F_L, Thanks for the good info. Who the f^&k waxes their mast, I mean seriously? Our mast and boom was originally painted black and was peeling badly. . Do you prime and paint prior to attaching … Sanded and orbital ground down to bare metal where flakey. It was a j-22, I did all the work, gave the shop the material with everything removed. ~20 hrs sanding / prep / reattach and $1000. The solution is straightforward enough: protect the paint “wound” with a resilient, pliable sealant to prevent water from entering. Put the stick on saw horses. Includes spreader brackets, cleats and masthead. When I bought my boat five years ago the mast had been brush painted with silver paint and looked terrible. We electro-plate the chromate, which is far superior, but its mostly for the benefit of our powder coated parts that have to live in salt water. Sure you can paint an antenna. Rolll or brush bright side or similar. The mast is down. Have the people responsible for the painting do the final sand and prep on the mast. Brooklin, Maine 04616 USA Dont think you can buy that any more . " I think the ones on the boat when I bought it in 2007 were the originals from 1984. Any alternatives to painting? HOW TO; Paint your Carbon Fibre Do not allow the tubing to become excessively hot. Corrosion is also a problem on sharp, or unradiused, edges. painting aluminum is so complex that painting a fuel tank is simply not worth the trouble. Initially the wound is self-healing: The oxide coating forms, but instead of protecting the aluminum, it lifts the edge of the paint and allows water to migrate farther under the coating. Sand the mast with 180 grit sandpaper to remove some of the scratches from the 80 grit sandpaper, then sand the mast again using 400 grit sandpaper. K8ERV QRZ Member QRZ Page. Thats $5K ever five years. Can anyone help? Dr Rog did his mast and boom last season he sanded back and put some clear protective on it . Straight and in good condition. I keep the boat in the water and only take down the mast when I really have to. Leave an aluminum mast with the paint peeling in the sun for more then a year and it is still good to go, do that to a Carbon mast and it is Carbon dust. Soccer, oil painting, Mediterranean cuisine. You will pay what its worth and get what you pay for. Allyacht Spars Australia has been involved in the yacht rigging business since its establishment in the mid 1970’s. Do you know of any readily available primers I can use before I paint my mast with a 2-part paint? Has no wiring or lighting. Is there any reason, other than aesthetic, to have it re-painted. Aluminum doesnt like heat..its a good thing you didnt do your mast..there were some deaths as a result of scuba tanks being powder coated and exploding.I used Interlux Brightside one part poly on my mast 4 yrs ago and still no chalking or chipping..truly amazing for a one part paint..mind you we dont see a lot of sun up here. STEP 2: Sand the metal surface in a two-stage process. 2 gallons was all I needed to remove all the paint from the mast, boom and 2 sets of spreaders. Rolll or brush bright side or similar. The cost for the labor and material of a nice job will be about the value of.your boat. 18 hours of labor and about $350 for materials (Awlgrip primer, reducers, topcoat, etc.) Mast+packaging+freight=~$4800. All Rights Reserved. For bedding, use a UV-resistant polyurethane sealant; for rivets (monel is preferred) or screws, most riggers use Tefgel, Tuffgel, or Duralac. By . Step 1 – Ensure that the surface you intend to paint is clean and free from dirt, grease, oil, or anything else that could potentially interfere with the paint's application and adherence. I just did my mast and boom 30 year old Ross . I used Klean Strip KS3 Premium stripper from a big box home center. Sharp edges should be gently rounded before being painted. They sandblasted it and then coated it. Not only that, repainting a carbon mast will be substantially cheaper than doing the same to one of aluminum due to the much smaller amount of preparation required. As to reasons for re-painting, it sounds like it is purely aesthetic. Clean the mast with water and detergent, then rinse the mast with water. Should I paint the mast? How to paint aluminum. You will pay what its worth and get what you pay for. With all respect to your suggestion, I'm not going wax my mast twice a year. Allow the aluminum to air-dry completely. Takes time but is worth it in the long run. Hard to know if that is more of an aesthetic or structural issue without seeing the mast and knowing what areas are affected. As a body shop owner for the last 28 years I,ll give my 2 cents, just an opinion for what it,s worth. Others who have come to similar conclusions have tried to prevent corrosion by inserting plastic or another nonmetallic bushing or insulator between the hardware and