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How to Fiberglass - Instructables
A look at basic boat construction, fiberglass technology, and the fundamentals that modern boat builders use.� Get some Fiberglass Boat Construction Methods Pdf 2?? insight into how core works inside a fiberglass part by watching our Understanding Foam Cored Boat Construction video. Advanced Boat Building Techniques. Along with these new materials, methods of laying them up into what will eventually become a boat have also advanced in recent years.� Alternative Boat Building Methods. While the vast majority of the recreational boats built today rely on these materials and methods, there are exceptions. Most often you�ll find them with large yachts, where price is no object. Some are still built with metal hulls, and some others with techniques like �cold molding,� or �plank on frame.�. How to Fiberglass: Fiberglass has a robust material for propmaking, aquatic sports, boating, surfing, myboat300 boatplans everything! It is a powerful material in any maker's arsenal. Here are some projects to get you inspired about working with fiberglass, and le How to Install a Marine Dual Battery Setup for your Boat. Adding a second battery is an easy project that helps lend peace of mind. Fiber reinforced polymer (FRP) components can be manufactured by different methods, for example using pultrusion process. These high-strength FRP materials provide the bridge system with a strength-to-weight ratio greater than steel, thereby offering significant design and erection advantages over traditional materials. This article discourses the advantages for fiberglass over common construction materials. Fiberglass is a prospective building material for the following reasons: high strength, lightweight, component construction, easy installation, attractive appearance and low maintenance co.

Here's a couple of low cost and quick procedures I use to manufacture simple parts using fiberglass and carbon fiber. Carbon fibers are extremely sharp when cut and the use of resins and melting of foam can produce nasty vapors.

The modifications were pretty ugly and un aerodynamic not to mention the tires would still rub on occasion so he asked me to make new fender parts that could be grafted onto the existing bodywork so he wouldn't have to buy all new bodywork for the front of his racecar. I made these modifications several years ago so I don't have photos of the entire sequence so I did drawings to fill in the gaps. The first thing I did was to figure out how much I wanted to raise the fender line and then cut a template to be used to cut the blue foam.

The blue foam is then cut using a hot wire cutter and is placed on top of the existing fender to check the fit. Next the foam is taped down to the fender using clear packing tape- the tape prevents the polyester resin from melting the foam when applying the fiberglass. I then made some vents for the new fender using some wood molding- this is hot glued in place on the taped foam.

The taped foam then gets a coating of mold release wax. Now the fiberglass cloth is wetted with polyester resin and is applied over the foam. You can use woven fiberglass cloth or chopped strand mat for this. All epoxy resin will do is make a huge mess. One trick I do when using woven cloth is I pre cut my cloth and stick it down on my pattern with some 3M Super77 spray cement and then wet the woven cloth out with resin using a short bristled paintbrush.

If the cloth or CSM has to be applied in sections make sure the sections overlap by at least one inch. Once the resin has cured you can pull the fiberglass mold from the foam pattern. To mold a carbon fiber positive from the fiberglass mold you first apply a mold release wax to the fiberglass mold.

Then start wetting out the carbon cloth with resin and laying it inside the fiberglass mold. When wetting out the resin use a short bristled paintbrush and a "stippling" action to make sure the resin has fully penetrated the carbon cloth as is placed in the mold. I tend to use epoxy resin when laminating carbon cloth as it produces a much stiffer final product. This is because the woven carbon cloth only has stiffness in the direction of its fiber orientation. Before the resin has fully cured you can trim the excess material around the edges of the mold with scissors- this is much harder to do later.

Once the resin has fully cured the part can be removed from the mold. After the molding process was finished all I had to do was bond the new carbon sections onto the existing bodywork and blend it in with some filler. I used this method to create an air duct for the oil cooler on a friend's Porsche GT5R racecar. This is a very quick and easy way to mold a hollow component or a part that has severe undercuts that would not alllow it to be molded in a single piece female mold.

The first step is to cut a pattern from blue insulation foam and wrap it with clear packing tape. Next, cover the taped pattern with a mold release wax.

Now cover the pattern with woven fiberglass cloth and wet out the resin. Make sure to leave a section uncovered- this is where the foam will be melted. After the resin has cured, melt out the foam by pouring acetone on the uncovered section note that in drawing 4 it says kerosene- this is incorrect. Make sure you have a decent sized tray or bucket under your part- this will get messy!

