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>> Home > Tags > plasticard

plasticard
plasticard
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

Suspected Seam by Dave M Fleet Admiral!   Posted: 11 days ago
Hi Ed I would not recommend making the angle get some pre formed. Bending plasticard to a sharp right angle is not advisable even with heat as it is very likely to fracture. You should be able to source locally. It is not cheap but will do the job. Dave

Suspected Seam by figtree7nts Fleet Admiral!   Posted: 11 days ago
Hi Dave, Thanks for the recommendation of the Plexus MA360 Adhesive, I will look in to it! and to think of it the other day while I was in the Dollar store, I saw a small chisel didn't think much of it. Who would have thought I'd need it now. I need to look in to getting some angled plasticard! or just some plasticard sheets and make the angels myself! Thanks Mark, I'm afraid the torch idea is out of the question. The hull has a support frame that runs along the inside, so the light won't show on the outside! I think the Plasticard root is the way I'm going. I will keep you all posted...👍 Ed

Suspected Seam by jarvo Fleet Admiral!   Posted: 11 days ago
HI Ed, have had a thought, try putting a powerful torch inside the hull, in a dark room you might be able to see were the light is escaping, i would not try the fillet of glue, this may just pass the problem down the seam, Dave M's idea of plasticard angle will not only fix the crack but reinforce the whole area, lot of hassel i know but with the weight of the hull it will only get worse with movement

Suspected Seam by Dave M Fleet Admiral!   Posted: 12 days ago
Hi Ed I would probably use the back edge of a small chisel to gently scrape the paint from the plastic. To aid adhesion any shinny surfaces need to be gently scoured to allow the glue to penetrate the plastic. as you have some scrap you can see if MEK dissolves the plastic, if it doesn't it wont work. If it's PVC then you will need a PVC type glue as methyl ethly ketone is for plasticard type. PVC is usually used for guttering etc, I would be surprised if it was used for your model but it would explain the poor joints. As you can't get inside you will need to add a cover all round the boat over the join. You can get angled plasticard which would certainly help strengthen the join especially as it is carrying the 21lbs weight. The added benefit would be a neat edge all round. You can shape plasticard by heating in warm water and bending to shape. If you tape in place it will retain the shape when it has cooled. You might also be OK using your Z -poxy providing you roughen the angle and hull where they join. Dave

Sad News by Dave M Fleet Admiral!   Posted: 12 days ago
Hi Ed What a bummer. I agree with Mark on how to find the leak(s). I have looked back over your blog and on page three you mentioned the plasticard hull had split and you showed a pic and the subsequent repair. I suspect this or a similar joint where the plasticard is bent may be your problem. You have mentioned resin covering but this may not have been possible. What glue did you use? Plastic can be difficult to glue. Stablitz Express was the best when I used to build the Robbe and Graupner model planes. Not cheap but works. UHU Plus Acrylit ( a direct substitute) is available in the UK, Leeds Model Centre http://www.modelshopleeds.co.u k/ have stock, use the site search to find it. Hope you find and cure. Dave

Wheelhouse roof detail....and a paint problem ! by robbob Fleet Admiral!   Posted: 1 month ago
Because of the curvature of the wheelhouse roof the searchlight, mast, aerial and other fittings need some shaped wedges to sit on so that they sit vertically, this is particularly important for the searchlight as it is designed to rotate. I cut and shaped some plasticard for these and when I was happy with the angles I superglued them in place on the roof and used a small amount of filler to blend them into the roof profile. Similar spacers were made for the anchor where it sits on the forward cabin roof as well. After masking off the surrounding areas I sprayed a coat of Halfords white primer on the roofs and immediately noticed that the paint ‘crazed’ very badly for some unknown reason. I had used panel wipe to clean the roof before painting and was spraying over previous coats of the same primer so this was really disappointing to see 😭 I had to leave the paint to harden for a couple of days and set about stripping it back to the base coats as much as possible and then re-masked and sprayed again….only for the same thing to happen again 😡 This was despite pre-warming the can and shaking it thoroughly for the prescribed two minutes. To cut a long story short I discovered that the new can of white primer that I had recently purchased was faulty and it was spraying considerably more solvent/carrier than pigment and this heavy overload of solvent was the cause of the problem. Halfords replaced the paint without argument but I had to wait another couple of days before I could remove the paint and start over again for the third time. Happily the replacement paint was OK, the re-spray was successful and the final gloss coat is to a reasonable finish but the whole process set me back a couple of weekends and was a very frustrating experience 😞 An isolated case I’m sure but after previously stating that Halfords paint was OK, I now reserve my judgement and remain cautious with their paint, and I now do more test sprays just in case…..