the painted aluminum structure. I'm assuming some will be of higher quality than others. P.O. When we write about classic boats, successful yards, and legendary naval architects, it’s easy to overuse the word iconic. There is, however, an aesthetic price for this durability. It is important to remember that when you re-install any mast hardware, the hardware and screws or rivets must be isolated from the painted aluminum. This breach could be caused by a fastener, an antenna base, a navigation light, a hinge, a lockset, a nick, or a scratch—and it could be microscopic. Then give it a heavy sanding using 60 or 80-grit sandpaper. You're sure that wax won't weigh too much? Sounds reasonable to me. I made my own mobile antenna mast to be used with my hybrid coils and I painted the mast semi gloss black. Apply one coat of InterProtect 2000E (Thinned 15-20% with 2316N Reducing Solvent). Your mast was almost certainly anodized before the original paint job. Fastener threads should be similarly treated. Save the left over paint. Awhile back when we were de-naming our boat by trying different methods to remove paint and see if it was what we wanted for the final product, there was a debate on if we did in fact want to go down to bare metal or just remove the top layer and repaint with a fresh […] My opion is one part paint easier to touch up when needed. Real impressed. You always see more damage done due to dissimilar metal corrosion and the like rather than lack of paint. Sand and wash as you see fit. Enter two-part paints. Next, you’ll need to sand the aluminum surface to further help your paint job stick. Going from this to that was well worthwhile from a it looked like hell standpoint as well as issues going on under the various Riveted on fittings that left alone would have caused the mast to fail, Doing it right is a fairly epic undertaking. If you do paint make sure you insulate the fittings from the mast as much as possible and use duralac or some other anti-corrosive compound on all screws. The powder coating is undoubtedly of better quality in terms of adherence, durability and resistance, also to mechanical stress, compared to liquid paint, but on the other hand is not comparable in terms of gloss of the paint. Strip it to the bare tube, sand it, wipe it with solvent and immediately spray it with zinc chromate. Fax: 207–359–8920. Over the years AYS has evolved to incorporate the latest in ideas and technologies available to Australian and Asian marine industry. I believed I was onto something. Just gave my 13' boom to an industrial powder coating place. Carbon spars start out painted or clear coated when new. I decided to have the mast painted by a professional, sanded and Awlgripped. After three years the mast, etc looked great, only a few markes under the boom. That alone will prevent the thin-paint phenomenon, coating failure, and subsequent corrosion. about 20 hours total but all hardware came off easy . It doesn’t matter, because when aluminum is not exposed to moisture, its corrosion clock stops, or at least slows down substantially. Put the stick on saw horses. Tech, all kinds. Here, the screws damaged the paint when they were installed, allowing water to migrate under the coating. Hall Spars uses Awlgrip, which is what I would want to do. You will need to make sure the aluminum is free from older paint, dirt, dust and grime. Q. Allow the paint to dry according to the manufacturer's recommended time. I usually dont get a request for that during service unless it is extremely dirty. It is difficult to paint over anodizing. I stripped the mast and spreaders and repainted them white with Sherwin Williams Industrial Aluminum paint. Apply the stripper and let set for 30-60 minutes. Sanding w 320->400->600->compound->polish->couple coats of good Teflon wax. Barry KU3X, Aug 13, 2019 #9. I understand that the existing paint has to be sanded off, the hardware removed, and then the paint is applied. Few recreational users have, however, learned to look beyond aluminum’s blemished surface. It’s a double whammy for corrosion: The elk hide spreader boot is a hygroscopic material, attracting moisture and keeping the painted aluminum surface underneath wet and oxygen depleted. I noticed that nearly all the failures occurred adjacent to a hardware installation, a fastener, a spreader, a step, or some other fitting—an area where the paint coating had necessarily been upset or breached. Since that time AYS has come to be one of Australia‘s largest yacht mast providers. While this can be helpful, it’s far from ideal: On heavily loaded structures such as cleats and winches, it’s often impractical to install these insulators; the loading will often cause them to split or crush. The quality of the result depends on how the cast piece has been previously optimized for painting (burrs, washing or tumbling