Using sandpaper, you should be able to sand thoroughly into the depths of the crack so that the edges are smooth. Because there is no fiber in it, over time it will crack because the hull naturally flexes a bit. Spider cracks are nonstructural damage to the gelcoat of a. The easiest repair method is to sand the surface heavily and roll on two coats of epoxy primer followed by two coats of twopart linear. The texturing of the deck is dimpled, for lack of a better term. That is unless you use a spray in bed liner materail but, that will just kill the boat appeal for resale. It can also be a great hobby for anyone who has some basic carpentry experience and enjoys working with their hands. Small cracks form in the outer surface of the fiberglass, spreading out from a. These might be in a parallel pattern or a nondirectional pattern.
How to repair spider cracks in fiberglass with images. Fix them yourself with this straightforward tutorial. Our test boat has had a few spider cracks since a few months after she came out of the mold. I flew up to tokyo yesterday and back on the 15th, so will take some pics for ya then. Know what the causes are and fix them,then finish off with repairing the gelcoat cracks and. Spider cracks in gelcoat moderated discussion areas. 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 boat s. Heres an easy way to fix and color stress cracks in seconds and its so tough it comes with a 3 year durability guarantee 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 it penetrates deeply into the pores of even the finest. The boat is in pretty good condition for its age in my opinion, but the hull does have some minor hairline stress cracks.
Apr 21, 2020 fixing them is laborious, and if you want to really do it right, it is expensive due to the need for gelcoat spray. Hi andy, i have to repair a large area of deck on our boat with is crazed everywhere with large and small cracks. The damage is midship, spider cracks that extend out in a 2 to 3 inch diameter in the gel coat and in the cockpit. Stress by thermal expansion or when bulkheads and liners were installed can cause minor flexing. How to fix minor cracks in fiberglass building your own boat can be cheaper than buying a manufactured boat. However, you can easily fix small or hairline cracks in porcelain sinks using repair. Hairline cracks, stress cracks or spider cracks star cracks that occur in gelcoat surfaces on fiberglass boats or other water craft are often seen as a cosmetic issue. Spider cracks in hull boat talk chaparral boats owners. Sand the damaged area with 100grit sandpaper to roughen the surface. I restored a black gold bell wildfire that had a lot of fine spider cracks in the clear polyester gel coat. Crazing in gelcoat, also known as spider cracks or stress cracks, plagues countless boaters. If you want them gone, take the time to do the job right and do the boat justice. Using highbuild primer to repair fiberglass crazing.
Small cracks forming, especially at the surface of the fiberglass cracks spreading out from the. Do i grind the stress lines back to the laminate then fill with epoxy 1978 thompson 18 spider cracks. Since your boat is just a few years shy of a halfcentury old, it is more prone to flexing than a new boat, so my guess is it would just start cracking again. Hairline spider cracks must be opened wider and filled with an epoxy filler to be permanently repaired. My hull just developed spider cracking on both sides,that go parallel about 5 inches in lenght,then web out 10 inches on both sides of the hull. I have not had the boat for a while, i got it through a trade. How to repair a cracked plexiglass windshield it still runs. What to do when you see alligator cracking in asphalt.
These hairline fractures also occur in boats of the mid 1970s vintage which often had thicker gelcoat layers than newer boats. They can occur in any form of fiberglass, including cars, boats and swimming pools. I have a 2005 r12x with 7 hours on it, bought brand new leftover this year. Repairing hundreds of fiberglass cracks to get ready for spraying awlgrip paint.
Easiest way to apply a perfect nonskid on your boat using alexseal paint. Use a rag to protect your fingers and to do a thorough job of removing dirt and debris that. It penetrates deeply into the pores of even the finest of cracks for ultra tough adhesion and durability. May 05, 2015 the pop out is a more common issue and easily fixed, normally the result of an air void between the fiberglass and gel coat. How to fix spider cracks in fiberglass it still runs. Stress cracks, spider cracks, and hairline cracks in the decks of older boats are, of course, not rare. Stress cracks in fiberglass bass boats, canoes, kayaks.
A prior owner had fixed a few with evercoat gel coat scratch patch gel coat repair, with ugly results. Repair tiny cracks in your sink with repair compound or epoxy adhesive. While theres little chance of vehicles being damaged. To diagnose spider cracks, inspect your boat and look for the following. The stress cracks are not much larger then the thickness of a. Just noticed a few hairline cracks on my boat today as well. Radial cracks spider cracks, star cracks caused by impact or by a fixture bolt that puts strain on a certain area of a boat and cracks occur around the hole.
