Jaggzuk Posted March 6, 2016 Share Posted March 6, 2016 Yes I would agree, there are quite a few plaster bandage products out there for model railway scenics. I can't remember the one I used on my current layout, but it was really good as a way of creating land forms quickly. The instructions suggested 3 layers, but I managed to only used 2. I think this all relates what substrate you use to actually create the land form shape and how flexible it is and how resistant it is to being damaged/punctured once covered in plaster. I used a medium density polystyrene and with two layers it has resulted in a rock hard surface. I also had a go at creating my own using cheep cotton dish cloths and a modeling plaster. While it worked, I found the cloth once wet and impregnated with plaster slip, the resultant cloth was too limp to be layed as sheets. So I would seriously recommended using the pre impregnated cloth that come as a roll. So quick and the results were very good, to me it outweighs the cost. Link to post Share on other sites More sharing options...
ben pez Posted March 6, 2016 Share Posted March 6, 2016 Was the stuff you obtained from jewsons foil faced? Had a look today and the recticel stuff they have in is all foil faced. Yeah it has the foil on both sides. On my layout when ive been building scenery,i pull off the foil on both sides. You need to remove it on both sides otherwise it will bend,then i cut and carve the stuff up to suit. Mike Link to post Share on other sites More sharing options...
ben pez Posted March 6, 2016 Share Posted March 6, 2016 As for what to use on top of the insulation foam.. Ive been using plaster bandage or modroc. I just buy it in rolls via ebay. Ive found two layers of the stuff,and smoothed over with my fingers sets just fine. Cheers Ben Link to post Share on other sites More sharing options...
Gialloblu Posted May 20, 2016 Share Posted May 20, 2016 Sorry for ignorance, Which version of Recticel is the correct one to use that is extruded polystyrene? Is it the "Eurowall cavity board"? http://www.jewson.co.uk/search-results/?keywords=recticel I looked on the technical sheets but none of them mention "extruded polystyrene"! Grateful for any help! Link to post Share on other sites More sharing options...
RMweb Gold Re6/6 Posted May 20, 2016 RMweb Gold Share Posted May 20, 2016 It looks to be more like the crumbly Celotex™ which isn't really the stuff needed...but not sure until I've seen some! I'm going into my local depot next week and will have a look at it (if they keep it). Link to post Share on other sites More sharing options...
Gialloblu Posted May 21, 2016 Share Posted May 21, 2016 Wickes had some xps Extruded polystyrene on the shelves today. Started at £30 for 25mm thickness 8x4ft board. Link to post Share on other sites More sharing options...
ben pez Posted May 22, 2016 Share Posted May 22, 2016 Its none of them on that jewsons link Cheers Ben Link to post Share on other sites More sharing options...
ben pez Posted May 22, 2016 Share Posted May 22, 2016 http://assets.jewson.co.uk/product-images/572/Main/572.jpg This is the stuff you want Link to post Share on other sites More sharing options...
ben pez Posted May 22, 2016 Share Posted May 22, 2016 Just took this pic of the 50mm stuff ive been using on my layout Jewsons sell it in various sizes & thicknesses Cheers Link to post Share on other sites More sharing options...
Gialloblu Posted May 25, 2016 Share Posted May 25, 2016 Can you remember what the name of it was please? They seem to have a few related "Recticel" products. Is it extruded polystyrene or polyurethane do you know? Sorry for all the questions Link to post Share on other sites More sharing options...
Stanier16 Posted May 25, 2016 Share Posted May 25, 2016 This is a very interesting topic! I'm considering building an 8ft x 2ft potable shelf style layout in 00 gauge. It would be analogue. Using extruded foam is an option, as my woodworking skills are abysmal. i would really appreciate any insights, as I have a very tight budget. Thanks. Gary Link to post Share on other sites More sharing options...
