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 Cure Time: Tack-Free: 2 Hours; Complete Cure: 24 Hours: Type: One-Part Adhesive One-Part Sealant However, they can melt some plastics and acrylics, such as Lexan, and some vinyls can become softened by exposure to their solvents. And after the hull has been created, it can be finished in gels or paints in any range of chemical combinations, from lacquers and enamels to urethanes and polyurethanes. Some are quick-curing, for convenience and to aid in the economics of construction. Paintable and sandable. So follow the general selection chart, but double-check the container and the manufacturer’s selection chart as well. He’s applied the goop, installed the part, cranked down hard on the fastenings, wiped off all the stuff that leaked out around the edges, and gone on to the next piece. 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. This product is approx. 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. check out the. This is a fast curing, one-part, polyurethane adhesive sealant that creates strong, flexible, removable bonds. Today, there are three basic families of chemicals used in marine sealants: silicones, polysulfides, and polyurethanes. Silicones, for instance, are very flexible. 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. 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. 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. This fits your . 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? Make sure this fits by entering your model number. 100% of reviewers recommend this product. Speedwake 2.0 > Main Forums > General Boating Discussions > 3m 4200 cure time Reply. 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. Other chemicals are found on board: fuels and oils, cleaning solvents and waxes. 3M Marine Adhesive Sealant Fast Cure 4200, 3-oz (6) 4.8 out of 5 stars. . 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. 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. It doesn’t shrink or crack due to overheating while curing, and it can be pre-tinted with all types of alkyd, polyurethane-, or epoxy-based paints or tints without losing significant strength. What sets it apart is its flexibility. 3M™ Marine Adhesive Sealant Fast Cure 4200FC is a part of our broad range of adhesive sealants uniquely formulated for the marine market. But boats and society became more plastic, and boaters demanded more use for less maintenance. michael pierzga, Apr 16, 2013 #2. 3M 4200 Fast Cure is a one-part general purpose polyurethane sealant with good adhesion to wood, fiberglass, gelcoat, plastic, and metal. 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. Designed for marine applications above and below the waterline. What are the chances that this adhesive will cure by then? The specialized world of chemicals being what it is, not all of them work as well together as they might. 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). 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. 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. BoatLIFE Industries 843-566-1225 3M Marine 877-366-2746 Pettit Paint Company 800-221-4466. We asked several manufacturers why polysulfides are recommended for “fiberglass” hulls and decks but not for some other plastics. 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.) Manufacturers were much more concerned with poor adhesion than chemical attack. As a result, they have greater shear strength than the other two families and are less likely to break along a glue line. BoatLIFE also makes what the company calls a sandable sealant. A one-part polyurethane, it’s an offshoot from the 4200 product. 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. Some silicones are not intended for use below the waterline. 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. They are also a lot easier to handle in tight corners than caulking guns. A deck fill? These old products worked reasonably well and (within the technology of the day) demanded no more maintenance than did the rest of the vessel. Before selecting any caulks or sealants, refer to this chart and choose the type that best suits your application. I reinstalled the box this morning using additional 5200. Remove excess material with 3M TM General Purpose Adhesive Cleaner*, P. N. 08984. Full cure happens in 2 or 3 days. Like the other two sealants, polyurethanes are blends of other materials in a base, this time urea. At this time I do not recommend painting BilgeKote over 3M 4200–they appear to be incompatible. BoatLIFE introduced its Life Seal several years ago. Two things can cause a manufacturer to not recommend a sealant for use on a particular material: poor adhesion and chemical attack. 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. 3M 5300 cure time ? Formulated to allow for disassembly of parts. Buy 3M Marine Adhesive/Sealant Fast Cure 4200, 06564, Black, 1/10 Gallon: Tools - Amazon.com FREE DELIVERY possible on eligible purchases 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. $21.25. 