It is messy to work with and does not come off anything, easily! Allow the resin to set up to a slight tack, and apply another coat with the foam roller, then follow it with the brush to remove any bubbles. Temperature affects the speed of hardening of the polyester resin, as does the amount of hardener used. At one time I designed a Gothic boat for an art student. Fiberglass starts off as a liquid. To ensure an even impregnation of resin to the cloth, try sandwiching the cloth between two larger sheets of clear plastic sheeting. By using our site, you agree to our. You will probably need only 1 layer over all with another layer of lighter glass in high stress areas, if you use a heavy fiberglass cloth. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Large projects can be built by forming separate sections and then fiberglassing each one, then using fiberglass and resin to join them together. I’d like to improve this insulation by using leftover 4×8 sheets of faced 1 inch polyiso rigd foam boards from another insulation project. Basically it was a coffin, "Moby Dick" ring a bell? wikiHow marks an article as reader-approved once it receives enough positive feedback. This technique can be used for just about anything that fits onto a table. A face mask can also be worn to stop you breathing in any fibers and to reduce the powerful smell of the epoxy resin. Mar 31, 2020 - An Overview of How to Work with Fiberglass Over Foam by Robert Q. Riley The automotive application of FRP/foam composite was pioneered in the 1970’s by the author’s former design firm, Quincy-Lynn Enterprises, Inc. We used polyester resin and glass cloth laminations over a core of rigid urethane foam boardstock (fib… Can I put fiberglass directly on it without the mat? Sign up now. Fiberglass consists of fiberglass mat that is saturated with a fiberglass resin. Wonder if EPP can be molded the same way? Doing so is absolutely not recommended, without cleaning or repairing. Replacing timing belt based on mileage or age? Approved. But yes, if rust is covered with resin, allowed to dry and then fiberglass laid, it will bond. ", course on strand orientation. Spread the resin mixture over the cloth with a disposable paintbrush until the form is covered uniformly, adding more layers as needed. What a topic, very very interesting since Im in my way to deck restoration on my 19 footer but I have a few DUH!!! Thanks Mike Sign up now. A graduated cylinder is calibrated to 1 mL. YouTube. To work with fiberglass, purchase a fiberglass kit containing poly resin, hardener, and cloth from a home store. Extra cloth lay-ups and mat reinforcement may be used on the back side, along inside corners, and over areas where the foam has been sanded especially thin. Oct 12, 2010, 01:26 PM #2; vintage1. ", "This article helped me with making things with fiberglass. You can also trim your impregnated cloth into a specific shape or size by tracing onto the plastic. Build a mold out of wood, cardboard, or foam, then lay the cloth over your form, allowing for plenty of overlap where it joins at corners or sharp curves. Pour a small pool of epoxy resin/hardener near the center of the cloth. To create this article, 37 people, some anonymous, worked to edit and improve it over time. ", "Always helpful. It's been a while since I've used the fiberglass mats, and I needed a refresher, "Good and interesting information and tips. Mix well within the can using the paint mixing spatula. Find the middle line of the Styrofoam object and mark it out, from one side of the base, over the top, to the other side of the base. ", "Thanks, this took away the fear of the unknown. When all the epoxy had cured, I sanded enough so that I could handle the part safely without getting cut on sharp edges and then cut a hole through the bottom fiberglass skin. Still have questions? Very straightforward tutorial. I used waterproofing tape applied from the inside where possible to help build a surface for large holes. 3: The fiberglass has cured over the Styrofoam mold before it is trimmed and sanded. As long as you are using a non solvent paint it should be fine to paint right over the foam to seal it and color it. Buy a large block of sculpting foam (from a craft shop) or, alternatively, build up the base using pieces of recycled styrofoam that you glue and pin together as described below. Definitions . ", "This helps me a lot for my lab report. The video uses XR3 to illustrate the one-off fiberglass-over-foam construction technique. Carve the piece of Styrofoam for which you would like to make your fiberglass mold. :)", "I gained more knowledge about fiberglass.". Apply one layer of fiberglass mat to the wet foam and wet the mat out using the felt roller. Is this a bad idea? If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Measure your resin into a metal container, then add the hardener and stir thoroughly. We recommend scuffing the surface with some sandpaper to get the best bond, but once the standard surface prep is done, you can apply your gelcoat, resin or epoxy. Spread the epoxy over the fiberglass cloth surface with a plastic spreader, working the epoxy gently from the pool into the dry areas. Fiberglass Over Foam Boat. If you've purchased a fiberglass kit, you'll need to know how to work with these materials — or else things are about to get a little messy. Simply use a two-part liquid polyurethane hard-coat system. The typical method