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#1
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posted to rec.boats.building
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I would like to ask a similar question as another thread called "Epoxy
over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
#2
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posted to rec.boats.building
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The issue stated by System Three Epoxy when I called their tech support
number is/was the ability of the (phenolic) microballoons or (glass) microspheres to absorb water and to hang onto it. It's better to seal it up with a coat of epoxy after applying it, noting that at least one person here DID skip the seal coat and had good success. I tend to run conservative and follow instructions however. Also note that if the fairing that you are doing is pretty fine, like filling something the size of 80-grit sandpaper grooves for example, that you can use plastic minifibers from WEST (Ultralight Fairing Compound) and it does NOT require a seal coat. And even then, you'd be best off only using this stuff under a light-colored top coat since it does expand and contract with temperature. Larger fills risk becoming visible as time passes by. As far as durability of the microballoon-filled epoxy goes, don't worry about it. It's pretty tough stuff and is fine on a deck. Microspheres produce a finished product that's also tough, but maybe not 'quite' as tough as what you get with microballoons. Keep in mind that I have not tried performing accurate hardness tests, but have used both products many times. I was surprised at how tough the fairing compounds were for normal use. Good luck, Brian wrote in message oups.com... I would like to ask a similar question as another thread called "Epoxy over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
#3
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posted to rec.boats.building
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Seem like I was worrying about the wrong thing. I was worrying about
whether the light density fairing compound may not be able to withstand foot tranffic when I should have worried about the fairing compound may absorb and retain water. Thanks for the info. This means I definitely should apply a coat of epoxy (not thickened) after I have sanded the fairing compound flat. Seem like I should use a roller instead of a brush to apply this coat of epoxy to avoid brush mark. OK, I know what to do now. Thanks. Jay Chan Brian D wrote: The issue stated by System Three Epoxy when I called their tech support number is/was the ability of the (phenolic) microballoons or (glass) microspheres to absorb water and to hang onto it. It's better to seal it up with a coat of epoxy after applying it, noting that at least one person here DID skip the seal coat and had good success. I tend to run conservative and follow instructions however. Also note that if the fairing that you are doing is pretty fine, like filling something the size of 80-grit sandpaper grooves for example, that you can use plastic minifibers from WEST (Ultralight Fairing Compound) and it does NOT require a seal coat. And even then, you'd be best off only using this stuff under a light-colored top coat since it does expand and contract with temperature. Larger fills risk becoming visible as time passes by. As far as durability of the microballoon-filled epoxy goes, don't worry about it. It's pretty tough stuff and is fine on a deck. Microspheres produce a finished product that's also tough, but maybe not 'quite' as tough as what you get with microballoons. Keep in mind that I have not tried performing accurate hardness tests, but have used both products many times. I was surprised at how tough the fairing compounds were for normal use. Good luck, Brian wrote in message oups.com... I would like to ask a similar question as another thread called "Epoxy over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
#4
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posted to rec.boats.building
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Don't use epoxy resin as a last prime. It will not impart much impact
resistance and sanding it flat will probably go through here&there. Instead, sand the deck as you will and use a primer like INterlux 404/414 or Awlgrip 545. Then paint. Interlux publishes a very useful pamphlet on boat finishing. Get it. wrote in message oups.com... Seem like I was worrying about the wrong thing. I was worrying about whether the light density fairing compound may not be able to withstand foot tranffic when I should have worried about the fairing compound may absorb and retain water. Thanks for the info. This means I definitely should apply a coat of epoxy (not thickened) after I have sanded the fairing compound flat. Seem like I should use a roller instead of a brush to apply this coat of epoxy to avoid brush mark. OK, I know what to do now. Thanks. Jay Chan Brian D wrote: The issue stated by System Three Epoxy when I called their tech support number is/was the ability of the (phenolic) microballoons or (glass) microspheres to absorb water and to hang onto it. It's better to seal it up with a coat of epoxy after applying it, noting that at least one person here DID skip the seal coat and had good success. I tend to run conservative and follow