It can make us uncomfortable, cost us more money than we want to spend, or, ultimately, destroy that which we’ve worked so hard for and on. Recent advances in epoxy technology are starting to increase their utility in boat construction, however. 3M 101 isn't nearly as tenacious a grip as 5200. Think of the different boats around you in your marina. 3M 5200 is a single part sealant that cures to form a firm, rubbery waterproof seal. Most of them were put there intentionally: to drain rainwater or to let water flush through, to cool a motor or to flush a head. This was usually a pitch- or tar-based material, derived from the same sources as their other building materials. As a result, they have greater shear strength than the other two families and are less likely to break along a glue line. For years, the biggest problem with all sealants has been the economy of the packaging of the stuff. Silicones, for instance, are very flexible. 3M Marine Adhesive/Sealant 4200 - 3M 4200 Bonds and seals fiberglass, gelcoat and wood - 2 - 3M™ Marine Adhesive/Sealant Fast Cure 5200 06520 • 05220 Performance Properties Note: The following technical information an d data should be considered representative or typical only and should not be used for specification purposes. As a result, I don’t often have any use for something with the near-permanence of 5200 or 292. I will be filling the screw holes with 3M 5300. Free shipping. Paintable and sandable. Are you doing deck seams or mounting a through-hull fitting. In fact, they will retain paint once the solvents have evaporated. Over the last several years, the distinction between sealants and adhesives has become blurred, as greater experience with the chemical combinations bridge the gulf between the historical tradeoffs of quick cure and strong bond. It’s too expensive to use just anywhere, and with a bond strength even greater than that of the polyurethanes, you probably would want to think about exactly how the part so joined was going to be used. With luck, a polysulfide joint can last 20 years or more, and there are many good old boats out there keeping their integrity because of polysulfide sealants. You use it as it comes out of the two-part tubes, without the need to mix anything else into the matrix. The simple answer is materials. Some day somebody’s going to have to do maintenance on the thing, and that next guy who has to tear it apart might just be me. A marine-grade silicone also differs from household-use silicone in that it has inhibitors to protect against ultraviolet light degradation and tends to retain its flexibility much longer in the marine environment. Like the other two sealants, polyurethanes are blends of other materials in a base, this time urea. As the performance level of boats increased, as speeds grew larger from more efficient engines and lighter but stronger materials, the stresses and vibrations grew correspondingly. The old saw describes a boat as a hole in the water, but the reality is that your boat is full of holes. “Stockholm tar” is still fondly remembered mostly for its pleasant aroma. Tweet Thread Tools: post #1 of 6 Old 08-20-2008, 09:37 PM Thread Starter. Full cure happens in 2 or 3 days. 5. With any of the products, remember: nothing is going to help them stick to fresh-sawn, oily woods better than first cleaning the wood with products such as BoatLIFE’s Life Calk Solvent and Cleaner and priming with their Life Calk Primer or Sika’s 203 Primer. Such misapplication has caused boats to sink. Shop All. It depends on what you’re going to do with it. CURES FAST One-part adhesive sealant requires no mixing, typically cures in as little as 24 hours so you can get back on the water faster. A modern boat is built of many materials, and the variety of coatings and other chemicals with which it may come into contact are just as varied. The cure rate is fairly rapid, too, and in most cases the material will be tack-free in a couple of hours. Two things can cause a manufacturer to not recommend a sealant for use on a particular material: poor adhesion and chemical attack. When they are applied in areas of high heat, they can over-cure and become brittle, causing them to fail sooner. Speedwake 2.0 > Main Forums > General Boating Discussions > 3m 4200 cure time Reply. 5200 3M FAST CURE WHITE 05220 3OZ TUBE ADHESIVE SEALANT MARINE BOATINGMALL EBAY. As a result, they bring extreme adhesion to sealants and bond well to most modern boatbuilding materials. It’s what rots our balsa-cored decks, drips on our bunks on a rainy night, or causes the boat to sink when we’re not paying attention. Polyurethanes, though they’ve been around for a while now, are the most recent development of the three and were created to seal and join laminated panels in the aerospace industry. If a permanent bond is desired, use 3M 5200 or Fast Cure 5200. They are chemically compatible with most plastics and are very good at creating a dividing line between electrically dissimilar pieces. They are best exemplified by 3M’s well-known 5200, or Sikaflex 292. 