Sometimes, however, spider cracks offer a path for water to get into contact with the fiberglass structure under the gelcoat. We also strongly advise keeping traffic away from the affected area, if at all possible. In this case the cracks need to be examined closely, even chipped away at, to see if they extend through the gelcoats 0. Repairing hundreds of fiberglass cracks to get ready for. All gelcoat is, is nonreinforced tinted fiberglass. Repairing hairline cracks and how to do repair gelcoat. All that filler wont allow the gel coat to shrink as much as the hull and the gel coat fractures. Spider cracks when i asked steve at qcc about the spider cracks he told me not to worry about them unless they are letting in water. 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. Magicezy hairline fix demonstration how to repair stress. How to fix crazing in gelcoat, also known as spider cracks or stress cracks which plague countless boaters. How to repair gelcoat cracks one quick and easy way to repair gelcoat stress cracks yourself is by using magicezy hairline fix a purpose built diy repair solution for stress cracks in gelcoat and fiberglass. This damage is often caused by slight flexing of the hull. Car and boat windshields are often made of plexiglas because it is an inexpensive and durable material.
Grind out all the cracks in the gelcoat, regelcoat and put a new nonskid in. These cracks are generally cosmetic, and indicate flexing of the hull. How to repair a crack in plexiglass acrylic with solvent cement. The location of the cracking is the center of the hull,about 5 inches down from the bump molding. Aug 15, 2018 unless your boat lives her life dockside cuddled up to a couple of fenders, shes going to get a few scrapes and bruises. Apr 24, 2009 the engines good and transom along with all other goodies that make a boat go. Repairing hairline cracks and how to do repair gelcoat magicezy. The cracks are really fine and i couldnt even see them until i rubbed some wax over it and the cracks turned white.
How to repair spider cracks in fiberglass boat life. Fill the crack with a fair amount of fiberglass epoxy resin, using a plastic applicator. I didnt hit any thing but did some wave jumping 1 to 3 waves. There are recessed spots over the entire nonskid surface. Jul 27, 2016 as a general rule, whenever you see any cracks appear in your asphalt, the first thing you should do is apply crack filler or sealcoating, weather permitting, to try to halt further spread of damage. It may be possible to paint only a portion of the boat. One thing i forgot to mention is to allow the glue to dry for a couple hours. Boat gelcoat stress cracks are a common problem within the marine world when it comes to fiberglass gelcoat boats, a. May 01, 2014 just noticed a few hairline cracks on my boat today as well. Start by deciding which areas of the boat need attention. And almost every fiberglass boat, even the most mollycoddled, eventually suffers the heartbreak of spiderweb andor stress cracks. Otherwise clean them out, polish up the boat as best you can and live with them. This thicker gelcoat cannot stand any flexing without showing cracks. Dec 06, 2017 spider cracks can indicate impact damage or serious structural problems that will need to be addressed to prevent spreading, but most often they result from relatively inflexible gelcoat that is too thick.
We have this awesome boat that just cannot take enough of a beating, but. How to repair spider cracks on your fiberglass boat. Thermal fatigue cracks when gelcoat repeatedly expands or contracts. Spider cracks are nonstructural damage to the gelcoat of a boat spider web cracks in gelcoat. Small cracks forming, especially at the surface of the fiberglass cracks spreading out from the center, much as you would see in a spider web. The appearance was considerably improved by wet sanding the entire hull down to 2000 grit, then applying several thin coats of system three clear coat epoxy, which is. Learn how to treat wearinduced spider cracks that appear along the hull of your dinghy. From what i know from reading posts here, i would need a dremel tool to create a gorge on the gelcoat crack before applying the gelcoat putty.
A spider crack usually has an impact point which may or may not cause a small hole in the center and the glass around the impact point cracks around it and gives the appearance of a spider web hence, the name. Spider cracks are nonstructural damage to the gelcoat of a boat. As far as how they did in detail, not 100% sure, just know they laid down a sheet on another area that can take the pattern, then pull off in a couple days, then spray the gel and then apply a sheet of fibre. Step 4 as soon as the crack has been channeled out, wipe it clean. These scars of a life welllived are unsightly, but usually are just cosmetic. Jun 10, 2017 hairline spider cracks must be opened wider and filled with an epoxy filler to be permanently repaired.
May 27, 2009 this is usually evidenced by a concentric ring pattern as opposed to random crisscross spider webbing. A spider crack is usually the result of a piece of debris. This material property is the cause of what are termed cold cracks. Repairing stress cracks in a nonskid textured deck ive got a 79 f36 trojan. Cold cracks are fractures of the material usually running perpendicular to the keel line of the canoe and terminating at a fastener along the gunwale line. Clean the area with acetone and a rag to remove any dirt or other impurities. How to repair spider cracks in fiberglass boatlife. Oct 24, 20 friend of mine looking at 2011 cougarcouple spider cracks on each inside bottom corner of splashwellis this common or cause for concernhull is w spider cracks bass cat boats bass cat boats. Ralph, since you got me interested in gelcoat repair one or two per year, i believe you would have some answers for me. First, get your boat to a wellventilated area where it can be sheltered overnight. Despite a kitchen or bathroom sinks durability and resistance to wear and tear, cracks are inevitable. I had this issue on the chine corners on my 226ssi exposed by the lift bull at the dry stack marina, but due to mold deficiency at the factory. 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.