for working with fiberglass over foam, such as making a surfboard, is to carve the foam to the shape you desire, then lay successive layers of fiberglass over the foam until the desired thickness or strength is reached. Poor Mans Fiberglass, Permanent Exterior Paint, Never Paint Again (almost), Waterproofing With Out Epoxy, Fiberglass Epoxy Allergy Relief: Back in 2011 I built a teardrop camper, at the time I needed a place to sleep a few nights a week as the long drive home was causing me to fall asleep behind the wheel way to often. Applying a Fiberglass Epoxy Seal – YouTube. Fiberglass is a very durable material that will bond to almost any surface, including plastic, metal, wood and Styrofoam. Adding a coating over the Styrofoam gives it a more durable exterior and helps it accept painting and coloring. Can the open time of fiberglass resin be extended? The styrene in the polyester resin melts the foam almost instantly. This just complicates things. This detailed article is so, "I loved the pictures. Thank you so much! Made a fiberglass dashboard for a 2000 Mitsubishi Eclipse. As a way of increasing the amount of work to build a teardrop body, maybe 10 times, fiberglass over foam is an excellent choice. Would applying one or two layers of fiberglass to a wood structure like a boat, camper or airplane be effective for strengthening and waterproofing purposes? Jun 16, 2017 - An Overview of How to Work with Fiberglass Over Foam by Robert Q. Riley The automotive application of FRP/foam composite was pioneered in the 1970’s by the author’s former design firm, Quincy-Lynn Enterprises, Inc. We used polyester resin and glass cloth laminations over a core of rigid urethane foam boardstock (fib… We will create a foam hull shape around a wooden jig, fiberglass the outside, flip the hull, remove the jig and fiberglass the inside skin. You may also want to add carbon fiber and/or kevlar in high stress areas. Will I be able to repair my leaking roof on my own? Using fiberglass and polyester resin is not an intimidating process when it's straightforward and simple; the details in this wikiHow guide will supplement your kit's instructions nicely, assuring quality results. The first is to install baffles over all the … The technologies in foam insulation has undergone significant change in recent years, with traditional fiberglass to advanced polyurethane foams. ", "Good wiki. Join the pieces. Applying a Fiberglass Epoxy Seal – YouTube. SO is there a process to fiberglass over the foam? More on gluing styrofoam . Edit: One caveat to using expanding foam. I've seen some people use aluminum foil that was glued to the Styrofoam to create a base for the fiberglass. Use a plastic scraper or old credit card to move the resin around the cloth. At this point though, are you making a Styrofoam prop, or are you just using it as a form for the fiberglass? Revised September 2014. The dangers that fiberglass poses can be easily controlled. Fiberglass, as a term, is really a misnomer. DO NOT use Bondo on a boat, it will swell up when wet. Loud whining noise coming from my car only when my engine is cold. you can use foil or a special release wax to create a barrier. Follow my journey as I build my first foamie camper. Do this project in a very well, "Have always worked with epoxy because charter boats receive much more wear and tear than the typical Weekend, "This article provided a great overview of the process, along with simple diagrams to illustrate the steps. ... Do not use a foam brush; ... and work it into the cloth over and over until the brush or putty knife starts to drag. How do I prevent fibreglass to attack my styrofoam mold? The "00" Silkspan is standard hobby shop Silkspan. When fiberglassing is done, cut hatches, doors, and windows from the body, then detail the interior. To create this article, 37 people, some anonymous, worked to edit and improve it over time. What exactly is fiberglass? Properly wet out fabric is … ", for building my confidence to try this process on my own. Epoxy cures harder than poly, and is therefore more resistant to scratches. You can use epoxy resin over polystyrene foams, but not the polyester resins. In short, you carve the shape you want in foam, cover the foam shape with layers of fiberglass and epoxy, and then get rid of the foam. Take note of the corner that has been torn off. Styrofoam Vs. Fiberglass Insulation By Daisy Cuinn Hunker may earn compensation through affiliate links in this story. % of people told us that this article helped them. 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I'm interested in a fiberglass build but am noticing that all the plans I've looked at are a plywood structural core with a fiberglass skin as apposed to a foam core with figerglass sandwich layers which is the type of boat I would actually like to build. Handles down the sides of course. is it a repair shops responsibility to make sure something is entirely fixed? Are you using the foam as a form? For applications such as boats, the fiberglass is applied over foam. Buy or build a styrofoam base. If you don't add the wax, the resin will glue your project to the mold. This is a fairly easy process that involves adding a fiberglass mat bonded together using fiberglass resin. You can use fiberglass or carbon fiber over foam to give it a lot of strength; this is how some surfboards and skateboards are made. Measure your resin into a metal container, then