3M 5200 is fairly hard where cured, but 101 and 4200 are more pliable. You use it as it comes out of the two-part tubes, without the need to mix anything else into the matrix. 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. In addition to the 4200 and 5200 products, 3M also makes a 5200 with quicker cure times. 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. Fortunately, manufacturers have become aware of the fact that, while a 10-ounce tube worked well for big jobs and boatbuilders, most of the rest of us waste more than we use by having the stuff harden in the tubes between uses. That hole is probably at least partially filled, either by a screw or a piece of hardware. They will “give” in response to slight shocks and vibrations without tearing or separating from the substrate, and they tend to be chemically impervious. How We Tested Location: michigan. Some of the hardware can be plastic, either nylon or reinforced ethylene. But because they were organic, they would eventually dry out or decay. Designed for reliable performance, 3M Marine Adhesive Sealant Fast Cure 4200FC provides the strength and flexibility … The 3M 5200 lived up to its reputation, overpowering this gelcoat/fiberglass coupons. Shop All. 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. Like the other silicones, it is not paintable. 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. Forms a watertight seal on joints and boat hardware above and below the waterline. (When you read about slaves harvesting guano from remote, bird-populated islands a century ago, it was the urea content they were after.) 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 cured, 4200 forms watertight, weather-resistant seals on joints and boat hardware above or below the waterline. 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. 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. In the end, follow the manufacturers’ recommendations, be mindful of the materials involved and the amount of bond strength you need, and don’t be afraid to be liberal with the goop. - 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. 4200 FC (fast cure) is ideal for hardware and bedding applications. I leave for a kayaking camping trip in three days. All of them are desig ned to adhere to a surface, cure, and remain flexible. Stays flexible too - allows for structural movement. What We Tested. The old rule of thumb, When in doubt, prime it out, works just as well for sealants as it does for paint. The main selling point is that, unlike polysulfides, it fully cures in 24 hours and is tack-free and sandable within 30 minutes, a real consideration on a project that is literally underfoot. 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. Tearing instead of than peeling, 3M 4200 Fast Cure showed good adhesion. 3M™ Marine Adhesive Sealant 5200 is extremely strong and retains its strength above or below water line. 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. This was used to waterproof hulls and rigging back in the days of wooden ships and iron men. Perhaps the best idea would be to find someone with experience in all of them, pick his brain and make your decision based on your own situation. 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. Like 5200, it can be cleaned up with mineral spirits, though petroleum products won’t affect it once it’s fully cured. 3M 5200 is a single part sealant that cures to form a firm, rubbery waterproof seal. Scott has returned three boatyard monsters to solid sailboat status with the primary addition of elbow grease. Common in household and automotive applications, it is among the first things we think of when we use the term “sealants.”. 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. 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. What happens is that the part installer becomes too gung-ho and tries to do too much in one day. In fact, they will retain paint once the solvents have evaporated. 3M™ Marine Adhesive Sealant Fast Cure 4200FC is a one-component, medium-strength, moisture-curing, gap-filling polyurethane that delivers strong, flexible bonds to aluminum, wood, gelcoat and fiberglass. While there’s not much you can do about family problems, there is something you can do about the water. Fast Cure 4200 chemically reacts with moisture in the air to bond to wood, gelcoat and fiberglass. Purer forms of silicone can allow mold to grow, and this can contribute to rot in wood (as well as a decline in aesthetic appeal) although most used in marine applications have a mildicide mixed in. Peahead Well-Known Member. It’s easily identified by its strong aroma and good tooling properties. Silicone is perhaps the most basic of the three. Product #079-0216-2. It can be cut apart more readily than the polyurethanes, and it cures faster than they do, too. 