Polyurethane caulks are the super heroes of the marine sealant world and if there’s a “Super Man” caulk, it’s 3M’s 5200. A sampling of caulking materials found at the chandlers, include fast and slow cure, permanent or removable, polyurethane adhesive/sealant, polysulfide bedding compound and silicone, as well as glazing adhesive, teak deck caulk etc., and too many choices. This type of sealant is a relatively new entrant into the sealant world. 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. Their lack of solvents minimizes shrinkage. Re: caulking vs 3m 4200 Don't use silicone if you want paint to adhere (both bottom paint or interior). The benefit of the material is that it gives you the ability to apply the sealant with a gun, so it’s a lot faster and easier to get clean lines on your flashing. Lower Viscosity Caulk; If you find the sealants are too sticky and do not flow enough the Liquid version of LifeSeal is self-leveling. Most of these sealants are high viscosity liquid sealants (except Butyl a tape) which are applied by tube, or caulk gun. For below waterline or fittings which I deem permanent such as railing bases, transducers, drain tubes, and T-top mounting plates, 5200. METHOD OF APPLICATION Life-Calk can be applied directly from cartridges or bulk pails. Forms watertight, weather-resistant seals on joints and boat hardware above or below the waterline. Cartridge $ 30.75 Select options. 4200 or … Beware that this is a poly-sulfide and although it bonds well to most surfaces, … oz. Life Seal® Sealant 3 fl. Boatlife makes a product called Life Caulk which is in a yellow tube. Caulk can have between 100 and 800% elongation and more at break. Choosing the right sealant or caulk to bed fittings is confusing and a walk down the aisle at the store leaves you wondering what do I need. … Many caulks are moisture cured; some are 1 part slow Curing times 2-14 days others are 2 part fast cure. However, they can melt some plastics and acrylics, such as Lexan, and some vinyls can become softened by exposure to their solvents. Disadvantages Disadvantages include the tape is not impervious to gasoline, or diesel, Sticky in high temps, does not flow in cold temps. Compare. 3M 5260 A one-part general purpose polyurethane that chemically reacts with moisture to deliver flexible bonds with good adhesion to wood, fiberglass, gelcoat, certain plastics and metals. Compare; Find My Store. This product is approximately half … These numbers are a rough guide as products vary. Leaks can be just annoying, or cause structural damage and even lead to sinking. The liquid is able to easily spread onto a fitting and when pressured it flows into all voids. Compare. © Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000. All the soft/rotten or swollen areas started at screw holes which were not sealed. APPLICATION PROCEDURES 1. Its flexibility allows for the dissipation of stress caused by shock, vibration, swelling or shrinking. In addition, its flexibility … Disadvantages; Stay away from 5200 unless you are looking for a permanent bond Solvents in Polyurethane attacks plastics, like polycarbonate, acrylic, ABS, and PVC. 3. I hear it doesn't play nice with … 2. Formulated to allow for … Choosing the right caulk for your application will be simplified by answering these questions; Above or below waterline, Do you need bonding or just a gasket, Will you remove fitting later, are fittings plastic. Plexus is so good an adhesive J Boats use it for Hull to Deck joints and do not use any mechanical fasteners. There is a significant difference between 3M 4200 and 5200. Life Calk is a polysulfide. The WM 8200 has a short tube life; 3Ms 4200 didn't adhere to a wood surface well; and all polyurethane products have to be kept away from acrylics and Lexan (polycarbonate) surfaces. Shop 3M Marine Adhesive/Sealant 10-oz White Sanded Caulk in the Marine Hardware department at Lowe's.com. Loctite Marine Sealant. Shorter open time than standard 4200 or 5200, tho, so you need to have yer ducks in a row. Weak adhesive Only for above waterline. Then, this product can be your right match. Plexus; used by Tillotsen Pearson and J Boats. Adhesion = peel strength, strength = tensile strength. It is almost impossible to replace a through hull fitting that has been sealed with 5200. The higher the stretch the better the caulk bond will hold up. For any screws penetrating wood, dab the inside of the hole with thinned epoxy or Git-Rot to seal wood. Polyether sealants are made from modified silicone. Life-Calk Primer 8 fl. Imagine trying to exert 400 to 700 psi of force on a fitting to get it free from your boat, and you get the idea—it’s amazingly strong, sticky stuff (and with good sealant qualities, too). 4. Very little on a boat is rigid and so things like windows, hatches, and port lights need to be able to flex and expand/contract … Life-Calk Sealant 3 fl. Otherwise, the 8200, 4200, and Sikaflex 291 LOT are good choices for sealing jobs where adhesion counts-like … oz. oz. Using the wrong material could make you life MUCH more difficult in the future! Tube $ 16.57 Select options. they also shrink and break down in the marine environment. Topic: 3M 4200 Vs. Life Caulk for engine mounting: bfletcher: posted 03-31-2008 08:55 AM ET (US) There has been some discussion about these 2 caulks/sealants/adhesives in posts about mounting outbaords, but which one is really the best for mounting and sealing the motor mount bolts? 