As the foam melts you can reach into your hollow part and pull out the packing tape and you are left with a hollow molding. In this case I wanted to make a hidden subwoofer enclosure for my car by molding a fiberglass tub that sat inside the spare tire so I wouldn't lose any trunk space.

I first started by covering the inside of the spare tire wheel with clear packing tape and giving it a good coat of mold release wax. Next I cut a large ring from MDF and placed it on top of the spare tire. The fiberglass was applied so that it overlapped the upper surface of the MDF ring.

This made the finished molded tub much stronger and made it much easier to remove from the spare tire after molding. After the resin cured I cut another MDF ring to mount my subwoofer into and joined it to the MDF ring that was molded into the fiberglass tub. I used some sealant between the two rings and also screwed them together.

Then I drilled a hole in the hole in the MDF for my subwoofer wiring and applied sealant to it after I ran my wiring to the woofer. The last step was to bolt the subwoofer into place. The volume of the molded tub turned out to be perfect for a 10" subwoofer and it sounds great without taking up additional trunk space- and I get to keep my spare tire! Question 1 year ago on Introduction. What type of chemicals is the foam made of? Reply 11 months ago.

Question 2 years ago on Step 1. Quck question, I have access to a bus front end that has beautiful patina and I want to make a mold of it. The owner doesnt want me to damage it. Ive done molds before but was considering wrapping the front in the tall package wrap used for large pallets and shipping boxes. Do you think release agent would melt it or should i wrap multiple layers? Do you recommend something else to allow me to make a rough mold without damage to the nose? Answer 1 year ago. Question 3 years ago.

The other thing we need to look into is merging this stuff with polymers. Any imagination may get the job done faster. Question 3 years ago on Step 4. I want to ask anyone about any experience they have had with this resin and clear plastic soda bottles.

In a VW history book by Phil Patton, there were prototype cars for china. The bodies wee made from soda bottle plastic and they had 3-cylinder engines. The Chinese said no thanks! My suspicion is the plastic is better than ordinary plastic.

Was told it can be ground into polyester and made into carpet fibers. OKAY here goes, I want to speed up production! If soda body plastic will work as the shaped object, then all we need to do is laminate the sucker which is time costly by itself. In the situation of building cars, it seems we need one metal prototype that then goes into a giant VACU-FORM, the coke bottle plastic is then shaped to car body components shape If the resin does melt the plastic, we may develop a spray chem that will shield it.

As auto body shop polyester spray fill should apply a barrier to the plastic that the resin may not penetrate. But if the resin curing gets too hot then it could warp the soda bottle plastic form.

Then we need a tougher plastic. But thin enough that it can be heat pressed into any shape we need. If not, do you know any type of foam for molds that can cure in an autoclave? Any ideas on how to make a carbon fiber monoplane?

A fellow peer of mine and I are constructing one for Science Olympiad and we were thinking carbon fiber would be a wise decision of material.

Reply 4 years ago. Sorry for the late reply! I honestly wouldn't even know where to begin on a project of that scope. I would look for a forum about homebuilt aircraft or maybe contact the people at Aircraft Spruce. I am trying to make a glass fibre epoxy resin composite with thickness of 5mm by hand layup method. I used four layers each at orientation difference of 45 degrees.

How should i go about it? Please help. Thanks :. The only methods I know of to obtain a desired thickness are to either add more layers or sandwich something between layers to form a core. Cores are often foam sheet or even balsa wood. I came here because I was looking for some fiberglassing techniques since I'm molding some skirts onto my show car and doing a custom sub box in the hatch area. I'm also doing a custom front bumper lip since they don't have any ready made ones for my car and I was going to use a friends lip that has a nice design but I am going to add to the top of his lip to make it fit my bumper better.

This was very helpful for me. Thanks man! Im new to cars and all of this but I want the experience of doing this. I'm thinking of sanding down to the wood on all of the wood interior of the car. Possible process: make mold, lay carbon fiber to the original thickness of the resin on the parts beforehand, and use a strong adhesive like clear JB Weld.

My question is, do you think this will work? My car is Mercedes Benz C if you need a reference. Yes, I think that would work. So are you molding an entirely new piece or are you adding a carbon layer to the wood trim piece? So I'm trying to make a mold of a laser rifle from fallout, how much would it cost to make? Using method 3. The best way to do that is by making a matrix mold sometimes called a mother mold.

This involves building up a layer of silicone on each half of the rifle and then this is supported by a fiberglass jacket.

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