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>> Home > Tags > fiberhull

fiberhull
fiber glass
fiberglass
fiberhull
Fiberglassing by Trillium Commander   Posted: 1 day ago
I have read on this forum and others that fibreglass has no strength and am puzzled by these comments. Fibreglass is commonly used for building the hulls of full-size boats, including lifeboats, which implies that it has considerable strength. Admittedly, their hull walls are much thicker than on a model boat, but the strength is there. I have seen a fellow model boater take a hull made of balsa, which had been coated with fibreglass and bang it on the edge of a table, with no damage. As we all know, you can poke a finger through untreated balsa. Finally, some data is provided on wikipedia that fibreglass impregnated with polyester resin has a tensile strength of 8000 pounds per square inch. So some clarification of the 'no strength' comments would be appreciated. Roy

Dr. Ing. Sander by Inkoust Lieutenant   Posted: 7 days ago
The German model of fire boats. Hull with plankováním-wood, fiberglass superstructure. Drive 2 pieces motru 400 with gear ratio 1: 3, used customized truck from washer pump and powered by the 400 system. Complete illuminated flagpole, lights, cabin space and marker lights. Lifting the fire escape personally manufactured servo. Two functional water cannons. Batteries 2 pcs NiCd 3000 mA

Fiberglassing by Dave M Fleet Admiral!   Posted: 8 days ago
Hi chugalone 100 Welcome to the site. You can fibreglass with different types of resin and cloth. If you are making and casting a fibreglass hull use fibreglass matting but to cover a hull lightweight fibreglass cloth is best. This is the type shown in the suggested video. Resin can be epoxy or polyester based but the latter is generally cheaper and in my opinion is easier to use and doesn't require thinning with alcohol. It is sold as layup resin and is supplied with hardener. Do follow the instructions re quantity of each part and mix thoroughly. If you are using epoxy Iso Propyl Alcohol is the type to use and is clear. The video shows using a brush to apply the resin and whilst this is OK it will give a very thick and heavy coating. I use the brush to apply and then a credit card sized piece of plasticard to spread the resin over and into the surface of the cloth resulting in an almost opaque finish with the weave showing through. You do need to have a good surface to work with as any imperfections will show when the resin hardens. Once dry give a light sanding all over to remove any imperfections and fill any holes with car body filler and sand smooth. I then apply a very thin top coat of the resin using a brush. When dry use wet and dry to sand and if necessary apply further thin coats until you have the finish you require. I have a local supplier and if you visit the site http://www.resin-supplies.co.u k/product.htm all the resins/cloths etc are listed. Using Google should bring up a local supplier. you do need to follow the safety instructions to protect yourself and wear appropriate protection for your hands, eyes and breathing, it is also best to apply in a well ventilated area and not on a cold day. The end result will be well worth the effort to keep your tug waterproof. You could also paint the resin over thye inside of the hull to protect the wood from any water that doeos find its way inside. Dave

Build Update by Pav403 Commander   Posted: 8 days ago
Hello all, Hope you are well? It's taken a while to get to where I am but I can start to see some real progress. I've managed to get the main superstructure complete, they are at a stage where they could be connected to the deck if it was ready. The Hull is now covered in a layer of Balsa, it does now need a lot of rubbing down so I can then look at applying a layer of fiberglass. I've not ordered this yet but I have seen it advertised at Cornwall Model Boats. If anyone has any suggestions on how to fiberglass I'm happy to hear any advise as this will be my 1st time. Good luck with your builds Regards Dave