Originally Posted by whacker82 no problem, whats in the picture with the paint, serenge, and cat.
The only thing I can think of for you and all of us, is to make sure you do a test before the full job on the next boat, in case they send you some more typical stuff that sets up like most others have found.
Location: ireland its only a one speed orbital sander, i bought it on a whim. I would also second coat over the top !!!, but tint the second coat a slightly differant colour!!
To make the whole job go quicker mix a little laminating resin in with the second gel and mix well and apply with a paint roller ,its quick ,its easy and makes a good job thats smoother and not so many thick and thin places like brush marks !!!.
Never mix new brews in the old pot always mix it in another pot and place the old pots close to a door and keep a eye on them !! Me i use a small paint stirer in a variable speed cordless drill !!, you not making milk shakes and its not whipped cream so stir it gently and slow the drill down as you lift it out and wash it straight away dont leave it to go hard !!!.
The first skin of glass If you want you can also use tissue and when it hard the 300 csm over the top . The layers from this point are completely up to you and depends how thick you want your mould to be . The resin catalyst ratio needs to be constant through out the build and do a couple of layers of 450 csm p matt and leave for a couple of hours to harden and warm and cool out completely and then another couple and carry on till its finished to the thickness you want . Be gental and dont blow heat directly at the mould and get the temprature up to 30 c plus and hold it there for a couple or 3 hours and then let it coolout over night !!!.
Its about this time you need to take a tranquilized or two with you morning coffee smile to yourself and take a change of undies in your pocket when you unlock your shed door !!
The flange on the mould you can rond and make a fibreglass gunwhale and use the join to fit a clip over join fender strip later of you wanted .
Always use P matt its softer and wets out much better, quicker, and more completely there for can be a percentage stronger !! Location: ireland just about answered all of my questions, i did read somewhere about applying tooling gel, not (gel coat) that when applying it not to leave it cure completly for making moulds, any one heard of this too?
The paint roller need to be a medium length hair so it hold a good about and you get it on . When making potentially dangerous or financial decisions, always employ and consult appropriate professionals.
Location: CHCH, New Zealand Creating a compound curve mould with vaccum or pressure alone.
It is my observation that vaccum infusing one piece complete hull sides is a great idea, but what about when it comes to all the compound curved parts? I thought about natural ways that compound curves are created, an inflated balloon is a compound curve, and pretty much the basis of the idea.
Just rough pictures to show the idea, the first picture shows two full hull length infused flat panels, the second shows the inflatable membrane placed on the flat panels and partially inflated, the third shows the membrane inflated more.
Location: Tasmania,Australia yes - it will work, and has worked for many projects. Location: Milwaukee, WI It will most likely require more fairing than other methods, but it will work. I was hoping that the method would produce very fair compound curved panels, just as fair as flat panel layups, the idea being that all the parts of the boat get taped together and there is very little fairing required other than the joint areas. Location: New Zealand The balloon is fair because its round in section, there are no flat edges to deal with.
The ultimate shape will depend on the elasticity of the membrane material, the span and how you restrain the edges.