instructions however. Also note that if the fairing that you are doing is pretty fine, like filling something the size of 80-grit sandpaper grooves for example, that you can use plastic minifibers from WEST (Ultralight Fairing Compound) and it does NOT require a seal coat. And even then, you'd be best off only using this stuff under a light-colored top coat since it does expand and contract with temperature. Larger fills risk becoming visible as time passes by. As far as durability of the microballoon-filled epoxy goes, don't worry about it. It's pretty tough stuff and is fine on a deck. Microspheres produce a finished product that's also tough, but maybe not 'quite' as tough as what you get with microballoons. Keep in mind that I have not tried performing accurate hardness tests, but have used both products many times. I was surprised at how tough the fairing compounds were for normal use. Good luck, Brian wrote in message oups.com... I would like to ask a similar question as another thread called "Epoxy over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
#5
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posted to rec.boats.building
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No, I will not sand the thin coat of unthickened epoxy (that was the
reason why I said that I need to use a roller instead of a brush to make sure the surface will be flat and not need to be sanded). And I will be doing this to avoid the fairing compound from absorbing water. I will not do this to improve the impact resistance because I got a reply saying that the fairing compound (micoballoons) should be tough enough to withstand normal foot traffic. I guess this should be OK to use unthickened epoxy as the last coat before I paint it over with non-skid paint. Moreover, I will paint it over with non-skid paint that doesn't need to be perfectly smooth and flat anyway, right? Jay Chan Jim Conlin wrote: Don't use epoxy resin as a last prime. It will not impart much impact resistance and sanding it flat will probably go through here&there. Instead, sand the deck as you will and use a primer like INterlux 404/414 or Awlgrip 545. Then paint. Interlux publishes a very useful pamphlet on boat finishing. Get it. wrote in message oups.com... Seem like I was worrying about the wrong thing. I was worrying about whether the light density fairing compound may not be able to withstand foot tranffic when I should have worried about the fairing compound may absorb and retain water. Thanks for the info. This means I definitely should apply a coat of epoxy (not thickened) after I have sanded the fairing compound flat. Seem like I should use a roller instead of a brush to apply this coat of epoxy to avoid brush mark. OK, I know what to do now. Thanks. Jay Chan Brian D wrote: The issue stated by System Three Epoxy when I called their tech support number is/was the ability of the (phenolic) microballoons or (glass) microspheres to absorb water and to hang onto it. It's better to seal it up with a coat of epoxy after applying it, noting that at least one person here DID skip the seal coat and had good success. I tend to run conservative and follow instructions however. Also note that if the fairing that you are doing is pretty fine, like filling something the size of 80-grit sandpaper grooves for example, that you can use plastic minifibers from WEST (Ultralight Fairing Compound) and it does NOT require a seal coat. And even then, you'd be best off only using this stuff under a light-colored top coat since it does expand and contract with temperature. Larger fills risk becoming visible as time passes by. As far as durability of the microballoon-filled epoxy goes, don't worry about it. It's pretty tough stuff and is fine on a deck. Microspheres produce a finished product that's also tough, but maybe not 'quite' as tough as what you get with microballoons. Keep in mind that I have not tried performing accurate hardness tests, but have used both products many times. I was surprised at how tough the fairing compounds were for normal use. Good luck, Brian wrote in message oups.com... I would like to ask a similar question as another thread called "Epoxy over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
#6
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posted to rec.boats.building
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It won't be smooth enough to paint and without a sanding the adhesion of
paint is uncertain. Either put on 2-3 coats and sand it or use an epoxy primer whoich goes on much smoother. wrote in message oups.com... No, I will not sand the thin coat of unthickened epoxy (that was the reason why I said that I need to use a roller instead of a brush to make sure the surface will be flat and not need to be sanded). And I will be doing this to avoid the fairing compound from absorbing water. I will not do this to improve the impact resistance because I got a reply saying that the fairing compound (micoballoons) should be tough enough to withstand normal foot traffic. I guess this should be OK to use unthickened epoxy as the last coat before I paint it over with non-skid paint. Moreover, I will paint it over with non-skid paint that doesn't need to be perfectly smooth and flat anyway, right? Jay Chan Jim Conlin wrote: Don't use epoxy resin as a last prime. It will not impart much impact resistance and sanding it flat will probably go