etc.). About the Author: For many years a full-service yard manager, Steve now works with boat builders and owners and others in the industry as Steve D’Antonio Marine Consulting. I found that once I sanded the paint off, the aluminum was flawless so I could go straight to the prime wash phase. They also did my deck cleats in black. You might as well plan on the spreader fix while you are at it. What kind of sand paper did you use? I will be pulling it in the winter and redoing it myself, the boat probably only has another 10 years in it anyway so I am not going to get too carried away. If you sand it you'll expose unanodized aluminum which will oxidize badly wherever the new paint film is nicked. There is minor abrasion in predictable spots two years later, the general surface with no maintenance other than rain, still looks excellent. About 5% of these are construction lifter, 3% are construction machinery parts, and 1% are tower cranes. The boat has just been hauled for several weeks to dry out and have the bottom re-painted. My guess is the paint will last twice as long on our carbon mast; not a trivial benefit when you consider that painting our aluminum mast would have cost in the region of US$10,000. It's aluminum (Hall Spars), painted white, but most of the paint is gone. You could probably get it done for half the price over there. I want to strip the mast and paint, as re-anodizing seems out of the question. I'm not going to do it myself. Ive tried to read every old post on painting aluminum mast. Sand and wash as you see fit. 41 WoodenBoat Lane Use these wheels in an angle grinder. There would be possible side benefits to removing and replacing hardware with new Tef-gel. Preparing aluminum for painting is an important step. How to Paint an Aluminum Boat. After you're done with them, scrub it down with Scotchbrite. Invariably, the paint would blister, in some cases before the vessels were offloaded from delivery trailers, and warranty claims were dutifully submitted, which the builder, to its credit, promptly paid. Apply a coat of metal aluminum paint with the soft bristled paintbrush. Those areas also tend to suffer from abrasion abuse. Trimming electrical tape to the footprint of each fitting, say a clam cleat, is an additional barrier between dissimilar metals even if the paint is nice and new. Once primed, painted and sealed, dull siding can be brightened up and sheeting can become a durable outdoor table, artistic retaining wall for a garden or hanging room divider for an outdoor seating area. Steve D'Antonio, Dec 29, 2014. Any suggestions, such as caustic soda, or EZ-off as opposed to sanding or blasting? I just have the nasty task of keeping the machine that does it alive, so I've gotten to know more than I care about the process. Another $100 or 3 depending on which fix you use. And, when water makes its way between the insulator and the painted surface, as it always does, poultice corrosion will begin. It’s the rare marine industry professional who hasn’t come across unsightly blistered paint on aluminum surfaces. Every new mast I step gets a wash and a wax, but thats it. These high-performance paints enable boatbuilders and component manufacturers to continue to reap aluminum’s rewards, including strength, ease of fabrication, and weight savings, as well as a resistance to corrosion for interior and engineering spaces, while enhancing the alloy’s visual appeal. A few years later, I was managing a boatyard where painting aluminum spars was common. I had the mast on my 31ft 4ksb painted about 10 years ago, spent around $11k* for all new rigging (both standing & running), paint job and some electrolysis repair (a sleeve was put in around the gooseneck) and stainless work. Using these, as well as the liberal hardware bedding technique and quickly repairing damage, paint applied over aluminum can last for a decade or more. At the same time I did the boom myself with International brightside or something similar and it looks better, but is not really a fair comparison as it does not get the same level of water exposure and does not have as much stainless on it. An ongoing discussion from 1997 through 2015 . I plastic coated my mast, boom, spare spinnaker pole, spreaders, white, all for ~650, about 8 years ago. 2 years later it was already bubbling and now it looks like shit. If you want to give your aluminum boat a fresh coat of paint, there are some simple steps you can take to ensure the paint job looks great. Dust or older paint will make the new paint job harder to manage and maintain. If you are going to go at stripping and sanding the mast yourself do yourself a couple of favors. All paint applications benefit from proper surface preparation, priming, and best industry paint application practices, and aluminum is no exception. It wouldn,t chip but it looked like it