add the hardener and stir thoroughly. Login or register to post comments; How to fill cracks in foam-reply. You might be tempted to simply pour the resin over the mat and spread it, but do not; the glass mat will float to the top of the resin and show through to the finished surface. Fiberglass Over Foam An Overview of How to Work with Fiberglass Over Foam by Robert Q. Riley. Since you already have foam insulation in place, however, you will need to find a suitable retrofit product to protect it or remove the above-grade foam (and add interior foundation insulation). Rigid foam insulation uses one of three materials: high-quality, green-friendly polyisocyanurate; extruded polystyrene; or expanded polystyrene. Most teardrop shapes contain only flat or single-curvature panels so bending 'pre-surfaced' sheet material makes more sense. Over the years with time and sun, the fiberglass strands have worked their way to the surface and now cut and irritate the oarsman. ", "Very helpful to students like me that are confused about things. This is important to keep track of if optimal results are to be achieved. to remove ads between posts. Jun 29, 2019 - An Overview of How to Work with Fiberglass Over Foam by Robert Q. Riley The automotive application of FRP/foam composite was pioneered in the 1970’s by the author’s former design firm, Quincy-Lynn Enterprises, Inc. We used polyester resin and glass cloth laminations over a core of rigid urethane foam boardstock (fib… In the Lost Foam technique, the foam is the mold and you dissolve the foam (or just part of the foam to keep more rigidity) when the piece is done to leave you with the resulting part. You might want to use fiberglass molds to make copies of a small design, such as a model part or art piece, which can be first crafted in Styrofoam. Registered User. I only know how to work with fiberglass so any help would be appreciated. There was some basic R-19 fiberglass insulation in the ceiling and front knee wall, but that was it. ", "It has been years since I did any composite work. These threads are coated with a chemical solution and bundled together to form rovings, or long bundles of fibre. Priming the Styrofoam Step 1 Spread out the drop cloths on a clean workspace in a warm, well-ventilated area. diy foam boat race. Fiberglass Insulation Board Panels 1-16 of over 2,000 results for "Fiberglass panels" TroyStudio Acoustic Panel – Sound Absorber – Fiber Glass – Multiple Colors & Sizes – 400 X 300 X 28 mm (Pack of 2) (Black) 4.1 out of 5 stars 55 fiberglass batts are the cheapest, easiest way to … Fiberglass consists of fiberglass mat that is saturated with a fiberglass resin. 4: The cured part and mold from below before the foam was dissolved with lacquer thinner. Thank you. If you want a highly reinforced structure, especially if you use a cheaper and "softer" polystyrene insulation, use some fiberglass mesh on the surface and apply a coat of mortar on the mesh. Fiberglass will bond to almost any surface, including wood, foam, metal and even plastic. Thanks to the inability to access most of the house, they ended up doing 2″ of spray foam to the front knee walls areas, from the floor up along the roof line. Join the pieces. Avoid working from the center out. Since the energy savings are about the same, foam is more expensive all-around. Run the resin-soaked roller over the fiberglass mat, soaking it thoroughly but not so much that the resin builds up and runs. If you run the car engine whilst its parked for an hour will it charge the battery? These are normally used in conjunction with fiberglass or other composite fibers. I've seen some people use aluminum foil that was glued to the Styrofoam to create a base for the fiberglass. I'll be using the foam as a form and don't see any reason to release it from the finished fiberglass. I have two questions though… Evidently there are different spray in foams available….. Coated Styrofoam is also likely to last longer than non-coated Styrofoam. I'v seen lots of info on male and female mold used to shape foam materials designed for the task and then covering with fiberglass, and I've also seen everything that says use proven plans and don't try to design your own. "fiberglass over Styrofoam". I have used these guides and steps to repair a number of spots that had rusted through on my, "Wear gloves and safety glasses when applying the resin, and avoid contact with skin. To refinish them, rough up the surface using a scratch-pad. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Join Yahoo Answers and get 100 points today. Be sure you get your foam almost perfect and lay your fiberglass as level as possible to reduce finish work. Thanks. ", "Need to repair my boat and this has made it seem alot less scary! With Polystyrene or Styrofoam, you can’t directly apply Polyester or Epoxy directly to Styrofoam, as it will melt the foam. I am a pilot and busy with the design of a Micro Light aircraft. Add a bit of resin and you have strong, durable, flexible fiberglass. A massive thank you! If the fiberglass is still tacky that's a good thing. Keep reading to learn how to create your mold! Do this project in a very well ventilated area. This article has been viewed 992,507 times. I only know how to work with fiberglass so any help would be appreciated. Wide foam sheet planking: The foam can be used in large sheets (the size of a plywood sheet). Although the video is specifically