through here&there. Instead, sand the deck as you will and use a primer like INterlux 404/414 or Awlgrip 545. Then paint. Interlux publishes a very useful pamphlet on boat finishing. Get it. wrote in message oups.com... Seem like I was worrying about the wrong thing. I was worrying about whether the light density fairing compound may not be able to withstand foot tranffic when I should have worried about the fairing compound may absorb and retain water. Thanks for the info. This means I definitely should apply a coat of epoxy (not thickened) after I have sanded the fairing compound flat. Seem like I should use a roller instead of a brush to apply this coat of epoxy to avoid brush mark. OK, I know what to do now. Thanks. Jay Chan Brian D wrote: The issue stated by System Three Epoxy when I called their tech support number is/was the ability of the (phenolic) microballoons or (glass) microspheres to absorb water and to hang onto it. It's better to seal it up with a coat of epoxy after applying it, noting that at least one person here DID skip the seal coat and had good success. I tend to run conservative and follow instructions however. Also note that if the fairing that you are doing is pretty fine, like filling something the size of 80-grit sandpaper grooves for example, that you can use plastic minifibers from WEST (Ultralight Fairing Compound) and it does NOT require a seal coat. And even then, you'd be best off only using this stuff under a light-colored top coat since it does expand and contract with temperature. Larger fills risk becoming visible as time passes by. As far as durability of the microballoon-filled epoxy goes, don't worry about it. It's pretty tough stuff and is fine on a deck. Microspheres produce a finished product that's also tough, but maybe not 'quite' as tough as what you get with microballoons. Keep in mind that I have not tried performing accurate hardness tests, but have used both products many times. I was surprised at how tough the fairing compounds were for normal use. Good luck, Brian wrote in message oups.com... I would like to ask a similar question as another thread called "Epoxy over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
#7
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posted to rec.boats.building
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Jim,
Do you happen to know if the 404/414 Barrier Kote from Interlux provides a good enough barrier between the epoxy and alkyd enamels? I'm getting close to painting the outside of my boat (System Three epoxy) and need to decide if I want the S-III primer under the 404/414 or not... I guess I should make test panels and try it out, but I was just wondering if anyone had personal experience with the 404/414 and alkyd enamels (known to not cure reliably on regular epoxy ...some chemical reason I suppose.) Brian D "Jim Conlin" wrote in message ... Don't use epoxy resin as a last prime. It will not impart much impact resistance and sanding it flat will probably go through here&there. Instead, sand the deck as you will and use a primer like INterlux 404/414 or Awlgrip 545. Then paint. Interlux publishes a very useful pamphlet on boat finishing. Get it. wrote in message oups.com... Seem like I was worrying about the wrong thing. I was worrying about whether the light density fairing compound may not be able to withstand foot tranffic when I should have worried about the fairing compound may absorb and retain water. Thanks for the info. This means I definitely should apply a coat of epoxy (not thickened) after I have sanded the fairing compound flat. Seem like I should use a roller instead of a brush to apply this coat of epoxy to avoid brush mark. OK, I know what to do now. Thanks. Jay Chan Brian D wrote: The issue stated by System Three Epoxy when I called their tech support number is/was the ability of the (phenolic) microballoons or (glass) microspheres to absorb water and to hang onto it. It's better to seal it up with a coat of epoxy after applying it, noting that at least one person here DID skip the seal coat and had good success. I tend to run conservative and follow instructions however. Also note that if the fairing that you are doing is pretty fine, like filling something the size of 80-grit sandpaper grooves for example, that you can use plastic minifibers from WEST (Ultralight Fairing Compound) and it does NOT require a seal coat. And even then, you'd be best off only using this stuff under a light-colored top coat since it does expand and contract with temperature. Larger fills risk becoming visible as time passes by. As far as durability of the microballoon-filled epoxy goes, don't worry about it. It's pretty tough stuff and is fine on a deck. Microspheres produce a finished product that's also tough, but maybe not 'quite' as tough as what you get with microballoons. Keep in mind that I have not tried performing accurate hardness tests, but have used both products many times. I was surprised at how tough the fairing compounds were for normal use. Good luck, Brian wrote in message oups.com... I would like to ask a similar question as another thread called "Epoxy over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
#8
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posted to rec.boats.building
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Pick ONE manufacturer, whether Syetem Three, Interlux or whoever.
