What is the BEST sealant for leaking stanchions, ports, boltholes, keel u-bolts et all??? I generally use "Phenoseal" or GE silicone. Perhaps someone knows of a better marine product. (better with salt water etc)
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A Better method, may be.
Chuck: Something to consider. Drill out the holes with a slightly larger bit. Then seal the hole with epoxy. When the epoxy cures you can redrill with the proper sized drill in the center. This will protect the hull of deck core too. Then you can just rebed the item with a high quality caulking material. I believe that silicone is generally not recommended for exterior use. It does not do well with the sun. There are several product that you can use but I would stay away from 3M 5200. This is for permanent or near permanent installations. Check with your local marine shop or any of the catalogues they have some charts for the proper materials to use.
Chuck: Something to consider. Drill out the holes with a slightly larger bit. Then seal the hole with epoxy. When the epoxy cures you can redrill with the proper sized drill in the center. This will protect the hull of deck core too. Then you can just rebed the item with a high quality caulking material. I believe that silicone is generally not recommended for exterior use. It does not do well with the sun. There are several product that you can use but I would stay away from 3M 5200. This is for permanent or near permanent installations. Check with your local marine shop or any of the catalogues they have some charts for the proper materials to use.
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R.W.Landau
NO SILICONE!
Silicone is one of the biggest miss used products. It does not work on most marine applications and only works some times in bathrooms or kitchens. Seriously, steer clear of silicone use. It does not bond well to alot of products and is to fickle about bonding two different materials. Don't just try to caulk around leaky things. Remove and rebed them. The catalogs are filled with good products for different purposes. The MFG. recommendations are probably the best. If you chose a product use it (prep and application) according to MFG. r.w.landau
Silicone is one of the biggest miss used products. It does not work on most marine applications and only works some times in bathrooms or kitchens. Seriously, steer clear of silicone use. It does not bond well to alot of products and is to fickle about bonding two different materials. Don't just try to caulk around leaky things. Remove and rebed them. The catalogs are filled with good products for different purposes. The MFG. recommendations are probably the best. If you chose a product use it (prep and application) according to MFG. r.w.landau
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Dick Vance
Life-Calk
Chuck, I've used Life-Calk, a polysulfide sealant for those type jobs for many years. It is extremely durable but you can remove the fixture if necessary. It also retains some flexibility so that it doesn't crack and lose its seal. 3M 101 is a similar product but I've never used it. The 3M 5200 is good for thru-hulls or permanent bonding for stuff that you never expect to remove. HTH Dick Vance H-25.5 "Honey Bear"
Chuck, I've used Life-Calk, a polysulfide sealant for those type jobs for many years. It is extremely durable but you can remove the fixture if necessary. It also retains some flexibility so that it doesn't crack and lose its seal. 3M 101 is a similar product but I've never used it. The 3M 5200 is good for thru-hulls or permanent bonding for stuff that you never expect to remove. HTH Dick Vance H-25.5 "Honey Bear"
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Bob
Sealaant
I've had good luck with LifeSeal, it contains both silicone and polyurethane. Recently, I've used 3M's 4200 Quick Cure. Works great.
I've had good luck with LifeSeal, it contains both silicone and polyurethane. Recently, I've used 3M's 4200 Quick Cure. Works great.
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Peggie Hall/Head Mistress
"Silcone Sealant" is an oxymoron
Silicone doesn't SEAL anything...it just fills space. As Steve pointed out, it doesn't bond to most materials--just grab hold of the end of any that's been used to "seal" a seam...you call pull it it out intact--plus, over time silicone dries out, cracks, and falls out. For some applications, just filling up the space is fine. But silicone shouldn't be used anywhere you truly need to SEAL anything permanently.
Silicone doesn't SEAL anything...it just fills space. As Steve pointed out, it doesn't bond to most materials--just grab hold of the end of any that's been used to "seal" a seam...you call pull it it out intact--plus, over time silicone dries out, cracks, and falls out. For some applications, just filling up the space is fine. But silicone shouldn't be used anywhere you truly need to SEAL anything permanently.
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Dave Oberholtzer
5200
If you really want to seal something and for that matter never get it off use 3M 5200. It is a great sealent and also once it is on the only way to get it or the item you used with it is to cut through the caulk so use it on things you do not want to get off. It is great stuff. Dave Oberholtzer Hydrotherapy
If you really want to seal something and for that matter never get it off use 3M 5200. It is a great sealent and also once it is on the only way to get it or the item you used with it is to cut through the caulk so use it on things you do not want to get off. It is great stuff. Dave Oberholtzer Hydrotherapy
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