3M 5200 is a single part sealant that cures to form a firm, rubbery waterproof seal. Despite this leaks are very common and can be found on new boats and old boats alike. 5200 or 4200: Life-calk: 292: Thru hull: Hull keel joint or Hull deck joint: 5200 or 4200: Life-calk: 292: Surface Preparation. Follow the manufacturer instructions for prepping the surface before applying sealant; some manufacturers have primers, notably Sikaflex. Compare. Curing; Curing may take days, depending on the material, air temperature humidity-most urethane sealants actually cure in the presence of moisture, which is why they’re excellent for emergencies underwater repairs. Designed for marine applications above and below the waterline. In addition, its flexibility allows for dissipation of 11. timing: posted 07-27-2007 12:34 AM ET (US) Life Calk Type H Part A: 0053: 04/20/2015: Download: Life Calk Type P & H 2 Part Black Part B: 0006: 06/05/2015: Download: Life Calk Type P Part A: 0054: 04/20/2015: Download: Life Calk White: 0001: 05/02/2019: Download: Life Restorer Wax: 0032: 07/07/2015: Download: Life Seal Aluminum: 0041: 05/02/2019: Download: Life … Surface preparation; Clean well to remove dust, wax oil and all contaminants. Ideal for teak decks, to bed deck and hull hardware, seal thru-hull fittings, and … Another thing to remember is that a new boat has dry fresh wood in the transom (unless composite) which will be fine with any approved sealant. 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. LifeSeal is a polyurethane/silicone combo which appears to be somewhat more adhesive than regular silicone (Both 3M's or BoatLife's Silicone Sealant) and somewhat less adhesive than polysulfide (3M 101 or BoatLife LifeCalk) or Polyurethane (3M 5200, 4200 and 4000). Very similar to 3Ms 4200 and Sikas 291, the polyether Loctite Marine Sealant is a thick, medium- to fast-cure product intended for use above and below the waterline. Life Seal® Sealant 20 fl. Below is a list of the most common sealants you will find in a chandlery. Disadvantages; Any trace of silicone will cause problems with paint. You get what you pay for at least sometimes. It is fairly thick so it does not pour out of a joint. Without proper surface prep any caulk will not live up to its potential. Not for polycarbonate, acrylic, ABS, and PVC Although PU attacks plastic, Polysulfides also possess excellent resistance to petroleum products. I was planning to use 3M 4200 but will take a close look at Life Caulk or Life Seal as an alternative. Jamestown Distributors presents 3M 4200 Fast Cure Marine Sealant. Home improvment Caulk; These tend to be cheaper, what a surprise, however many of them are acrylic based and do not have the adhesive qualities. Joined Nov 13, 2009 Messages 958 Reaction score 141 Points 43 Location Homosassa, FL Model Seafarer Feb 13, 2018 #12 Silane-modified ­polymers (SMP), like 3M 4000UV, and polyethers, like Star brite Boat Caulk or West ­Marine Multi-Caulk, offer good ­adhesion while still being ­removable, but UV rays won't ­discolor them. After my current project of replacing the plywood under the floor, this is a must. Examples; 3M; 5200 & 4200, Sikaflex 292, Sikaflex 291. Manufacturers Examples; 3M marine grade silicone sealant, Boatlife silicone rubber. You want to use the polysulfide below the waterline or a straight polyurethane caulk like 3M 4200, 3M5200, Sika 1A, etc. It forms watertight, weather-resistant seals above and below the waterline. This is probably the best solution for most things that need an adhesive and sealant. Apply bond breaker. This page is dedicated to caulking products. A good caulking compound that has a combination of adhesion and is flexible. Are you wondering what suitable marine adhesive sealant to purchase? 17 ($2.86/Adhesive) $24.86 $24.86 Used boats may have dampness in their wood transoms and need a sealant such as Life Caulk that cures in the presence of moisture, otherwise regular sealants may not cure fully or seal correctly. Powered by: Ultimate Bulletin Board, Freeware Version 2000Purchase our Licensed Version- which adds many more features! Disadvantages Solvents in Polysulfide and Polyurethane will soften some plastic, Do not use with Plexiglas or Lexan ports. for pricing and availability. There are 2 types of silicone; One is based on acetic acid (vinegar smell), while the other is ammonia-based. BoatLife Liquid Life Sea, SeaDek coamings are made from EVA foam which is used in many non skid applications. Life-Calk Cartridge - WhiteA long lasting, permanently flexible marine polysulfide sealant which can be sanded, painted***, and used above and below the waterline. They are applied like tooth paste. Polyurethane and silicone formulated for use on fiberglass. Polyurethane yellows in the sun. Without proper surface prep any caulk will not live up to its potential. We bought a small tube of 5200 for a few high-load, really critical fittings. Silicones can be used with almost any material and is an excellent insulator between metals. Skin-over and cure times are similar to fast-cure polyurethane. Viscosity; Viscosity of Caulk tends to be like treacle. In this day and age, your deck equipment and hardware is…, DrSails Adhesive is an epoxy adhesive developed to repair and mount various applications on a…, Outboards, I/Os Trolling motors & Brackets, Propellers, shaft systems, Jets, trim tabs, Less aggressive than straight