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>> Home > Tags > resin

resin
aliphatic resin glue
epoxy resin
resin
Changes in latitudes by Jerry Todd Lieutenant   Posted: 1 day ago
After the sail I tried to figure out how to make the chain plates. The links below the channel are easy enough, but the doubled rod strap that wraps the deadeye was (and is) giving me headaches. I was originally going to bolt the chainplates to the hull, but instead I intend to use round-headed brass wood screws, and I've installed oak strips inside the hull to give them something to bite into. You may recall I'm modeling the ship as she was new, when her portrait was painted in 1856. There's nearly nothing showing what her stern looked like but one etching done of her in dry-dock in Boston in 1859 when she returned from her first cruise. Several painting of her contemporaries show very similar stern ornamentation. I already had the moldings applied based on the drydock drawing, now I made the three rosettes she still carries today - her "constellation of stars." My first attempt was too think and bulky, so I started fresh with a bit of boxwood, and used styrene to apply details. Once done, it got a coat of primer and then I pressed it into clay to make molds for the casting resin. If I had a "Constellation Restaurant" my butter pads would all be molded like this :) Checking into the fashion of the day for depicting stars and things astronomical, I painted the stars gold on a royal blue background. They were then epoxied to the hull and quarter galleries. Soon after, I lost my job of 18 years, and about a year later had to move out of the house and in with my girlfriend. The models literally went on the shelf. She sat on top of a cabinet for nearly a year when I got an invite from the director of Historic Ships Baltimore to bring the model to the Baltimore Port Expo celebrating National Maritime Day.

Progress Mark 2 by Pav403 Commander   Posted: 2 days ago
Hello all, So I've managed to get back to somewhere near where I was last time. The frame work is of a slightly thicker Ply (1/4") The Keel is straight, frames are all 100% level and I've now used balsa block for the Bow and Stern to give the planking a bit more support and to assist in getting a better shape at both ends. Fingers crossed I will have the hull build in the next few weeks, I can then get on with Sanding and filling before applying fiberglass and Resin to make the hull solid. Uploaded a few photos to show where I'm at. Good luck with your builds. Dave.

Soldering practice ahead of making railings ! by Dave M Fleet Admiral!   Posted: 3 days ago
You should get good results with that iron. Not sure what type of solder you used but the resin cored works well. My local pound shop sells a paste flux in a small tub and this will help the solder run into and around the joint. If you are making adjacent joints with that iron you may need to use damp cloths to stop the heat breaking the already soldered joints. I sometimes use a big piece of copper that I clamp over the parts needing protection. You clearly have mastered the process right from the start and are to be congratulated Dave

water, paint, copper by Jerry Todd Lieutenant   Posted: 3 days ago
The gun deck isn't modeled. I was building a model intended to sail in open water and didn't want to deal with open gun ports, hatches, etc. After glassing the hull, she got beams for the spar deck installed. 3/4" x 3/4", they're probably a bit more than was needed. Tubes were installed for 5/16" stainless threaded rods that would hold her external ballast on. The forward one will be disguised as her galley stovepipe, the aft one is hidden under the cabin skylight. The ballast is a 2" i.d. PVC pipe about 4 feet long, filled with lead bird-shot, and weighing some 42 pounds. With that much done, I took her to the creek to see her float, but I forgot the rods. A few days later I took her out again, remembering the rods, and put her lower masts in her. Now baptized, I applied the moldings and trim on her stern, and built up her enclosed head. Her gunport were molded in resin in the closed position with the guns clamped in the openings and a tampion in the muzzles. These were epoxied into gunports cut from the outer layer of glass and wood battens, leaving the matting in place as a backer. Then she got some paint, mainly because I was getting tired of her looking like a barkless log. The bottom was painted with copper paint, but three rolls of 1/2" wide peel-n-stick tape had just arrived and I started into coppering her bottom right off. Copper plates are nailed on with copper nails with counter-sunk heads through pre-punched holes in the copper sheets. The are FLAT with with a little hollow where they're driven in just beyond flush with the surface. They are NOT round headed nor look like rivets as so many models insist are doing. I pressed an impression of the nails into the face of each plate. Installing them pushes this dent back out and leaves a little circle that looks as it should. It took about a week to do one side, and I took a break to make the tops for the lower masts, then continued onto coppering the other side. It was bright and beautiful when finished, but it wouldn't stay that way. Copper doesn't turn green when submerged, any copper coin will show you it turns brown. I wanted her bottom to brown somewhat, but not too much, and I figured to let that happen naturally. When it got where I wanted it, I'd clear-coat it to lock it in. Two yards of Dupont Supplex cloth was ordered to make her sails. This is the stuff SC&H used on their square-rigger kits and it's great for making sails. Being a nylon, you cut it with a hot-knife, and use a pointed tip in a soldering iron to make grommets. I drew on the panel seams with a .03 marker as even the finest stitching is over scale even at 1:36. Top-cloths, corner reinforces, reef bands, etc, are all cut from the same cloth and glued on with fabric adhesive. The only sewing was of the bolt-ropes. These are done by hand much the way real ones are - I've sewn a few miles of real bolt ropes in my time. There's really no substitute for this if you want a functional scale appearing sail. A machine can't sew it properly, in the right position, or securely.

