here's my question to those experienced in hull and fiberglass repair: OK, in my never ending quest for info, I thought I'd look at my big boat's hull. *I haven't' found any blisters, but the hull has had something repaired on it in times past like to cover a gouge, or *hard nicks. *Nothing big, but some type of a tanish-colored *'epoxy repair' which has been applied to a couple spots on the port side, which are anywhere from the size of your thumb print to no larger than a "Kennedy half". I've tapped around on the hull from about bow to stern and all sounds solid with no dead thuds and nothing spongy. So I feel the integrity of the fiberglass is in good shape. I looked down the keel of the hull from the bow, and there have been several nicks that though seem to be on the surface, I feel they need to have some attention payed to them . I didn't see any sign of fiberglass core actually showing through, however there were some nicks that have gone deep enough to look like they've gone through the gell coat, to the green underlying fiberglass resin. I don't think that the boat has been abused, but sometimes hitting a good stick can cause such nicks, but this looks like it's tapped against some hard heavy rocks like what you might find lining a dock loading ramp or at a spill way. I don't think that water has infiltrated the fiberglass or at least nothing to cause blistering, but I am concerned a bit about it, that it needs some repair. One guy who likes to think with his mouth and not his mind looked at the nicks and suggested that I dab some fingernail polish on it. For pete's sake I know there's lots of fiberglass repair products out there but seeing I don't know much about it, I'd like somebody to recommend to me the choicest products and repair procedures. I don't know much about it, but am willing to try. Thanks for the consideration. Tim I just went through a fairly extensive blister repair and basically if you use epoxy and fill gouges with chopped mat and epoxy the repair will likely be stronger then the original hull, assuming that the hull is polyester. Feather the gouge out and pack it with epoxy saturated mat. If you are worried about osmosis, after you have made your repairs grind the entire underwater area down to a good solid surface and roll on two coats of epoxy. Put the first coat on and let it set up until it isn't sticky but you can still mark it with your finger and then roll on the second coat. *After the second coat sets up, but still not hard, roll on a coat of epoxy high build primer and leave it for a day or so. If you don't wait long enough after the first coat of epoxy the second coat will be very heavy as you have to slop it onto a sticky surface and if you paint the primer too soon it will craze - tiny cracks all over the place. The reason for all this hoopdi-do is that if you let the usual epoxy set hard it will have an oily film on it called "amine blush" and then you have to wash the whole thing clean, let it dry, wipe it with thinner, and repaint. *Finish sand and two coats of two part polyurethane. You'll be good for ten years or so.... However it is more costly then polyester and barn paint. Cheers, Bruce- Hide quoted text - - Show quoted text - Thank for the replys. *I've gotten a few good responses "over there' too! Before you do ANYTHING about blisters, google "Pascoe, boat surveying" and read his stuff on blisters. There are very few cases where blisters caused any problems. In almost all cases they are merely cosmetic and below the water where they cannot be seen. I agree with him that any "repairs" you make will actually make the blistering worse. Unless you can identify a real structural problem, forget em and go cruising. |
#7
posted to rec.boats.building
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Checking a hull's integrity.
