When cracks are found, they need to be dealt with and filled in. Boat maintenance and repair expert and master youtuber, andy miller, is. There are many ways to repair cracks in fiberglasswhich ones the best. We do custom fiberglass restorations and repair for your boat. How to repair deep cracks in fiberglass boats youtube. Stress cracks should always be dish ground and fiberglass laminated using 2 or 3 strips of biaxial cloth with matt sewed on the back. If they really need to be fixed to keep the boat from absorbing water, can i just sand the whole thing and roll a layer of epoxy over everything. Repairing hairline cracks and how to do repair gelcoat. Best method to repair stress cracks boat design net. Fixing fiberglass stress cracks with andy from boatworks today. These are the easiest cracks to fix as theyre not very deep.
Fiberglass and gelcoat repair my clean boat lake ozark, mo. How to fix spider cracks in fiberglass it still runs. The stress can cause minor spider cracking, but it can also cause bulges and severe wall cracks. It is important to grind them out, fill with glass and resin polyester in this case, and sand smooth. Spider cracks in gelcoat moderated discussion areas.
Hairline spider cracks must be opened wider and filled with an epoxy filler to be permanently repaired. This boat is 2 years old and to be honest i never expected to find something like this. They may indicate whether something inside the boat has broken loose and caused the damage or if it was caused by something hitting the boat from the outside. The cracks run the whole length of the joint on both port and starboard side. How to fix crazing in gelcoat, also known as spider cracks or stress cracks which plague countless boaters. Possible causes of fiberglass pool cracks home guides. Stress cracks, spider cracks, and hairline cracks in the decks of older boats are, of course, not rare. How to repair spider cracks on your fiberglass boat. Magicezy hairline fix is a revolutionary precolored fiberglass and gelcoat repair product that fixes and colors fine stress cracks spider cracks, and hairline fractures fast in one application.
Stress cracks, finishes and surface defects on boat mid. Crazing is an incredibly common issue on modern fiberglass boats, and although it usually starts off as a matter of cosmetics, in severe cases these surface cracks can grow, deepen, and eventually threaten your boats structural integrity. I have not had the boat for a while, i got it through a trade. For this reason, fiberglass boat owners need to constantly monitor their boat for cracks. It also repairs cracks in ceramic tiles and scratches on household appliances. Hes taken an old bertram moppie powerboat epic yacht, if you ask me and many others and is redoing someone elses restoration. This show covers how to repair fiberglass stress cracks on your boat using polyester resin. How to repair deep cracks in fiberglass boats with the new west system fiberglass boat repair kit. They may indicate whether something inside the boat has broken loose and.
Theyre not affecting the integrity of the boat, so dont stress out pun intended if you have a few. This video is part 3 of a series on fiberglass that focuses on how to repair a very common type of damage in preparation of applying a new nonskid surface using awlgrip paint. Mid size power boats focuses exclusively on fiberglass power boats of the cruiser class generally 3055 feet, with discussions on the pros and cons of each type. If, however, the spider cracks appeared at an attachment point or in a highstress area, theres a good chance theyll simply return after you fix them. Magicezy hairline fix demonstration how to repair stress. The spider cracks and crazing you see here is probably only in the gelcoat. Stress cracks if an owner calls cracks, stress crack, he is letting you know there is a problem. Im wondering why it happened and what else could be the issue. Crazing in gelcoat, also known as spider cracks or stress cracks, plagues countless boaters. The boat is in pretty good condition for its age in my opinion, but the hull does have some minor hairline stress cracks. If this has occurred, contact the manufacturer or a. And while an aircraft isnt subjected to the same type of forces as a boat hull, the fuselage is the hull and must be strong in different ways. When looking at cracks you may find that there are generally two different types. Gelcoat oxidation can sometimes be repaired, but if the damage is extensive the gelcoat must be removed.
Give us a call, were confident well exceed your fiberglass repair expectations. On top of the stress cracks in the hull there are numerous other ones throughout the boat but this is the most alarming. Hull showing cracks skeeter boats indepth outdoors. The cracks can also point to a structural defect that must be corrected. Fiberglass and structural repair starboard marine repair. Small cracks and flaws in panels can be a result of highstress concentrations and flexing. Hairline fix is the easiest, most durable way to repair scratches, scrapes, stress cracks, spider fractures, and crazing in fiberglass and gelcoat surfaces.
These fiberglass cracks can be purely cosmetic, or can severely degrade the boats ability to stay afloat. Repairing hairline cracks and how to do repair gelcoat magicezy. Small cracks forming, especially at the surface of the fiberglass. Stress cracks are a commonly occurring phenomenon with reinforced plastic boats.
Im pretty sure the seat pan is gonna have to come out soon to be reinforced. Over time, the gelcoat can fade, oxidize and become pitted and dented. Boat fiberglass lamination construction is a fine art between to thin and too thick. Yet, because the surveyor encounters so many boats with stress cracks on the. Instead, modern fiberglass boat hulls relay on a limited number of major girders. Anyone who has ever seen airframe construction, particularly jet aircraft, understands why aircraft can be built with skins that are extremely thin. Qc owner randy qualls has deep roots in fiberglass, having spent the last fifteen years as owner and president of legend boats. Where is the stress crack is important, but unless you are 1 a skilled boat surveyor or 2 the boat is cheap and you are not going to cause more stress, stay away. Most common location for these to occur is on corners and radiuss where the layup of fiberglass is typically thinner, and the amount of resin is usually more than what it should be.