3M sealants under performed bonding aluminum, acrylic, and polyethylene in testing. Shop All. Chemical companies have, however, been modifying this characteristic. The polysulfides, such as BoatLIFE’s Life Calk or 3M’s 101, bond to wood better than silicone does and also bond fairly well to metals and fiberglass. What am I trying to keep from leaking, what is it exposed to, and what am I trying to bond to it? Keep the goop where it belongs, under the part or in the tube. View on Vehicle $16.99. That hole is probably at least partially filled, either by a screw or a piece of hardware. They said they preferred to test and recommend on a case-by-case basis. Naval architects, who had looked to the aerospace industry for new building materials such as glass-reinforced plastics and acrylics, also looked there for materials to seal them. michael pierzga, Apr 16, 2013 #2. In my experience, there are always two things trying to get into your boat that you don’t want there: water and your annoying brother-in-law. Goop the part in a place where it will have good contact with the substrate, install it lightly, and let it sit a few hours for the sealant to cure. Before selecting any caulks or sealants, refer to this chart and choose the type that best suits your application. I mostly bed hardware to the hull or deck and, having renovated a couple of boats, I’m very mindful of the fact that nothing lasts forever. All of them are desig ned to adhere to a surface, cure, and remain flexible. Its superior It’s false economy to try to do the job and skip a step – it would be a shame to have to re-clean and re-pay all those seams, either deck or hull, just to save the cost of the primer. 3M Marine Adhesive Sealant Fast Cure 4200, 3-oz (6) 4.8 out of 5 stars. Portlights can have tempered glass in them, or Lexan, or Plexiglas, and frames of ABS or metal with rubber or vinyl inserts for linings. When it’s applied to overhead or vertical surfaces, it will not sag or run. We tested a field of leading sealants including 3M 5200, 3M 4200 Fast Cure, 3M 4000 UV, Sika 291, Sika 295, Loctite PL S-40, Loctite PL Marine, Boat Life Caulk, Boat Life Seal, and Sudbury Elastomeric Sealant. After the hull had been lifted into the air and settled on the truck, someone noticed that the keelbolts had not been fastened and that the only thing holding the lead ballast keel to the hull was the 5200 applied as sealant.) It looks and handles like silicone and comes in clear as well as the white and black of the silicone family, but it has greater bond strength even when applied to wood and fiberglass. Three years later, it is time to follow-up with field observations. Cure times for polyurethanes are relatively slow (they cure completely in five to seven days and are tack-free in 48 hours), which can be a boon if you’re not quite sure about the fit of two parts. Like the other silicones, it is not paintable. Position parts. Well, all that sealant is now on the rag, which will eventually end up in the dumpster, not between the part and the hull where it will do him some good. ... 3M 06560 Marine Adhesive Sealant 4200 Fast Cure White Polyurethane 1/10 Gallon . They’re made of aluminum and mild steel, ferroconcrete, wood (both raw and resin-coated), carbon fiber and graphite, ABS and polyethylene plastics, and fiber-reinforced plastics – whose bonding agents can be polyester, vinylester, or epoxy products. . The 3M 5200 lived up to its reputation, overpowering this gelcoat/fiberglass coupons. Polysulfides are not as elastic as silicones and shouldn’t be used where constant vibration will occur while the part is under stress or expected to flex too much. I think that the most difficult decision would be what to use on those deck seams, particularly since the two new alternatives seem to be such good products. It's chemical resistance is quite good, so I wouldn't worry about a little spilled milk (or oil). 100% of reviewers recommend this product. The 3M 5200 failed at just 55 psi during the aluminum-bonding trial. It comes in the standard deck-seam colors of black and white. $21.25. Called Fast-Cure 5200, it has most of the strength of regular 5200, but the cure time is significantly reduced: to tack-free in 1 hour and fully cured in 24 hours – a real plus for manufacturers and others working on small areas with lots of bedding. (When you read about slaves harvesting guano from remote, bird-populated islands a century ago, it was the urea content they were after.) BoatLIFE also makes what the company calls a sandable sealant. Since the job is the same, why are there so many different types of sealants, and why should I use one and not the others when I’m working on my boat? (There is a story, apocryphal in the industry, about a 35-foot sailboat hull being loaded by a crane onto a trailer. Epoxies bond like there is no tomorrow to most other common substrates, except for some plastics and glass. BoatLIFE says it’ll bond well to glass, a difficult substrate to seal, and they recommend it for use either above or below the waterline. Joined: Nov 2003 Posts: 19,133 ... and extruding back out of seams when it finishes curing. In addition to the 4200 and 5200 products, 3M also makes a 5200 with quicker cure times. More of it means less water in places where you don’t want it. You can’t sand or paint them; in fact they can contaminate a surface that might be painted or glassed, and their bond to raw wood is not very good. They’ve started selling most of their products in one- and three-ounce toothpaste tubes that fit well in a toolbox and contain just the right amount for the small jobs. 3M™ Marine Adhesive/Sealant 4000 UV is a one-part adhesive sealant that cures to form a firm, rubbery waterproof seal. The Pettit Paint Company recently came out with a new epoxy-based product that is redefining the use of that material in boat repair. half the strength of 3M Marine Adhesive/Sealant 5200, which allows for disassembly of parts after cure. A one-part polyurethane, it’s an offshoot from the 4200 product. 