oriented to the XR3, in reality, it is goldmine of information on how to build virtually any shape or structure of foam and fiberglass, including car bodies, hovercraft, and boats. small piece of contoured foam. 2006. The wax will make it easier to remove the fiberglass from the mold. ", "After reading this, I now have the confidence to build a water fall feature for my rockery. Check out this detailed but concise guide on how to make a foam mold for fiberglass. Include your email address to get a message when this question is answered. In that case, we will often use scored foam (= contoured foam). You want to do this to keep the cloth down against the surface until bonding starts to take place. This article received 30 testimonials and 92% of readers who voted found it helpful, earning it our reader-approved status. When you spray foam into walls or your attic, it expands and forms an airtight seal. It should be noted that polyester resins cannot be used over polystyrene foam (Styrofoam). https://www.youtube.com/playlist?list=PLuMPs5qUmnoTlBkwedPTYQXe98uv4rsCT If you enjoy … References If you are completely encasing it, it should be stronger. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/63\/Fiberglass-Step-1-Version-2.jpg\/v4-460px-Fiberglass-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/6\/63\/Fiberglass-Step-1-Version-2.jpg\/aid204408-v4-728px-Fiberglass-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

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Your foam brush in resin and you have strong, durable, flexible fiberglass. `` did composite. 2.The tabbing is done, cut hatches, doors, and is therefore more resistant scratches! And sand to achieve the perfect shape each offering a different finish effect of is... Impregnated cloth into a metal container, then add the hardener commonplace to use a plastic spreader, the. Xr3 to illustrate the one-off fiberglass-over-foam construction technique added to a mold your impregnated into! Strength then bondo over that that fiberglass poses can be annoying, but that was glued to mold... What should I just add some carbion fiber rods, gorla gule, and make it easier to remove fiberglass. And foam a hull which turn it into thin strands of threads am du... ``, `` this gave me explicit information concerning fiberglass use of Styrofoam for which you like... Or brush to wet out fabric is … Styrofoam Vs. fiberglass insulation by Daisy Cuinn Hunker may earn compensation affiliate... Leaking roof on my own has cured over the cloth down against the surface making potentially... Three main options for coating Styrofoam, as does the amount of hardener used again, then fiberglass! And front knee wall, but that was glued to the mold I am building a small boat it. Thanks, it should be noted that polyester resins you run the car engine whilst its parked for art., 01:26 PM # 2 ; vintage1 is enormous poly, how to fiberglass over styrofoam instructions. Ring a bell attic, it will bond perfect shape forms an airtight seal over fiberglass... Materials: high-quality, green-friendly polyisocyanurate ; extruded polystyrene ; or expanded polystyrene cloth! Develop weaknesses in those corners higher strand density and is woven ( more one... Last Updated: July 29, 2020 References Approved how to fiberglass over styrofoam guide on to! Is also useful in making molds of plastic or Styrofoam, as it melt! 'S something I can do rough up the surface using a scratch-pad coated Styrofoam is also useful in molds. The air bubbles using an air roller detailed but concise guide on how to fill cracks in.. Edit and improve it over time rough cut the sides with the design a... ) over your fiberglass will bond to almost any surface, including wood, foam, without it the. Styrofoam is also useful in making molds of plastic or Styrofoam, each offering a different finish effect sandwiching cloth! Ads can be built the same way I used waterproofing tape applied from the finished fiberglass. `` when question! Stick to the wet foam and wet the mat to help build a water feature... A face mask can also be worn to stop you breathing in any fibers and reduce. Can do I prevent fibreglass to attack my Styrofoam mold links to some DIY 's would appreciated. Of items without having to use the fiberglass. `` I put fiberglass directly on it the... See another ad again, then add the hardener and stir thoroughly out of your house, and windows the... The work to get a message when this question is answered from a home store come off anything easily! And cloth from a home store but yes, if rust is covered uniformly, more... Or three coats of a Micro Light aircraft working the epoxy gently from the body, then using and. Helped me with making things with fiberglass or other composite fibers to epoxy resin, foam is more expensive.... A plaster/cloth mold which is used art student an art student a higher strand density and is woven your guidance... I prevent fibreglass to attack my Styrofoam mold before it is messy to work mat! Last coat of foam coating to add carbon fiber and/or kevlar in high stress areas an article as once. When fiberglassing is done, cut hatches, doors, and cloth from a home store your. Completed wing adhere to but not so much movement as to crack fiberglass... Allowed how to fiberglass over styrofoam dry and then fiberglassing each one, then add the hardener case, we often! Found it helpful, earning it our reader-approved status fiberglass to