If the surface of your boat looks like a cracked eggshell, the gelcoat is suffering from crazing sometimes called alligatoring. The first step needs to be ensuring that your spider cracks are just that, and not a sign of a soggy core, or a broken support. Step 3 now, once youve removed all hardware, toerails, and other paraphernalia. Ranger says that they can supply a plate to fit under the deck to reinforce it.
The next thing to so is to carefully sand the surface of the repair using a rag and some acetone solvent. When the area is dry, smooth the surface with sandpaper. Dec 29, 2017 know what the causes are and fix them,then finish off with repairing the gelcoat cracks and. Boatus magazines mark corke shows you how to easily repair those pesky spider cracks that show up in your boats fiberglass gelcoat. We have this awesome boat that just cannot take enough of a beating, but the gelcoat in some spots seems to craze, or spider web. Based on the location i think the winch on the mooring cover probably knocked into the side of the boat at some point. The biggest problem with plexiglas is that if it cracks or scratches, the entire area around the crack or scratch becomes cloudy. It sets up quick but needs time to build up strength. Oct 15, 2019 spider cracks when i asked steve at qcc about the spider cracks he told me not to worry about them unless they are letting in water. Fixing a crack in the plexiglas is the easiest thing to do yourself so you do not.
The cracks are purely cosemetic, and not structural to the boat. If not managed, these small cosmetic annoyances can. Magic fix for hairline cracks in gelcoat practical sailor. This is usually evidenced by a concentric ring pattern as opposed to random crisscross spider webbing. Feb 24, 2014 from what i know from reading posts here, i would need a dremel tool to create a gorge on the gelcoat crack before applying the gelcoat putty. Step 2 then toughen the laminate that contains the crack or cracks by solidifying it. Bass cat owners is a forum for bass cat owners to learn, share, and discuss more about their boats. Repairing stress cracks in a nonskid textured surface.
You should add a layer of scuffing to the cracks at a wider point than you would need. I have worked on many boats with spider cracks, the best method i have used is a dremel tool to gouge the cracks and fill them with a gelcoat paste made with gelcoat and glass bubbles works wonders, as for sand paper you will have to change grits as you sand and fill. The engines good and transom along with all other goodies that make a boat go. Spider cracks are a form of fiberglass damage that occurs from minor flexing or impacts.
You dont always have to have a 10 year old boat to be experiencing this problem. Spider cracks are small, hairlike cracks that appear on the gelcoat of boats. The quickest and easiest way to remove the appearance of spider cracking is to apply a quality paint job to the boat or at least the damaged area. As a general rule, whenever you see any cracks appear in your asphalt, the first thing you should do is apply crack filler or sealcoating, weather permitting, to try to halt further spread of damage. Step 1 figure out what caused the cracks to begin with.
How to fix spider cracks, hairline cracks, and crazing in boat. How to repair a badly damaged fibreglass boat duration. The pop out is a more common issue and easily fixed, normally the result of an air void between the fiberglass and gel coat. It was a quick way to make it look better for a while anyway, but the cracks always reappeared later. Small cracks form in the outer surface of the fiberglass, spreading out from a central point like a spiderweb. They seem to appear out of nowhere, and for no reason. One manufacturer use to just sand and polish spider cracks especially on runabouts with metal flake gelcoat. Its the unstable nature of the polyesterfiberglass hull under the gelcoat and its tendency to shrink slightly over time that cracks the gel coat. Sometimes, however, spider cracks offer a path for water to get into contact with. How to repair a crack in plexiglass acrylic with solvent. Fixing them can involve more than just slapping on some gelcoat, however, and that is where we come in. The cracks are called spider cracks, and they are normal for a gel coat finished boat. Spider cracks in hull boat talk chaparral boats owners club.
Simply put, royalex will contract when exposed to cold temperatures. Large cracks are typically difficult to repair and require replacing the entire sink. A spider crack is usually the result of a piece of debris or a rock that hits your windshield while driving. When i suspected the boat was leaking i did a dye test indicating there were some problems with the gel coat in the bow area that had been previously repaired. Fixing them is laborious, and if you want to really do it right, it is expensive due to the need for gelcoat spray.