Constellation by Jerry Todd Lieutenant   Posted: 4 days ago
This model was started in February of 1999, and has been worked on, at best, in fits and starts. While progress has been made, and it's capable of sailing, it's far from finished. It began as plywood paneling pulled from the walls of my first house and cut into frames. It was to be planked with white pine strips, also scraps from remodeling, but I was distracted by a book. Nasty things books, put all sorts of ideas in your head. I got the idea of making a plug for a mold so I could turn out THREE hulls! One for me, one for sale, and one to be donated to the real ship. To that end, and with the inspiration of the book, instead of planking, I battened the hull and sheathed it with brown paper wet-n-stick packing tape. Let's just say, that wasn't a good idea and leave it at that. A lot of life changes happened; moved to a farm; got unmarried, sold the farm, got an apartment, got a house with a workshop, and 10 years later, recommenced work on the model. I continued on with the original plan for about a day when I shifted gears and decided to glass the "plug" and make it a hull. I proceeded to prep it to that end, but looking back, what I should have done was strip it down the the forms and start again, planking it properly. Instead, I covered the outside with 4oz cloth, filled between the battens with poly resin and glass matting. The images show the model from it's start to it's glassing, though the site won't allow me to dictate the order in which they're presented - sorry for that. The model is of the American sloop of war Constellation launched in 1855, and as she appeared in Naples in 1856 based on a painting of her by Thomas deSimone. She is 1:36 scale; 1 inch = 3 feet. Beam: 13-5/8" (34.6 cm) Length on deck: 61" (154.9 cm) Length between perpendiculars (American): 59-1/8" (150.2 cm) Draft, without ballast keel: 7" (17.8 cm) With 3-1/2" ballast keel: 10-1/2" (26.7 cm) Weight, with ballast: Approx. 100 pounds (45.36 kg) Length over the rig: 95" (241.3 cm) Width over the rig: 30.5" (77.5 cm) ~ Main yard w/o stuns'l booms. Height bottom of keel to main truck, without ballast keel: 65" (165.1 cm) With ballast keel: 69" (175.3 cm) Total Sail Area: 2,807.01 square inches in 17 sails (19.5 sf, 18,110 scm, 1.8 sqm) Working Sail Area: 1,836.1square inches in 13 sails (12.75 sf, 11,845 scm, 1.2 sqm)

Dumas Chris Craft finishing by don6398 Chief Petty Officer   Posted: 4 days ago
I completed the Dumas 36" CHRISCraft several years ago. I made sure all of wood planking was completely smooth and minus all dents. I covered the model in 5 oz. fiberglass cloth and cover it with resin/Hardener. The planking immediately shine out. I then did a light sanding and gave it one more coat of resin/hardener. When dried I put some auto wax on it. You can purchase this material in marine stores or a good hardware store. My father and i did this a long time ago a real 22 foot ChrisCraft barrel . We did a small corner of the boat first, you can do the same on the model. We did fiberglass the whole boat so that we didn't have to soak the boat at beginning of the summer

PT Boat 673 by wcolombo Chief Petty Officer   Posted: 5 days ago
PT Boat scale 1/20 length 1.22 m, Motorization one brushless motor and two 550 14 v motors , fiberglass hull, superstructure in acrylic laser cut, details in resin and 3D print.

3D printing by Dave M Fleet Admiral!   Posted: 5 days ago
Hi Doug No I use silicon to make my moulds and Fast cast resin for the castings. The beauty of the 3D is the speed with which I can get an original to make my moulds. Also I can then rescale to the correct dimensions for a different model. Add to that the fact that I can add lots of fine detail that may be challenging if I was making each original. Technological advances are great but it does tend to make us lazy and lose the some of the skills we have developed. I do admire the true scale modellers who make all their own fittings and there are many on this site who produce stunning models from whatever materials they can find. It is good to see Build Blogs that cover a multitude of techniques and skills and it is always interesting to see how others have approached and tackled their project. Such knowledge is fast disappearing and it is sites like this where members share their projects that keep the hobby alive. Dave