On Thu, 25 Mar 2010 07:53:47 -0700 (PDT), Frogwatch
wrote: On Mar 23, 2:29*pm, Tim wrote: On Mar 23, 7:42*am, Bruce wrote: On Mon, 22 Mar 2010 19:33:17 -0700 (PDT), Tim wrote: OK, I posted this over on rec.boats, but there's to much politi-bs to wade through, event though some people will give me some good advice. I have a 1977 Marquis 23 ft'r which I'm wanting to sound out to make a good river cruise this late summer/early fall, and I'm asking all kinds of questions about GPS, radios charts etc. but that's beside the point. So here's my question to those experienced in hull and fiberglass repair: OK, in my never ending quest for info, I thought I'd look at my big boat's hull. *I haven't' found any blisters, but the hull has had something repaired on it in times past like to cover a gouge, or *hard nicks. *Nothing big, but some type of a tanish-colored *'epoxy repair' which has been applied to a couple spots on the port side, which are anywhere from the size of your thumb print to no larger than a "Kennedy half". I've tapped around on the hull from about bow to stern and all sounds solid with no dead thuds and nothing spongy. So I feel the integrity of the fiberglass is in good shape. I looked down the keel of the hull from the bow, and there have been several nicks that though seem to be on the surface, I feel they need to have some attention payed to them . I didn't see any sign of fiberglass core actually showing through, however there were some nicks that have gone deep enough to look like they've gone through the gell coat, to the green underlying fiberglass resin. I don't think that the boat has been abused, but sometimes hitting a good stick can cause such nicks, but this looks like it's tapped against some hard heavy rocks like what you might find lining a dock loading ramp or at a spill way. I don't think that water has infiltrated the fiberglass or at least nothing to cause blistering, but I am concerned a bit about it, that it needs some repair. One guy who likes to think with his mouth and not his mind looked at the nicks and suggested that I dab some fingernail polish on it. For pete's sake I know there's lots of fiberglass repair products out there but seeing I don't know much about it, I'd like somebody to recommend to me the choicest products and repair procedures. I don't know much about it, but am willing to try. Thanks for the consideration. Tim I just went through a fairly extensive blister repair and basically if you use epoxy and fill gouges with chopped mat and epoxy the repair will likely be stronger then the original hull, assuming that the hull is polyester. Feather the gouge out and pack it with epoxy saturated mat. If you are worried about osmosis, after you have made your repairs grind the entire underwater area down to a good solid surface and roll on two coats of epoxy. Put the first coat on and let it set up until it isn't sticky but you can still mark it with your finger and then roll on the second coat. *After the second coat sets up, but still not hard, roll on a coat of epoxy high build primer and leave it for a day or so. If you don't wait long enough after the first coat of epoxy the second coat will be very heavy as you have to slop it onto a sticky surface and if you paint the primer too soon it will craze - tiny cracks all over the place. The reason for all this hoopdi-do is that if you let the usual epoxy set hard it will have an oily film on it called "amine blush" and then you have to wash the whole thing clean, let it dry, wipe it with thinner, and repaint. *Finish sand and two coats of two part polyurethane. You'll be good for ten years or so.... However it is more costly then polyester and barn paint. Cheers, Bruce- Hide quoted text - - Show quoted text - Thank for the replys. *I've gotten a few good responses "over there' too! Before you do ANYTHING about blisters, google "Pascoe, boat surveying" and read his stuff on blisters. There are very few cases where blisters caused any problems. In almost all cases they are merely cosmetic and below the water where they cannot be seen. I agree with him that any "repairs" you make will actually make the blistering worse. Unless you can identify a real structural problem, forget em and go cruising. I've always found Pascoe's writing to be a little hysterical. He is not wrong but he does tend to write in a manner that tends toward the "worst case" scenario. WEST systems, on the other hand presents information in a much more down to earth manner that, at least to my eyes would tend to create less terror in the mind of the boat owner. Of course, Pascoe appears to be writing for people who have little knowledge about their boat while WEST is obviously writing for people that have, at very least, the desire to repair their own boat. Pascoe, you will note, seems to be writing for the folks who will pay a yard to repair their boat. Two totally different viewpoints. I am not sure but what Pascoe is writing for the larger audience though :-) Cheers, Bruce |
#8
posted to rec.boats.building
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Checking a hull's integrity.
Bruce wrote:
I just went through a fairly extensive blister repair and basically if you use epoxy and fill gouges with chopped mat and epoxy the repair will likely be stronger then the original hull, assuming that the hull is polyester. Feather the gouge out and pack it with epoxy saturated mat. If you are worried about osmosis, after you have made your repairs grind the entire underwater area down to a good solid surface and roll on two coats of epoxy. Put the first coat on and let it set up until it isn't sticky but you can still mark it with your finger and then roll on the second coat. After the second coat sets up, but still not hard, roll on a coat of epoxy high build primer and leave it for a day or so. If you don't wait long enough after the first coat of epoxy the second coat will be very heavy as you have to slop it onto a sticky surface and if you paint the primer too soon it will craze - tiny cracks all over the place. The reason for all this hoopdi-do is that if you let the usual epoxy set hard it will have an oily film on it called "amine blush" and then you have to wash the whole thing clean, let it dry, wipe it with thinner, and repaint. Finish sand and two coats of two part polyurethane. You'll be good for ten years or so.... However it is more costly then polyester and barn paint. Cheers, Bruce I gotta say, Bruce, about the only thing that could be done beyond that it a couple of layers of new glass over the entire underwater hull. A close out layer that seals off all the possible cracks and crevasses from water incursion. Not that such would be economically feasible... Richard -- Richard Lamb http://www.home.earthlink.net/~cavelamb/ |
#10
posted to rec.boats.building
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Checking a hull's integrity.