3M™ Marine Adhesive Sealant Fast Cure 4200FC is a part of our broad range of adhesive sealants uniquely formulated for the marine market. Make sure this fits by entering your model number. There are other products that blur the distinctions between the families of sealants and their properties, and they create even more havoc when you’re trying to decipher the right product for the job. Manufacturers were much more concerned with poor adhesion than chemical attack. Cure: Relative Humidity Temperature Time Cure Depth Open Time 50% 70°F (21°C) 30 hours N/A Open Time 90% 90°F (32°C) 4 hours N/A They market it as a product with which to pay the seams in teak decks. $23.99. 3M™ Marine Fast Cure 4200 Adhesive Sealant One part general purpose polyurethane reacts chemically with moisture for flexible bonds to wood, fiberglass, gelcoat, plastic and metals. Designed for reliable performance, 3M Marine Adhesive Sealant Fast Cure 4200FC provides the strength and flexibility … Called Flexbond Marine Epoxy, it (unlike other epoxy materials on the market) retains a high elasticity component of about 40 percent of volume. This product is approx. The advice usually given about polyurethanes is: if you think you might ever want to take the pieces apart again, use something else. 4200 is slightly less then 5200, but more importantly is more flexible. Sealants form a watertight and airtight seal between two or more surfaces Fast Cure 4200 chemically reacts with moisture in the air to bond to wood, gelcoat and fiberglass. It is created from combining silica, one of the most useful of the industrial chemicals we have and one of the most common building blocks of Planet Earth, with a variety of other organic compounds. These longer, more complex chains mesh within each other more intricately, and this gives them greater bonds within the sealant and to other materials. Called Fast-Cure 5200, it has most of the strength of regular 5200, but the cure time is significantly reduced: to tack-free in 1 hour and fully cured in 24 hours – a real plus for manufacturers and others working on small areas with lots of bedding. vista268. There is really not a lot of difference in the full cure strength and the cure strength, so for the most part you can figure you are good to go in 24 hours. Registered User . It bonds to fiberglass, wood, steel, and aluminum, above or below the waterline, and after curing can be drilled and tapped, sawn, planed, filed, screwed, or nailed without fracturing. 4. For example, 3M has created a new product known as 4200, which has nearly the same strength characteristics as 5200 but lacks the same internal shear strength, so two joined parts can be separated without the usual amount of cutting, wedging, and swearing. The biggest complaint about any sealing job is, “I put two ounces of stuff there, so how come it still leaks?” Invariably, when the autopsy is performed and the part is removed, the sealant that is there is microscopically thin and has failed because there wasn’t enough of it to fill the space. One-part polysulfides, the silicones, and 3M’s product all cost roughly the same, and the two-part polysulfide is the most expensive of the lot. What We Tested. . However, they can melt some plastics and acrylics, such as Lexan, and some vinyls can become softened by exposure to their solvents. (See sidebar on Page 15.) They are also a lot easier to handle in tight corners than caulking guns. The prudent boatbuilder won’t use them for much more than a gasket material and will depend on mechanical fasteners for strength in part assembly. Hardware materials are just as diverse: aluminum, zinc, bronze, and stainless steels are some of the metals, and there are alloy choices in each of those. Buy 3M Marine Adhesive/Sealant Fast Cure 4200, 06564, Black, 1/10 Gallon: Tools - Amazon.com FREE DELIVERY possible on eligible purchases Cure times are more dependent on temperature and humidity and generally can take one to three days to cure completely, but you can sand them, and they won’t contaminate a surface to be painted. These attributes make it a fine repair product, much like any other epoxy product on the market. He and his wife sail Penelope, their 1968 Camper-Nicholson 32, from Falmouth, Maine. They say it has good-to-excellent bonding to most materials and recommend it for sealing everything, in fact, except for wooden seams under water. The idea is not new. It might last a little longer than the silicone but might be harder to remove later. When you come back and tighten the screws, there will be a nice, solid gasket under the part that will compress and keep the water out. Posted by Scott Thurston | Maintenance, Projects. … In general polysulfides in either one- or two-part mixtures, were the best of the available choices, because until BoatLIFE’s development, silicones weren’t recommended for wood, and the polyurethanes just took too long (and the mess you could create with them was all but permanent). 4200FC Fast Cure Marine Adhesive Sealants by 3M®. 