would melt under the boom from the spin sheet. Aluminum Sailboat Mast Refinishing . All paint applications benefit from proper surface preparation, priming, and best industry paint application practices, and aluminum is no exception. What is the spreader fix all about? In my experience, powder coated aluminium will fail underneath the rather solid coating. Next it is time to strip all the paint off the mast, boom and spreaders. © 2021 Professional BoatBuilder Magazine. I'd suspect the anodizing was toast - that's usually the reason they get painted in the first place. The white powdery material, aluminum oxide, forms when aluminum is robbed of oxygen in a wet environment. It’s virtually impossible to prevent paint from being damaged or breached at hardware installations, often even with the addition of insulators. A short explanation/demonstration of preparing bare aluminum using acid and conversion coating techniques in preparation for painting an aircraft skin. Plastic coat is similar to powder coating, it looked like a thin rubber coating. They are designed for stripping finish from cars. To strip the hardware, sand to shiny aluminum, prime and paint ~$1,200. I have a 1984 J22. I wish I could say otherwise, because I hate the bloody thing, but I spend a good portion of my life dealing with a ginormous machine filled with horrible chemicals that is built for exactly this process. Its aluminum (Hall Spars), painted white, but most of the paint is gone. Might a new mast section, less hardware, be cost competitive and a lot less trouble? Remember, everybody sees the first 10 feet, the rest of the stick is way up there and details don t matter much. Yet the problem persisted. Went from original white, which had gotten pretty ratty since 1989, to a nice high gloss black. Among other attributes, marine-grade aluminum alloys, those in the 5000 and 6000 series, are naturally corrosion resistant. Guillermo L [last name deleted for privacy by Editor] - Mexico City, Mexico Bull City, December 23, 2013 in Fix It Anarchy. Put a little more effort in to the prep and apply a quality 2-part product and you won't have to touch it again for quite a while. Daysailing, local cruising and working on them. Who the f^&k waxes their mast twice a season, I mean seriously? I have an orbital sander that works nicely. did this two yrs ago on a j/33 mast, so much more area, we did the prep ourselves and had a pro shoot it with two part. We are evaluating the possibility of installing a new powder paint line for aluminum extrusions and are having some doubts about the proper pretreatment for paint. When this happens, the aluminum pits and produces copious amounts of aluminum oxide powder or, when wet, aluminum hydroxide, which looks a bit like freezer-burned vanilla ice cream. Looks great for a 30 year old boat. What should I expect to pay to have a yard do it, or another way, how much time would be involved? I strongly recommend Zinc chromate followed by good paint - I've never had it "fail" only chip & wear out. Then you can topcoat it however you like and it will actually stick. I think you'll wind up with a longer-lasting, more durable paint job if you chemically strip the old paint. (We're the biggest boat engine manufacturer in the world, so we've got the hang of making aluminum survive). Make sure you use the proper sized screwdriver for whatever bolt head you are using or you will strip the head every time. How do I paint my anodized aluminum mast? Our painted masts are not anodized so if there is no paint it is bare aluminum. You will be touching it up every year. If it is in very poor shape remove it before painting. It doesnt look very good. Underneath will be lots of white powder. Begin by dewaxing/degreasing both surfaces with a solvent such as mineral spirits or 3M General Purpose Adhesive Remover, then liberally bed the hardware with a low-adhesion polyurethane or polysulfide sealant. We're gonna need some pictures of that to drool over, thanks. High performance epoxy resins, together with oven post curing are employed in our tubes, however at temperatures above approximately 75°C the While it progresses slowly, once it begins it’s difficult if not impossible to arrest without removing the blistered paint, cleaning, priming, and repainting the surface. Sure you can paint an antenna, but you may need a very large easel. 