Statia Relaint by chugalone100 Petty Officer   Posted: 9 days ago
First and foremost I would like to thank everyone that answered my question about fiberglassing. Your help guided me through the process and I believe that it came out very good, but still needs more work to smooth out the resin and of course I will post more progress pictures later on. The name of the tug is “STATIA RELAINT”. This is one of a fleet of four vessels built by Samakona Yards in Spain. I chose this one because of the stealth lines that has throughout the structure or just because I love how it looks. I am an artist (painter), and we fall in love with colors and shapes, so maybe thats another reason why Im building this particular one. I was lucky to find the plans and enlarge them to 33” approximately 1/32 scale. This will be my FIRST scratch built even dough I have built others from kits, but never like the experts I see in this forum. I will be open for questions, suggestions and criticism. Thank You Julian From Sunny Miami. 😎

Gentlemans Cruiser by muddy Captain   Posted: 10 days ago
Running gear or furniture.. Once the skeleton or frame was completed it's a good idea to dry fit all the running gear, Drive motors shaft's and prop's, plus the radio gear and battery boxes/trays, and even sound unit locations. Then start the skinning. This hull has very curvy bottom skins, in that they turn from the transom to the bow 90 degrees sharply. Tried some test pieces of vertical grain ply, ( 1.5mm ) but it was the same as horizontal grain.. Skins were placed in as large as pieces as possible at about 45 degrees to the keel, or planking in ply.. Not a pretty sight, but makes life a lot easier. The skins were dry fitted with brass pins first, mainly to assist in the cutting of the skin shape. When the bottom skins were completed and rough trimmed the side skins were applied and these were vertically grained, again makes life a lot easier and they fall onto the stringers, means less brass pins and elastic bands. Not forgetting to drill some 1" holes in the breast-hook and No; 1 former, as i always pour in a little Fibre glass resin to help seal the bow section and add some strength. Regards Muddy....

Fiberglassing by Delboy Petty Officer   Posted: 23 days ago
As I recall from my material science studies, a resin coat on its own will strengthen a thin wood panel but it is prone to cracking. Once it has cracked to a certain extent, any strength it has imparted will have evaporated and all you are left with is extra weight. Glass fibres added to the resin act to prevent cracks propagating through the material and add to its toughness. So resin adds strength, glass fibre adds toughness.

Shipborne instruments by Dave M Fleet Admiral!   Posted: 23 days ago
Hi Inkhoust Thank you for sharing the files. It occurs to me that if you make a brass tube with a bevelled edge then put the dial print in the bottom it would be possible to use clear casting resin to make the dial face and at the same time protect the print. I already use this for my portholes so I will try it out and post the result. Cheers dave

Fiberglassing by Trillium Commander   Posted: 30 days ago
I have been puzzled by conflicting statements on the web, some stating that adding resin and fibreglass will strengthen wooden construction, and others stating that it will not. For my own understanding I did some tests, which others may find interesting. These are not by any means scientific, and meant only as a guide for me in model construction. The results show that coating balsa with resin and fibreglass cloth does strengthen it. For those who want to see more detail, these are the results. Three separate strips of balsa, each 18" long by 1.5" wide were cut from a single sheet 36" long by 3" wide, 3/32" (2.4mm) thick. Each strip was placed on top of two supports 10" apart. A load was applied in increments to the centre of the span. After testing each strip in its uncoated condition, each one was coated with Deluxe Materials Eze-Kote resin, according to the maker's instructions, and a layer of fibreglass cloth applied on each side. The cloth was a piece I had spare so I don't know what weight it was, but I estimate between 1 and 1.5 oz per sq yd. After coating each strip was tested again. The results are shown in the chart. The lower the deflection when loaded, the stronger the strip. Although all strips were cut from one sheet, strip 3 was clearly stiffer and stronger than the other two in its uncoated state. It benefited least from the addition of the fibreglass. Strips 1 and 2 showed a significant increase in strength.

How do I resolve my varnish problem? by John Fleet Admiral!   Posted: 1 month ago
I have spoken to the person who built the boat. It is based on a Vintage model boat company design. It was scratch built and is made of strips of mahogany as I originally suspected. Having looked at the Vintage model company site it most resembles a sea hornet, however another kit may have been available at the time it was made. The strips of Mahogany were the builder making use of the materials they had to hand at the time, hence the vertical strips! The interior is covered in fine fibreglass mesh and 3 thin coats of fibreglass resin. Work on the restoration continues!

Couplings by BOATSHED Commander   Posted: 1 month ago
Hi Doug, Many thanks for your advice on the Taycol wiring.The ESC I am using is for reversing as well. I am not too good on the electrics and reading the electrical diagrams. But the centre diagram you have posted seems straight forward to me. I also have a Taycol Double Special that I will be using. Will your centre wiring diagram be the same for use with the Double Special. Also would it matter if a 10amp Bridge Rectifier was used and on a quick search all I can find is at Maplins is a Resin-Dipped Ceramic 100pF Capacitor would this be sufficient. Tom.