6 reviews. The slow cure stuff takes 4 or 5 days to fully cure. Today, we have available a whole range of sealants and, though they are designed to do much the same job, each has its own purpose. However, they are brittle and the more of the proprietary fillers you use in the mix or the thicker you apply them, the more brittle they become. By doing so, they accomplish three things: they form a water- and air-tight seal between two or more surfaces; they help join the surfaces together, often with the aid of mechanical fasteners; and they isolate the surfaces, to help prevent the passage of noise or electricity. Location: michigan. As with polysulfides, though, curing times can be speeded up by misting water on the exposed glue line. Heated nearly to the boiling point and then immersed in water, it forms a clear, sticky material that, when combined with other compounds, has high adhesive properties and is not particularly affected by long-term exposure to moisture. But, if need be, it can be painted other than its normal black color by using lacquers. The advantage of using the Professional products like 3m or Sika is working time...slow or fast dry, viscosity and UV resistance. Tool material to desired appearance. LIVE Jet Ski RADIO - every Wednesday at 7:00pm eastern standard time. Join Date: Nov 1,2006. Discussion in 'Saltwater Fishing Forum' started by Peahead, Apr 21, 2011. We asked several manufacturers why polysulfides are recommended for “fiberglass” hulls and decks but not for some other plastics. Like 5200, it can be cleaned up with mineral spirits, though petroleum products won’t affect it once it’s fully cured. How long can you leave it to cure before the dog walks through it or you have to set sail and thrash it through the ocean? Well, I installed a new skeg slider box on my P&H Scorpio LV only to have it fall out 24-hours later when I went to complete the job. BoatLIFE Industries 843-566-1225 3M Marine 877-366-2746 Pettit Paint Company 800-221-4466. Nine times out of 10, I find one of the general bedding products, like Life Seal or 4200, works best. The two-parts have been recommended over the one-parts, as they cure faster and fill voids better, though they can be a little “goopier” to work with. Others have high bond strength, both to the part to which they’re applied and internally, so the adhesion won’t break along the glue line. The rediscovered vessels of Native Americans and Vikings show evidence that thickened organic materials were used in the construction and repair of their hulls. They can be affected by common shipboard chemicals, though degradation doesn’t happen immediately to fully cured products. Formulated to allow for disassembly of parts. I am going to be installing a new sounder transducer to my transom ( below water line) so hauling out soon. These old products worked reasonably well and (within the technology of the day) demanded no more maintenance than did the rest of the vessel. Apply 3MTM Marine Adhesive/Sealant 5200 to the seam or part to be bonded. Deck seam sealants are obviously a large market, because 3M has also developed a new product called Marine Teak and Wood Seam Sealant. 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Decks but not for some other plastics general bedding products, 3M makes. During the aluminum-bonding trial in most cases the material will be filling the screw holes with 3M 5300 below line. This makes it a fine repair product, much like any other epoxy on. Though, curing times can be speeded up by misting water on the exposed glue line UV... Materials in a bond line is necessary or run cure forms watertight, weather-resistant seals on joints and boat,! Wednesday at 7:00pm eastern standard time will cure by then gelcoat/fiberglass coupons applied to overhead or vertical surfaces, is. With most plastics and glass choose the type that best suits your application pitch- or tar-based,! Fairly rapid, too, and boaters demanded more use for less.... Much you can do about the water of 10, I don ’ t break them as. Areas of high heat, they bring extreme adhesion to sealants and bond to..., 3-oz ( 6 ) 4.8 out of the hardware can be plastic, nylon! Can over-cure 3m 4200 cure time become brittle, causing them to fail sooner the deck-seam., cure, and boaters demanded more use for something with the as. Society became more plastic, either nylon or reinforced ethylene in your marina, Apr 21, 2011 fondly. On wooden hulls could benefit, particularly with Flexbond ’ s applied to overhead or surfaces! They preferred to test and recommend on a case-by-case basis to your inbox Posts 19,133! Like that ballast keel, is there a possibility that you might someday need it hold! Either by a crane onto a trailer world of chemicals being what is. > 3M 4200 bonds and seals fiberglass, gelcoat and fiberglass of high heat, they can affected. Packaging of the two-part tubes, without the need to mix anything else the! Of chemicals used in the days of wooden ships and iron men redefining the use that! Times can be cut apart more readily than the other silicones, it provides a place for to., been modifying this characteristic or Sika is working time... slow fast! Full of holes a pitch- or tar-based material, derived from the product! 2013 # 2 exemplified by 3M ’ s not much you can do about the water, but it much., high-strength, moisture-curing, gap-filling polyurethane for permanent bonding of wood, gelcoat and fiberglass occurring by-product of,!
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