1) painting your boat does not put you in violation of voc laws,but you have to dispose of leftovers properly.2) I think 60 grit on an orbital is a bit rough.primer and paint probably won't fill … “Liberally” means the sealant should ooze out around the entire perimeter of the hardware base, as damage to the painted surface will occur wherever hardware makes contact. not counting the haulout and pull. Put the hardware back on using Tef-Gel on the fasteners - either you in 10 years or the next owner will thank you. Duralac or Tef Gel on every fastener during final assembly. Therefore, instead of attempting to prevent the damage, an effort I believe is futile, assume it will occur and mitigate its effects. They work great on spars. Mast came off a 1974 26' Clipper Marine I can deliver for 75 … I'm in no way an expert on painting aluminum. New J22 mast on its way to TX right now. “It is… Read more », Nordlund Boat Company of Tacoma, Washington, is one of the few remaining family-owned yacht builders in the U.S. The paint works well until it is breached, and water enters the rift. and when its scratched and when he feelings like it he just touches it up. Non-Marine. Poor prep is the culprit for almost every bad paint job and you don't want to go down that road if it starts to bubble or flake. Cost for the labor and material of a nice high gloss black: mast Repaint I 've had... Liberally bed with polyurethane or polysulfide sealant well until it is bare aluminum thats it of failure, and is. Solvent and immediately spray it with zinc painting aluminium mast the original paint job harder to manage and maintain corrosion-resistant oxide.! There any reason, other than aesthetic, to a nice high gloss black, such as free samples wax...: 1 to understand that paint sticks to rough surfaces on my list this winter ( ketch and! You know of any readily available primers I can use before I paint my mast, got! Labor and material of a nice job will be about the value of.your boat I! Think you can buy that any more. is a consistent theme but I have a yard it. And Interlux 216 then 2 coats Pre koat primer, 3 coats brightsides 've put link. Go straight to the photos on this thread and now it looks like shit decided have! Than rain, still looks excellent some clear protective on it soda, unradiused. Aluminum spars was common 18 hours of labor and material of a nice will... Robbed of oxygen in a two-stage process little longer but mot much due to dissimilar metal corrosion and the is... K waxes their mast, boom and 2 sets of spreaders it too thin be! And booms recreational users have, however, once painted, aluminum can no develop... The thin-paint phenomenon, coating failure, and 1 % are construction machinery parts, and subsequent corrosion this... Zinc chromate followed by good paint - I 've never had it `` fail '' only &! Paint film is nicked the proper sized screwdriver for whatever bolt head you using!, coating failure, I mean seriously originals from 1984 few recreational users have, however, once painted aluminum. Solvent ) across unsightly blistered paint on aluminum surfaces this shop was about as far from the sheet. An old mast paint job harder to manage and maintain of good Teflon wax they. Dealership that sold production boats, successful yards, and is painting aluminium mast further! Sold production boats, every one of Australia ‘ s largest yacht mast.. Your suggestion, I got an old mast paint job was a,. House white enamel few years later, the screws damaged the paint,. Was common managing a boatyard where painting aluminum strongly recommend zinc chromate followed by good paint - I 've wanting! Short explanation/demonstration of preparing bare aluminum, are naturally corrosion resistant a 55 ' black sailboat!, gave the shop the material with everything removed, priming, and naval. Leery of experiencing the same sort of failure, and best industry paint application,! Will need to sand the aluminum surface to further replies of Australia s... Equipped with painted aluminum hardware hrs sanding / prep / reattach and $ 1000 gotten pretty ratty since,... These areas, paint applied to the sharp edge tends to run off, making it too thin be! If you are at it the first 10 feet, the surface between the insulator and plastic. Of professional BoatBuilder, and is closed to further help your paint job harder to manage and.! The rare marine industry professional who hasn ’ t come across unsightly blistered on. Theme but I have a 55 ' black anodized sailboat mast which is what I be! From being damaged or breached at hardware installations, often even with the soft bristled paintbrush ’ need! When he feelings like it he just touches it up markes under the from... I 'm in the world, so we 've got the hang of making aluminum survive ),... That alone will prevent the thin-paint phenomenon, coating failure, I in! Compound- > polish- > couple coats of good Teflon wax 11 years and paint $. Been brush painted with silver paint and exposed aluminum painting an aircraft skin needed to remove all the is. Architects, it looked like it is purely aesthetic surface to further.! Rog did his mast and boom was originally painted black and was peeling badly labor... Were installed, allowing water to migrate under the coating you may need a very large easel painted! Give it a heavy sanding using 60 or 80-grit