The life rings. by robbob Fleet Admiral!   Posted: 1 month ago
The white metal life rings supplied in the fittings kit not only look flat and uninteresting but more than that they weigh in at 57 grams individually and along with the rest of the metal fittings above deck will raise the centre of gravity quite a lot and may affect the roll of the hull on turns. Well that’s my theory anyway and I’m using it to justify replacing them with something lighter and more pleasing to the eye. I found some plastic ones on eBay that were roughly the same diameter for a couple of pounds each that looked ideal. The rope detail needed to be added to them to replicate the originals and this was done with some nylon cord that I superglued into slots filed into the circumference. I then wound seven turns to form the quadrants, securing each turn with a spot of glue and ensuring that the ends all arrived on what will be the underside of the rings. They were then sprayed with a couple of coats of white acrylic and the red bands brush painted. The weight of the new life ring is 19 grams, exactly one third of the metal one and it looks, to my eye, a million times better 😁 To locate them on the engine room roof I cut some 3mm plasticard wedges and superglued them in place, the actual fixing will be two small screws from the underside of the roof. The white metal ones will make ideal ballast weights if I need to make any adjustments 😉

White metal deck fittings. by robbob Fleet Admiral!   Posted: 2 months ago
In between coats of black paint there’s time to prepare more of the white metal deck fittings. They all require a bit of a clean up to remove casting lines and flash, and this is easy to do with an assortment of small files, blades and a small suede shoe brush with brass wire ‘bristles’. After a quick clean up with panel wipe I fixed them all to a piece of card with small strips of double sided foam tape to stop them getting blown around by the pressure of the spay can and gave them a couple of light coats of etch primer. To assemble the anchor I used some 2mm brass rod with some brass ends made from some larger diameter brass rod, drilled and filed to a pleasing profile, a bit of plasticard was added to neaten the pivot point and the assembly was also given a coat of etch primer. The cooling water outlet tube and flange and the dummy exhaust ports (adapted portholes) were primed also. They’ll get a coat of black gloss before they are fixed to the stern. I’ll tackle the fire monitors next…

Strips by manyboats Lieutenant   Posted: 3 months ago
The pictures are slightly out of sync but no matter...Now ready for the chine (cedar) and spray rails from triangular section plasticard strips glued with rubberised cyanoacrylate. Paint used was auto acrylic spray cans; lots of filler primer sanded back and a couple of topcoats.. I thought masking the waterline would be a problem but using thin lengths of blue masking tape to get the line then adding full width with paper mask, it worked out fine.

The Mast - part 2. by robbob Fleet Admiral!   Posted: 3 months ago
I made a fitting from some 1.5mm copper wire formed into loops for the rigging which will attach to the top of the mast, all this was epoxied into place on the main body of the mast. Hiding the wiring invisibly down the mast legs is not possible so I just superglued it in place, one wire per leg, and when painted it blends (sort of!) into the leg profile and is not too conspicuous. The feet of the mast legs were hand drilled with a 2.5mm bit in a pin drill and 3mm stainless steel studs wound into them, the white metal is so soft that the stud self-cuts its own thread. I have cut and shaped some plasticard wedges to go between the metal feet of the mast and the cabin roof so that it sits properly on the sloping roof when bolted down on the studs. I will need to find some 1/12 scale rigging blocks and cord at a later stage and perhaps an RAF ensign flag If I can find something suitable, I think BECC have a range.

Priming the hull. by robbob Fleet Admiral!   Posted: 3 months ago
Thanks for the suggestions, I think I will use lime or maple and then do a test piece with some .5mm black plasticard for caulking. BTW Stephens site upgrade will allow pictures to be uploaded in message responses, a feature that is something you previously expressed a wish for, and I can post more than 4 picture in my blogs too, thank you Stephen 👍 and Happy Christmas to one and all 😀

Gay Class 32 by muddy Lieutenant   Posted: 6 months ago
[Score: 8/10] 26" Gay Class 32 Capable of 10mph and a runtime of 30mins Single Propellor (3 Blade 35mm) Direct Drive to a 777 (3 Blade) Powered by NiMH (7.2v) 3Amp/h Batteries Controlled Through Electronize (15Amps) ESC - Comments: Converted to an easy-Build as like the GG Model Boat Plans, all balsa hull and ply Plasticard upper-works.

Making tubes from plasticard by KenoThompson Sub-Lieutenant   Posted: 10 months ago
What a star. haha Nice to have connections . Ken

Making tubes from plasticard by octman Sub-Lieutenant   Posted: 10 months ago
Ken, thanks. I did try that but was not too happy with it. I attended an astronomy club meeting last night and one of the members said that he could machine me what I need out of a chunk of aluminium so it seems problem solved. Chris.