Fat Controller Posted May 25, 2016 Share Posted May 25, 2016 Can you remember what the name of it was please? They seem to have a few related "Recticel" products. Is it extruded polystyrene or polyurethane do you know? Sorry for all the questions It's a polyurethane foam, faced with aluminium foil on both sides. I first encountered it about 30 years ago, when the brand name was 'Coolag'- we built an insulated warehouse within a larger warehouse using it at the former Kaleidoscope site in Banbury. Best cut using a knife, perhaps one with a finely-serrated edge.. A common brand these days is Celotex, for example https://www.insulationsuperstore.co.uk/product/celotex-tb4012-zero-odp-rigid-insulation-board-12mm-x-1200mm-x-2400mm.html?gclid=Cj0KEQjwmpW6BRCf5sXp59_U_ssBEiQAGCV9GuMjFlKAtF4v1nwoOvyUbvL7FytBpdbDWXuPOFqvVFMaAnv78P8HAQ Link to post Share on other sites More sharing options...
ben pez Posted May 25, 2016 Share Posted May 25, 2016 I should add ive been using this stuff for scenery NOT baseboards,so i can't comment on what it would be like for that purpose. As for cutting it,i just use a bread knife,cuts very easily and doesnt make a lot of mess. Cheers Ben Link to post Share on other sites More sharing options...
Gialloblu Posted June 10, 2016 Share Posted June 10, 2016 Is 'yelofoam' decent and generally available at jewson? Link to post Share on other sites More sharing options...
RMweb Gold Re6/6 Posted June 11, 2016 RMweb Gold Share Posted June 11, 2016 I should add ive been using this stuff for scenery NOT baseboards,so i can't comment on what it would be like for that purpose. As for cutting it,i just use a bread knife,cuts very easily and doesnt make a lot of mess. Cheers Ben I would heartily agree Ben. It lacks 'cohesive' strength and is too crumbly for my liking. I have used a very small amount of it in a baseboard alteration on Balcombe' but my stock of 'Celotex' that I use for scenic work is prone to warping, not a problem for small pieces cut and glued for that work and if my method of side framing with 4mm ply and non-solvent grab adhesive is used it wont take large woodscrews that I use to retain the ply as glue goes off. It saves all that clamping up. The harder 'extruded pink/blue polyfoam will take large (No12 x 4" or whatever is convenient) being nipped up before it starts to turn. Sufficient to pull the 4mm ply tight with the glued polyfoam. These can be picked up with one hand and have remained absolutely flat and true. All the end plates are being replaced by Tim Horn's excellent laser cut ply ones thus ensuring that the position of the patternmakers dowels is spot on each time. The framing/bracing that I use is 33mm x 16mm (or thereabouts!). Link to post Share on other sites More sharing options...
bertiedog Posted June 11, 2016 Share Posted June 11, 2016 Never bought any foam and never will, if possible, just save all the poly packing blocks that come with everything!! or check any home restorations nearby and bin dive with permission to get insulation offcuts! All can be treated with fire retardant if you desire or you insurance insists, before applying the finishing plasters and top paints. Expanded foam is actually useful, as pulling and pecking at the bubbles leaves a pretty useful rough finish for walls and landscape stone work. You can't do it so easily with solid insulation foams. I use plaster roll for some surfaces and ceiling grade flexible paint for most other bits, in two or three coats. All hollows are supported with Bristol board cardboard off cuts, or vertical ceiling tiles, cut to shape. Glue is PVA throughout, but in various grades or contact versions, none attack any foams. Stephen Link to post Share on other sites More sharing options...
Gialloblu Posted June 27, 2016 Share Posted June 27, 2016 Any recommendations for online Styrofoam/extruded polystyrene suppliers? Link to post Share on other sites More sharing options...
kryten65 Posted June 27, 2016 Share Posted June 27, 2016 I bought 2 8ft x 4ft sheets of 25mm pink extruded foam from the trade counter at the newcastle branch of Encon Insulation http://www.encon.co.uk/products/view/344/knauf-insulation-polyfoam-eco-floorboard-26t-v Then had to "rearrange" the 8x4 sheets to go in the boot of the car! Bonus is its not far from an industrial plastic sheet supplier! Link to post Share on other sites More sharing options...
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