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. Discussion in 'Saltwater Fishing Forum' started by Peahead, Apr 21, 2011. Keep the goop where it belongs, under the part or in the tube. As with polysulfides, though, curing times can be speeded up by misting water on the exposed glue line. When it’s applied to overhead or vertical surfaces, it will not sag or run. Recent advances in epoxy technology are starting to increase their utility in boat construction, however. 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. More of it means less water in places where you don’t want it. For years, the biggest problem with all sealants has been the economy of the packaging of the stuff. vista268. Palmetto Watercraft Association of South Carolina, Region 6 Renegades - Michigan PWCToday Chapter, http://cgi.ebay.com/ebaymotors/ws/eB...m=270299621828, http://multimedia.3m.com/mws/mediawe...Vs6EVs6E666666, http://www.3m.com/product/informatio...e-Sealant.html, Middle Tennessee Personal Watercraft Club, If this is your first visit, be sure to Join Date: Nov 1,2006. If a permanent bond is desired, use 3M 5200 or Fast Cure 5200. The 3M 5200 failed at just 55 psi during the aluminum-bonding trial. Because of the metallic nature of sulfur, they are not particularly suited to electrical insulation and should not be used between two items of dissimilar metals. View on Vehicle $16.99. I will be filling the screw holes with 3M 5300. 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. Are you doing deck seams or mounting a through-hull fitting. But, if need be, it can be painted other than its normal black color by using lacquers. It comes in the standard deck-seam colors of black and white. It is a blend of silicone and polyurethane formulated specifically for use with fiberglass. 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. As the name suggests, polysulfides are derivatives of the element sulfur, another common earth element. Chemical companies have, however, been modifying this characteristic. What is needed, whenever two or more solid objects are fastened together, is something that will keep even the smallest amount of water out, something to seal the two mating surfaces and dam the trickle before it becomes a flood . (See sidebar on Page 15.) 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? 4. 3M 101 isn't nearly as tenacious a grip as 5200. It might last a little longer than the silicone but might be harder to remove later. You are somewhat limited by choice, as not all are available in both colors; but all are advertised as having similar imperviousness to chemicals and similar lifespans. But uncontrolled water is the stuff we worry about. 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. When fully cured, this high strength marine adhesive remains flexible and suitable for use where shock, vibration, shrinking or swelling are concerns. 4200FC Fast Cure Marine Adhesive Sealants by 3M®. 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. $23.99. “Stockholm tar” is still fondly remembered mostly for its pleasant aroma. The idea is not new. 3M™ Marine Adhesive/Sealant 4000 UV is a one-part adhesive sealant that cures to form a firm, rubbery waterproof seal. Think of the different boats around you in your marina. 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. Its superior Other industries, in particular the aerospace industry, were developing materials to seal panels that made up flight surfaces and withstand the rigors of flight and space travel. It differs from BoatLIFE’s seam compound in that it takes a little longer to cure, though not as long as the polysulfides. 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. … 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. Tweet Thread Tools: post #1 of 6 Old 08-20-2008, 09:37 PM Thread Starter. Naturally, selection charts are going to deal in general cases. Certain repairs on wooden hulls could benefit, particularly with Flexbond’s ability to hold a fastener. Position parts. The stuff we squeeze out of a tube is chemically similar to the spray lubricants we use, and we also find it in paints, waxes, and other protective coatings and in electrical insulation. LIVE Jet Ski RADIO - every Wednesday at 7:00pm eastern standard time. Shop All. Per 3M, 5200 supposedly cures in 24-hours. And it might be good for a quick-and-dirty repair patch. The old saw describes a boat as a hole in the water, but the reality is that your boat is full of holes. 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. They market it as a product with which to pay the seams in teak decks. Boats are already too expensive to be throwing away supplies because of misapplication. The simple answer is materials. It depends on what you’re going to do with it. Any time a hole is drilled, even partially, through a solid structure, it provides a place for water to enter. Joined: Nov 2003 Posts: 19,133 ... and extruding back out of seams when it finishes curing. 3M Marine Adhesive/Sealant 4200 - 3M 4200 Bonds and seals fiberglass, gelcoat and wood When they are applied in areas of high heat, they can over-cure and become brittle, causing them to fail sooner. It’s an acidic compound used in fertilizers, among other things, whose elements combine hydrogen, nitrogen, carbon, and oxygen into long molecular chains, longer than the molecules of silicones and polysulfides. Preparation was as follows: Apply 3M 4200; Let cure 72 hours (cure time is … Such misapplication has caused boats to sink. 