Get the instructions they publish on their system of products. Read it and follow it. "Brian D" wrote in message ... Jim, Do you happen to know if the 404/414 Barrier Kote from Interlux provides a good enough barrier between the epoxy and alkyd enamels? I'm getting close to painting the outside of my boat (System Three epoxy) and need to decide if I want the S-III primer under the 404/414 or not... I guess I should make test panels and try it out, but I was just wondering if anyone had personal experience with the 404/414 and alkyd enamels (known to not cure reliably on regular epoxy ...some chemical reason I suppose.) Brian D "Jim Conlin" wrote in message ... Don't use epoxy resin as a last prime. It will not impart much impact resistance and sanding it flat will probably go through here&there. Instead, sand the deck as you will and use a primer like INterlux 404/414 or Awlgrip 545. Then paint. Interlux publishes a very useful pamphlet on boat finishing. Get it. wrote in message oups.com... Seem like I was worrying about the wrong thing. I was worrying about whether the light density fairing compound may not be able to withstand foot tranffic when I should have worried about the fairing compound may absorb and retain water. Thanks for the info. This means I definitely should apply a coat of epoxy (not thickened) after I have sanded the fairing compound flat. Seem like I should use a roller instead of a brush to apply this coat of epoxy to avoid brush mark. OK, I know what to do now. Thanks. Jay Chan Brian D wrote: The issue stated by System Three Epoxy when I called their tech support number is/was the ability of the (phenolic) microballoons or (glass) microspheres to absorb water and to hang onto it. It's better to seal it up with a coat of epoxy after applying it, noting that at least one person here DID skip the seal coat and had good success. I tend to run conservative and follow instructions however. Also note that if the fairing that you are doing is pretty fine, like filling something the size of 80-grit sandpaper grooves for example, that you can use plastic minifibers from WEST (Ultralight Fairing Compound) and it does NOT require a seal coat. And even then, you'd be best off only using this stuff under a light-colored top coat since it does expand and contract with temperature. Larger fills risk becoming visible as time passes by. As far as durability of the microballoon-filled epoxy goes, don't worry about it. It's pretty tough stuff and is fine on a deck. Microspheres produce a finished product that's also tough, but maybe not 'quite' as tough as what you get with microballoons. Keep in mind that I have not tried performing accurate hardness tests, but have used both products many times. I was surprised at how tough the fairing compounds were for normal use. Good luck, Brian wrote in message oups.com... I would like to ask a similar question as another thread called "Epoxy over fairing compound?". But he was asking about putting a layer of epoxy on the hull. I would like to ask whether I need to put a coat of epoxy over the fairing compound (that is epoxy mixed with light density micoballoons) on a deck surface. I am asking this because I am wondering whether the light density fairing compound can handle normal foot traffic. I would prefer not to do any extra work if this is not necessary. By the way, I intend to put a layer of non-skid paint over the faired surface. I mention this just in case this makes any difference. Thanks in advance for any info. Jay Chan |
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