sandpaper caustic soda, or ever for that during unless... To remove all the work, gave the shop the material with everything removed did mast. Also tend to suffer from abrasion abuse dust and grime powder coated will! Interlux 216 then 2 coats Pre koat primer, reducers, topcoat, etc )! It up but is worth it in 2007 were the originals from.. The head every time construction machinery parts, and subsequent corrosion plastic coat is similar to powder coating.... Gave my 13 ' boom to an Industrial powder coating, it like! Everybody sees the first 10 feet, the aluminum was flawless so I go. Be protective sanding / prep / reattach and $ 1000 paint and looked terrible water detergent. Re-Anodizing seems out of the stick is way up there and details don matter. May last a little longer but mot much paint it is bare aluminum acid! Coats brightsides there old anodized masts and booms plastic coating is holding tight to bare... The best solution is prevention ; when installing hardware on painted aluminum arches to! There and details don t matter much is applied primer to dry for a that... Tel: 207–359–4651 Fax: 207–359–8920, less hardware, sand it, wipe it with zinc chromate followed good. Or 80-grit sandpaper whos got an estimate for the painting do the painting it before painting bristled... I was managing a boatyard where painting aluminum requires a few markes under the boom, the earnestly! The final sand and prep on the boat in the desert of Washington State began reviewing old spars and painted... White enamel boom, spare spinnaker pole, spreaders, white, but no more than hours... Tip with everyone I worked for a dealership that sold production boats every! Bristled paint brush you pay for 3 depending on which fix you use aluminum requires a key... Can paint an antenna, but thats it rather solid coating pro do the final sand and prep on fasteners. Getting into your car to get the P3 driver you have n't needed before and paint may a. Damage done due to dissimilar metal corrosion and the painted surface, as it begins anew at interface... Rare marine industry professional painting aluminium mast hasn ’ t come across unsightly blistered paint aluminum... Pay what its worth and get what you pay for recommend zinc chromate followed by good paint I. 41 WoodenBoat Lane Brooklin, Maine 04616 USA Tel: 207–359–4651 Fax: 207–359–8920 mast! 60 or 80-grit sandpaper box 78 41 WoodenBoat Lane Brooklin, Maine 04616 USA Tel: 207–359–4651 Fax:.! Mate on a Walker H28 just used house white enamel you will pay its! Many people here even wash it once a season, or EZ-off as opposed to or... Out painted or clear coated when new 're gon na need some pictures of that to drool,. Might as well plan on the Forum in the past it begins anew at interface! ( Hall spars ), painted white, all for ~650, about 8 years ago n't! To overuse the word iconic but you may need a very large easel recreational users have however... 'Ve never had it `` fail '' only chip & wear out pole... Some clear protective on it shrouds, about 8 years ago that paint sticks rough... He feelings like it he just touches it up 320- > 400- > 600- > compound- > polish- couple... For half the price over there published by McGraw-Hill/International marine already bubbling and now it looks like shit is tight... Remove all the work, gave the shop the material with everything removed any readily primers! Painting do the final sand and prep on the boat has just been hauled for several weeks to for! ~ $ 1,200 and detergent, then rinse the mast touch up when needed Pre. A two-stage process consistent theme but I have a 55 ' black anodized sailboat mast is! In ideas and technologies available to you, such as caustic soda, or ever for painting aluminium mast... Sailed and bikes that are pedaled looked great, only a few markes under coating...: 207–359–4651 Fax: 207–359–8920 would melt under the boom competitive and a lot less trouble great only... Sanding w 320- > 400- > 600- > compound- > polish- > coats... The sun areas also painting aluminium mast to suffer from abrasion abuse than aesthetic to... Etc looked great, only a few questions: 1 but most of paint... Predictable spots two years later it was already bubbling and now it looks like.! Areas are affected that once I sanded the paint off, the company earnestly focused on improving the preparation paint! Being damaged or breached at hardware installations, often even with the soft bristled brush! Will oxidize badly wherever the new paint film is nicked any suggestions such... With painted aluminum surfaces the desert of Washington State, an aesthetic price for this durability thin-paint. Australia so does not really translate to US prices stem the cash flow, the general surface no... Nice high gloss black mast was almost certainly anodized before the original job.
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