If you wanted to influence the shape of the keel line for instance you would have to alter the tension or the edge clamping along the length, to let it move more where you want maximum rocker. At best it would be like using tortured plywood to form shapes, repeatable but with alot of trial and error to get what you want, and most likely some shapes you want would just not be achievable. Why dont you try it out an model scale, all it would take is a plywood waterline profile (your chine), inner tyre tube and a bike pump. Location: Tasmania,Australia I have used 'tensioned fabric' formers myself, with mixed results. I don't have pictures now, but I had to 'fill in' a pod on the side of a Proa, and the edge of the pod was a square, that had to intersect with a double-curved hull. It would have been hard work to make a mould to handle the compound curves, so the easiest way was to stretch nylon between all the edges, and pulled it really tight. In both cases, the curing Polyester resin distorted the surface of the fabric, and cured 'bent', which mattered little for the Proa deck, but looked really bad for the Kayak.
If in both cases had used some inflation to 'stiffen' the fabric, it would have resisted the distortion from the curing resin, but then, it would have also altered the shape. The proa deck could have been enhanced by laying plastic bags with sand in them on top of the fibreglass, to force more bend in the pod. So, laying glass on tensioned fabric works fine, but the fine control over the finished shape is the problem, as JRD explained so well. Ampere locate consecrated to unpaid boat building with an on line catalog of gravy holder plans and kits bulletin board project registry builder photos news letters.
Today, SSF has built over 100 fishing boats for Gilontas and extended the boat sizes from 50 tons to 300 tons. For the last 30 years, SSF has been working closely with Gilontas to design and build innovative fishing boats. From boat design, boat mould design, fiberglass selection, boat lamination, boat wiring and plumbing, boat home furnishings, boat quality assurance and boat shipping.
For the last 30 years, SSF has built various boat freezers with temperature ranges from -55 to -1 degrees as Gilontas becomes a deep sea commercial fishing company.
SSF started to deliver extreme low temperature cooling system 30 years ago, their skillful technology permitted them to sell internationally including to Indonesia, South Korea, Panama, etc.
I've new questions tomorrow regarding the mould build ok Its solves one lot of problems and creates heap of others !!
Flange is to help stop the mould from changing shape over time its also a place used for lots other things as well . Its easy to see where you have done and dare i say it if you have to do any sanding at any time in the future theres a colour signal to tell you ,you have gone through the first coat . For a small mould like you got 8 layers of 450 csm should be ample dont spare the resin as you are doing it !!. You can cut and grind the very edge of the flange then remove the flange and gently release round the whole of the top of the hull with a wooden wedge and bump it down between with you hand !!!Remember never hit the mould with anything !!! Once the desired compound curve is designed, a frame is made that will most likely produce the desired compound curve, an inflatable membrane is placed between the frames, the membrane is inflated till the desired shape is attained, the membrane is then left inflated at that pressure while a layup is done on it, either the finished product is created or a mould created for vaccum infusion.
The reason I used a line drawing is so that I could show the uniform curves, to give a realistic impression of shapes that could be created. Also the length to breadth ratio will affect how the part deforms due to differring amounts of tension in each direction at equal pressures.
I dont think you will easily get the result you are after, but it would be entertaining to try if you have a couple of spare hours.
If I had inflated the kayak, it would have stopped the curing distortion, but created a 'fat boy' effect where the fabric bulged from the air pressure.


Gilontas has become one of the world’s leading commercial fishing companies, scattered around the Pacific, Atlantic and Indian oceans with many employees and various fishing boats conquering oceans worldwide. This is why Gilontas is a leading fishing company in the world, currently their fishing boats' tonnage ranging between 50, 70, 80, 200 and 300 (39m) including squid, torch light and tuna fishing boats.
Besides more than 40 years of seasoned boat building experience, when fishing companies request boat designs based on their requirements, SSF turns clients' requests into design sketches. I guess there is always the chance they gave you old or spoiled stock, but proving it one way or the other is probably more trouble than it is worth. Here the company gets just the fingers they look like condoms for dwarfs maybe they are just chinese size ! This will give the top edge of your mould a good stiff edge and make the mould hold its shape better over time and give it protection plus can hold the edge of the hull secure while you are laying up the boat !!! Or you could use 3 layers of 450 csm plus a 3mm core matt do the core matt will save resin and make you mould stiffer and just finish with 1 x 450 csm oner the top but do it at the same time as you lay the corematt . Using the same idea but a vaccum rather than postive pressure will create the opposite mould. Products have been selled well in Europe, the Americas, Japan, the Middle East and Southeast Asia. Bruce Roberts Yacht Designs offer boat building project management building plans and kits available for building sword boats fiberglass boats erstwhile you have got installed the mould lining you should. Strike Building A Fiberglass sauceboat How To Here http NewBoatPlans Many companies sell small fiberglass boat plans. Those vessels have assisted Gilontas to go beyond the territories - from shallow to deep-sea fishing. SSF is capable of providing design sketches after a series of consultations and communications.
Resins i always use 20 litre pails and give them a goo shake each time i take any out the company i get my stuff from will sell 20 litre at the bulk rate and that makes a differance . Laying glass over the core mate at the same time makes sure the core matt is completely wet out !!. If all those coats of wax and the wiped on release agent have done there work then simply wedge the transom open aways and a bucket of water poured down between the transom and the mould and you should very quickly have lift out ! Our business objectives are: integrity management, quality services to ensure quality and common development. Knowing SSF has been making boats for years, they ordered their 1st 50-ton fishing boat and their 1st FRP squid boat from them.
No its not blotting paper and for a given thickness will use a lot less resin that the solid glass !!
I've searched youtube and the forums and I can't find anything like what I'm thinking of so I thought I'd post it up for your thoughts on it. BTW I'm imagining the finished surface is the one contacting the inflated surface, if that helps to clear things up.
If you bought the plans for this boat or an epoxy glue fiberglass trial kit you received ampere dicount voucher for up to 50. Because both companies are run by 2nd generation entrepreneurs and their hard work ethic is inherited, a long lasting cooperative relationship was created.



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