The seller realized it after about 3 times out on the boat after he bought it. Vibration and impact on the fiberglass can cause stress and fatigue. Strain on the transom sometimes can lead to water leaks, rotting, cracking, breaking at stress points and other structural damage. Cracks spreading out from the center, much as you would see in a spider web.
If the material is too thick it will shatter like window glass, it. Make a boat build your own boat diy boat wooden boat kits wooden boat plans flat bottom boats boat restoration sailboat plans free boat plans a look at what is possible when removing rotten plywood board from the fiberglass transomstern. Boat gelcoat stress cracks are a common problem within the marine world when it comes to fiberglass gelcoat boats, a. Spider cracks are a form of fiberglass damage that occurs from minor flexing or impacts. Fix demonstration how to repair stress cracks in fiberglass boats. How to repair spider cracks in fiberglass boatlife. I had ian haul out my j120 to power wash the bottom today and to my surprise there were a lot of cracks in the area between the hull and the keel. If structural damage is suspected, you should get your boat inspected by a qualified boat repairer. They can occur in any form of fiberglass, including cars, boats and swimming pools. All the cracks except for in the transom area i just noticed it the other day are spreading. Home boat design forums construction boatbuilding fiberglass and composite boat building best method to repair stress cracks discussion in fiberglass and composite boat building started by grady, jul 24, 2007.
It penetrates deeply into the pores of even the finest of cracks for ultra tough adhesion and durability. Located in the village of hastings, ontario next to the trent canal. I was always under the impression from fiberglass kayak experience that hairline cracks didnt really pose a problem. Would you consider a boat that had leaked from stress cracks that the seller says he got repaired at a reputable boat builder.
Over time, the cracks get larger and the structure may begin to delaminate andor blistering starts to occur. To diagnose spider cracks, inspect your boat and look for the following. Tips and repair methods to avoid michigan fiberglass sales. These hairline fractures also occur in boats of the mid 1970s vintage which often had thicker gelcoat layers than newer boats. Previous episodes go over other types of fiberglass. It is a very good explanation as to how and why repairs are completed.
Expresses, trawlers, motor yachts, multi purpose types, sport fishermen, and sedan cruisers. Ill be taking the boat out of the water after each use, and storing inside. They are all around the seats, cooler, rod box, and trolling motor. This damage is often caused by slight flexing of the hull. Start by wiping down the area with acetone and sanding the damaged gelcoat down to the fiberglass. Im pretty sure the stress cracks are from rough water.
This show covers how to repair fiberglass stress cracks on your boat using. Finish resin is rarely used in boat hull repairs or boat building. Try not to remove any of the fiberglass resin or cloth. If you can negotiate it in the price, the cape dory is a nice boat and may be wort.
I have a 2011 wx 1850 and when wiping it down last week i noticed the fiberglass showing stress cracks in the hull. Unless you can stop the flexing, youre wasting your time fixing the cracks. As gelcoat ages it can get hard and brittle, and it starts to crack near fittings and in highstress areas. Also, older fiberglass boats tend to have a thicker application of gelcoat which means they are more susceptible to cracking. The repair is faired out in preparation for a boat repainting. This video demonstrates how to repair these cracks. Stress cracks in fiberglass bass boats, canoes, kayaks. Online article on hull design defects by david pascoe, marine surveyor, namscms. Any crack that goes deeper than the gelcoat definitely needs attention. Magicezy hairline fix quickly and easily repairs gelcoat cracks on your boatwithout having to grind them out. Learn how to remove gelcoat by following a few simple steps. A lot of boat owners get very upset when they see these cracks, sometimes.
Spider cracks are nonstructural damage to the gelcoat of a boat. Our satisfied clients and our years of experience in the restoration of gelcoat and fiberglass guarantee our work. A lot of boat owners get very upset when they see these. Founded in 2017, qc fiberglass is a repair facility located in east texas near richland chambers lake. The very basic reason for stress cracks in a gelcoat finish is the hull or surface that the gelcoat is bonded to flexed or moved an amount beyond the point that the gelcoat can flex, so it just cracks, because the gelcoat has no structural bearing attributes. Catalyze the gelcoat and brush onto the exposed fiberglass area. If the area of gelcoat which has a stress crack right there, has fiberglass just under it, well, the hardened fiberglass will keep the water from just seeping into your boat. Fixing fiberglass stress cracks on a bertram moppie powerboat.
Fiberglass repair stress cracks boat restoration, sailboat, boat. Fixing fiberglass stress cracks with andy from boatworks today boat maintenance and repair expert and master youtuber, andy miller, is busy in his wisconsin shop this winter. Stress cracks can be identified as longer parallel surface cracks on the hull or deck. J109 j120 stress cracking in keel hull connection jboat. Most stress cracks occur in the gelcoat layer of fiberglass surfaces and can be repaired by yourself. Shaving fiberglass, new approach to stress cracks and mail call. I saw a area of many stress cracks on the port side under the bow of the boat. When you stress or impact the surface of the boat stress cracks will show up, either in the weakest locations or the locations that are overbuilt.
Stress cracks first appear as very fine hairline cracks. This includes repairing damaged fiberglass and replacing critical structural components such as transoms, bulkheads, stringers and floors. All about fiberglass boat stress cracks fiberglass boat. The gelcoat seals the fiberglass and can be left alone or painted over. Small cracks form in the outer surface of the fiberglass, spreading out from a central point like a spiderweb. The gel coat cracks are simply cracks in the cosmetic layer thats put over the top to keep the rv looking shiny. Stress cracks can help us understand what caused the damage.
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