On Mar 25, 8:53*am, Frogwatch wrote:
On Mar 23, 2:29*pm, Tim wrote: On Mar 23, 7:42*am, Bruce wrote: On Mon, 22 Mar 2010 19:33:17 -0700 (PDT), Tim wrote: OK, I posted this over on rec.boats, but there's to much politi-bs to wade through, event though some people will give me some good advice.. I have a 1977 Marquis 23 ft'r which I'm wanting to sound out to make a good river cruise this late summer/early fall, and I'm asking all kinds of questions about GPS, radios charts etc. but that's beside the point. So here's my question to those experienced in hull and fiberglass repair: OK, in my never ending quest for info, I thought I'd look at my big boat's hull. *I haven't' found any blisters, but the hull has had something repaired on it in times past like to cover a gouge, or *hard nicks. *Nothing big, but some type of a tanish-colored *'epoxy repair' which has been applied to a couple spots on the port side, which are anywhere from the size of your thumb print to no larger than a "Kennedy half". I've tapped around on the hull from about bow to stern and all sounds solid with no dead thuds and nothing spongy. So I feel the integrity of the fiberglass is in good shape. I looked down the keel of the hull from the bow, and there have been several nicks that though seem to be on the surface, I feel they need to have some attention payed to them . I didn't see any sign of fiberglass core actually showing through, however there were some nicks that have gone deep enough to look like they've gone through the gell coat, to the green underlying fiberglass resin. I don't think that the boat has been abused, but sometimes hitting a good stick can cause such nicks, but this looks like it's tapped against some hard heavy rocks like what you might find lining a dock loading ramp or at a spill way. I don't think that water has infiltrated the fiberglass or at least nothing to cause blistering, but I am concerned a bit about it, that it needs some repair. One guy who likes to think with his mouth and not his mind looked at the nicks and suggested that I dab some fingernail polish on it. For pete's sake I know there's lots of fiberglass repair products out there but seeing I don't know much about it, I'd like somebody to recommend to me the choicest products and repair procedures. I don't know much about it, but am willing to try. Thanks for the consideration. Tim I just went through a fairly extensive blister repair and basically if you use epoxy and fill gouges with chopped mat and epoxy the repair will likely be stronger then the original hull, assuming that the hull is polyester. Feather the gouge out and pack it with epoxy saturated mat. If you are worried about osmosis, after you have made your repairs grind the entire underwater area down to a good solid surface and roll on two coats of epoxy. Put the first coat on and let it set up until it isn't sticky but you can still mark it with your finger and then roll on the second coat. *After the second coat sets up, but still not hard, roll on a coat of epoxy high build primer and leave it for a day or so. If you don't wait long enough after the first coat of epoxy the second coat will be very heavy as you have to slop it onto a sticky surface and if you paint the primer too soon it will craze - tiny cracks all over the place. The reason for all this hoopdi-do is that if you let the usual epoxy set hard it will have an oily film on it called "amine blush" and then you have to wash the whole thing clean, let it dry, wipe it with thinner, and repaint. *Finish sand and two coats of two part polyurethane. You'll be good for ten years or so.... However it is more costly then polyester and barn paint. Cheers, Bruce- Hide quoted text - - Show quoted text - Thank for the replys. *I've gotten a few good responses "over there' too! Before you do ANYTHING about blisters, google "Pascoe, boat surveying" and read his stuff on blisters. *There are very few cases where blisters caused any problems. *In almost all cases they are merely cosmetic and below the water where they cannot be seen. *I agree with him that any "repairs" you make will actually make the blistering worse. *Unless you can identify a real structural problem, forget em and go cruising.- Hide quoted text - - Show quoted text - I haven't found any signs of blistering, and I've looked the hull over pretty good. I'm concerned about the deep scratches and chips in the gell coat and in a couple places you can see the resin core of the fiberglass.Theres no fiber hars hanging out and o deep gouges. and I haven't found any soft spots. Basically, I'm just wanting to make sure I dont' get any water intrussion into the hull itself and avoid future problems. |
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