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. Metal to Fiberglass (Deck & Hull Hardware). What to use? This was usually a pitch- or tar-based material, derived from the same sources as their other building materials. Registered User . Thanks. As a result, I don’t often have any use for something with the near-permanence of 5200 or 292. The advice usually given about polyurethanes is: if you think you might ever want to take the pieces apart again, use something else. Tool material to desired appearance. These attributes make it a fine repair product, much like any other epoxy product on the market. 3M™ Marine Adhesive Sealant Fast Cure 4200: ... 4200 Fast Cure Tack-Free Time @ 73°F and 50% RH 1-2 Hours Rate of Cure @ 73°F and 50% RH 3/16" (4 mm) per 24 hour Shore A Hardness (ASTM C661) 40 Tensile Strength (ASTM D412) 180 psi (1.24 MPa) 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. 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. Flexbond works the other way. The solvents and characteristics of each of the families of sealants have properties that make each one better suited to a particular kind of work. 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. It cures to form a firm, rubbery, waterproof seal on joints and boat hardware, above and below the waterline. half the strength of 3M Marine Adhesive/Sealant 5200, which allows for disassembly of parts after cure. I remove 5200 with a hot knife. The advantage of using the Professional products like 3m or Sika is working time...slow or fast dry, viscosity and UV resistance. However, it seems to be a breakthrough in materials technology, one which I think is going to spur a whole development of similar products and one which will really expand our bag of boat repair tricks. Tap to zoom Click or tap to zoom. Are you asking it to hold back water and create a custom gasket, or do you want it to glue two parts together? Deck seam sealants are obviously a large market, because 3M has also developed a new product called Marine Teak and Wood Seam Sealant. They said they preferred to test and recommend on a case-by-case basis. 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. in other words, a sealant. The flexible joint that sometimes develops between a ballast keel and the hull of a sailboat comes to mind, a joint at which no other material seems to hold. 6 reviews. The down side is that, though they are elastic, most silicones don’t have much bond strength, particularly to fiberglass, and won’t do much more than hold themselves together. Nine times out of 10, I find one of the general bedding products, like Life Seal or 4200, works best. 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 Flexbond Marine Epoxy, it (unlike other epoxy materials on the market) retains a high elasticity component of about 40 percent of volume. This makes it a possible sealant in places where the greatest strength in a bond line is necessary. Historical records show that early boatbuilders were confronted by the same problem. 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. Tensile and Elongation Test: A 1/8 inch (0.3175 cm) dumbbell specimen with a 1/8 inch (0.3175 cm) square cross section was tested at 2.0 inches/minute At this point the stuff will be hard and almost at full strength. 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. Epoxies bond like there is no tomorrow to most other common substrates, except for some plastics and glass. Posted by Scott Thurston | Maintenance, Projects. 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. What am I trying to keep from leaking, what is it exposed to, and what am I trying to bond to it? Calls a sandable Sealant to increase their utility in boat construction, however,. 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Project how-tos and more delivered to your inbox sulfur, another common earth element modern boatbuilding materials a kayaking trip. Doesn ’ t often have any use for less maintenance there a that! Tested 3M Marine Adhesive Sealant 5200 is a story, apocryphal in the economics construction... And rigging back in the economics of construction Fishing Forum ' started Peahead... By the same sources as their other building materials supplies because of misapplication scott returned... Best sailing news, boat project how-tos and more delivered to your inbox modern boatbuilding materials the industry, a. Products like 3M or Sika is working time... slow or fast cure forms watertight weather-resistant! Above or below water line ) so hauling out soon the most of. This time I do not recommend a Sealant for use on a particular material: poor adhesion than attack! 3M 5200 failed at just 55 psi during the aluminum-bonding trial recommended for “ fiberglass ” and... 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