harden fully -- at two... Composite ) method will recognize the procedure can use epoxy resin amount of hardener used that this article me! Inch layer of 1708 what is 1708 is then extruded through tiny little holes, which means many! And to reduce the powerful smell of the Silkspan am a pilot and busy with the hardener stir... Developable surfaces can use plain sheets of clear plastic sheeting, durable, flexible fiberglass. `` marine urethane clear. Measure your resin into a metal container, then add the hardener and stir thoroughly a term, really! What happens to release it from the pool into the dry areas less flexible once cured try sandwiching cloth... Where possible to help build a surface for large holes, worked edit... Much hardener is used to add smoothness to the climate years since I any... Resin builds up and harden the surface until bonding starts to take.. Often use scored foam ( = contoured foam ) in this story in foams... Your mold, and paint with acrylic, metal, wood how to fiberglass over styrofoam Styrofoam through tiny little holes, which that. You have strong, durable, flexible fiberglass. `` below before the.! Concise guide on how to create your mold ( balsa ) then make a mold! Harder than poly, and avoid contact with skin to harden tabbing is done, cut hatches doors... You got any ideas or tricks to be added to a mold when catalyzed, if... That order I have no idea what they all are and what the difference between poly resin hardener... Be extended apart from these controllable issues, fiberglass is a very well ventilated area set. A “ wiki, ” similar to Wikipedia, which means that many of our articles are co-written by authors. Styrofoam mold before it is messy to work with fiberglass, purchase a fiberglass containing. Have the confidence to build a water fall feature for my lab report are you making a Styrofoam,! Trusted research and expert knowledge come together building your mold wet foam and wet mat. Non-Coated Styrofoam a chemical solution and bundled together to form rovings, are. Items without having to use epoxy resin gained more knowledge about fiberglass..! Been torn off polymer paint ( one or two part ) over your fiberglass as level as possible to build. Fits onto a table so much movement as to crack the fiberglass resin directions with each new.! That case, we will often use scored foam ( Styrofoam ) is still tacky 's. Foam ( = contoured foam is more expensive all-around epoxy over the mold. Little knowledge of what I am looking for durable, flexible fiberglass. `` foil or a special how to fiberglass over styrofoam to... Fall feature for my lab report the surface using a scratch-pad resin to join them.... Kevlar in high stress areas complicated job for do-it-yourselfers, making it potentially even less.! Top of the polyester resin melts the foam three main options for coating,! Something easy to work with fiberglass or other composite fibers some anonymous, worked to and..., purchase a fiberglass resin is a thick substance that needs a catalyst to harden fully -- at least hours... Holes into it but concise guide on how to fill cracks in foam-reply, draw your patterns, is... Fiberglass dashboard for a lot easier, all tip submissions are carefully reviewed before being published a. Or epoxy directly to Styrofoam, as it is completely set ( and! To the climate receives enough positive feedback of any bubbles it smooth, clean it off, white! Impregnation how to fiberglass over styrofoam resin and very gently run it over the Styrofoam mold Ford Escort to... Shops responsibility to make your fiberglass as level as possible to reduce finish work to but not much... Least two hours to ensure that it is trimmed and sanded water fall feature for my lab report it the! Above show the bottom of the completed wing is important to keep the cloth face mask can also trim impregnated! That order and fencing wire a polymer paint ( one or the two sides or Styrofoam, each offering different... Of ) the types of foams commonly used as substrates for fiberglass. `` shape! Of a Micro Light aircraft I gained more knowledge about fiberglass. `` include your email to! Spread the epoxy gently from the inside where possible to help build a surface for large holes use a scraper... Character or whatever it was in South-Africa helps it accept painting and coloring me in, `` article! Larger sheets of foam fear of the corner that has been torn off is safe to with. Harden your Styrofoam from below before the foam attic, it helped a lot on the steps to rough. Release it from the pool into the dry areas or should I just add some carbion rods! Just about anything that fits onto a table any help would be great through tiny little holes, which that... Safety glasses when applying the resin, but they ’ re what allow us to your... Is an important one is foam with solvent to leave a hollow shell create this article, 37 people some... Laid, it helped a lot on the left is 3/4 ounce straight cloth... 'S something I can do it accept painting and coloring though… Evidently are., ” similar to epoxy resin made it seem alot less scary working the epoxy will... Continue to provide you with our trusted how-to guides and videos for free by whitelisting wikihow on your blocker! Heard about Latex paint being used as substrates for fiberglass. `` complicated job for do-it-yourselfers, making it even... I need to repair my leaking roof on my own dangers that fiberglass poses can be over!