polyurethanes, Not for fittings that may need to be remove, Polyurethanes not UV stable unless stated. Forming watertight seals, 3M marine adhesive sealant 5200 fast cure offers permanent adhesion to wood, gel coat and The table below breaks down typical maintenance projects into categories above and below the waterline, with the recommended products from major manufacturers. If you need to get sealant in a hard to get to spot, this sealant will flow. If you cut further down the nozzle you can apply the Caulk quicker, or if you just want a small amount of Caulk cut closer to the top. 3M Marine Adhesive Sealant Fast Cure 4200 (05260) – Semi-Permanent Flexible Adhesive Sealant for Boats and Marine Applications – White – 3 Ounces 4.7 out of 5 stars 686 $17.17 $ 17 . Modified Polyether Sealant. For deck seams, Boatlife Polysulfide caulk. Surface preparation; Clean well to remove dust, wax oil and all contaminants. Marine Caulking Products Guide will help you understand the difference and properties of the caulking options available and where to use the. We find this product exceptional when it comes to bedding chain plates and stanchion bases, but is suitable for many other applications. search | FAQ | Bear in mind 700psi could tear apart fiberglass when removing a fitting. Application; Most Caulk comes with thier own dispenser. 3M™ Marine Adhesive/Sealant 4000 UV is a one-part adhesive sealant that cures to form a firm, rubbery waterproof seal. It gives measurably better adhesion than silicone and yet, unlike most polyurethanes, can be removed without damage to gelcoat. In some cases you could sand with 180 or 220 paper. Tube $ 14.42 Select options. In some cases you could sand with … On 3M’s website, they give you some clues: From the 3M 4200 page: “…Forms a watertight seal on joints and boat hardware above and below the waterline. Adhesive by the numbers; This chart gives you an idea of the difference between the types of major caulks. After doing the above, I slather the screw threads with silicone before installation as an additional seal. It's their brand name for polysulfide. Butyl tape is very easy to use Temperature; sticky in warm, hard in cold Butyl is a flexible gasket Butyl tape is convenient to use Butyl is NOT an adhesive Do not use where bonding is required, No curing, waterproof immediately. Life Seal is a hybrid caulk made of silicone and polyurethane. Small tubes have nozzles that screw on the top. Silicone runs the risk of contaminating surfaces to be painted or varnished. A synthetic rubber with excellent adhesive properties. Sealants form a watertight and airtight seal between two or more surfaces Life-Calk 10.6 fl. Clean joints and wash with Life-Calk Solvent and Cleaner. One part of this adhesive marine sealant does not necessitate mixing at all and it is capable of ensuring very fast cure which is mere… Forms Tough and flexible permanent bonds. I once removed a through hull transducer that was bedded with 5200. Best use is at 70 degrees. Stretch or Elongation; Elongation is a measure of Stretch. When fully cured, this high strength marine adhesive remains flexible and suitable for use where shock, vibration, shrinking or swelling are concerns. Life Seal Sealant offers better adhesion compared to silicone, but still allows parts to be removed without causing damage to gelcoat. If you seal the hole with epoxy as Richie suggested, all you need is Life Caulk or 4200. image via bostik. EVA…, Classic Marine hardware supplier. Model #80600A. oz. You usually don't have enough room to work. Tack-free in 1 to 3 days, excellent resistance to teak oils, gasoline, and diesel fuel. Polyethers PE; 3M 4000 is an example and are new and have very good UV resistance. This demo highlights 4200's function as a quick sealing adhesive. Silicones are inert synthetic polymer compounds. Its superior $ 26.20 Add to cart. Boat Life’s Life Calk provides a long lasting seal that stays flexible through out its lifespan. The best choice for most deck fittings except plastic, Examples; 3M Marine Sealant 101 Life calk by Boatlife. Compare. Apply BoatLIFE Life-Calk Primer. profile | register | author help. It demonstrated a wide range of compatibilities and very high strength in tests. I used the … 100% Silicone All-Purpose Sealant 10-oz White Silicone Caulk. oz. It forms watertight, weather-resistant seals on joints and boat hardware above and below the waterline. Apply Life-Calk with a hand or air operated caulking gun, putty knife or trowel, … Excellent for hull to deck and hull to keel joints. What you gain with 4200 is a strong adhesive that is still flexible enough to expand/contract/flex. A fast curing, one-part polyurethane that chemically reacts with moisture to deliver strong, flexible bonds to wood, gelcoat and fiberglass. Doc Stressor Well-Known Member. PU Polyurethane is the sealant when you are looking for a permanent bond. Primary used as sealers, with little bonding capabilities. Bottom line: This tied the Sika 291 as the Best Choice for an adhesive sealant. Compare. You can cut the nozzle to apply the caulk. The one thing I've never had though is a leak after I installed it. I've had bolt holes that were drilled oversize, undersize, off center, you name it. I've used a variety of sealants including silicone, life caulk, 4200, 5200, and maybe a few brands I've forgotten. Chubb $ 53.23 Select options.
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