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#11
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"rasmus" wrote in message ups.com... The polyester resin sound good, but does it adhere to glass? If you look at any Silicone, or Silastic products, regardless of manufacturer they have one thing in common. They yellow under UV light, so if there is any sunlight exposed to this mosaic object, get ready for it to yellow, radically and obviously. and the surface never gets hard, always the rubbery "feel" to it. Casting resin is neat stuff, here in the US, several years ago, and somewhere they are probably still doing it, Cyprus stumps were made into tables using the resin, brushed onto the stump portion to seal the surface, (bugs were trapped inside?) and the resin was poured over the sliced tree section to create the top, with a smooth as glass surface that was impercious to "moisture rings" that plagued the "good" furniture. The resin will most certainly stick to glass, but what it really is doing is encapulating everything, it fills gaps under your tiles and seales the surface also. Make a small experimental piece and try it. Should be available across the pond, don't know why it wouldn't be. Its a hobby Item. |
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#12
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If you look at any Silicone, or Silastic products, regardless of manufacturer they have one thing in common. They yellow under UV light, so if there is any sunlight exposed to this mosaic object, get ready for it to yellow, radically and obviously. and the surface never gets hard, always the rubbery "feel" to it. Okey, so Silicone yellow under UV light, that is no good. Well, the Cyprus story was pretty convincing. Searching for Polyester Resin on danish web-sites are pretty depressing though, it gives me about 200 matches all about health care regulations and so. I am sure they have it, they just like to pretend that they don't. I found one place okey, but the resin wasn't transparent. Any Product Names that can give me an entrance? |
#13
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Try
casting resin Europe pulls up a number of obviously non-safety items in Google. -- Mike Firth Hot Glass Bits Furnace Working Website http://users.ticnet.com/mikefirth/hotbit47.htm Latest notes "rasmus" wrote in message oups.com... If you look at any Silicone, or Silastic products, regardless of manufacturer they have one thing in common. They yellow under UV light, so if there is any sunlight exposed to this mosaic object, get ready for it to yellow, radically and obviously. and the surface never gets hard, always the rubbery "feel" to it. Okey, so Silicone yellow under UV light, that is no good. Well, the Cyprus story was pretty convincing. Searching for Polyester Resin on danish web-sites are pretty depressing though, it gives me about 200 matches all about health care regulations and so. I am sure they have it, they just like to pretend that they don't. I found one place okey, but the resin wasn't transparent. Any Product Names that can give me an entrance? |
#14
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On 29 Jan 2005 11:05:15 -0800, "rasmus" wrote:
I didn't know that silicone came in so many variations, even self leveling silicone (that seems to be the thing). I am curious to try the GE RTV655 from GE Silicones. But of course, when looking for distributors of this product in Europe, I could not find any. Well, now I have something to look for. thanks... Try http://www.tiranti.co.uk It's the website for Alec Tiranti Ltd, who specialise in sculpting materials, so deal in moulding materials (clay, plastic, silicone, wax, etc). They also have the following polyurethane rubber: 'DE009 Crystal Cast Flexible Water-Clear Polyurethane Rubber. Description: A liquid rubber compound designed for use in cast sections of 2mm to 50mm. For applications that require absolute clarity and resistance to sunlight. Applications include making clear cut moulds, model reproductions, special effects and prototype parts. (Caution: this product is intended for industrial use only. Please read Technical Bulletin and MSDS before using.) Crystal Cast DE009 cures at room temperature with negligible shrinkage. Cured castings are clear, flexible and UV stable. Mix ratio: 2.5A : 1B Shore A Hardness: 60 (at full cure) At 20șC: Gel time: 20 - 40 minutes De-mould: 3 hours Full Cu 24 hours' Sounds like the kind of thing you want ? I used this compnay's products on a project about twenty years ago and found them very helpful. They also have a shop (info for those based in London), very good for browsing in. If you're not sure how to start with their stuff, they sell useful cheap booklets with quick how-to's and safety info. As I recall, most of these items are pretty unpleasant to work with, and disposal is tricky as they can self-combust. Have fun Martin @ Strawberry Hill |
#15
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I know this is an old thread, but for the record: I've used Goop products
many times for mosaics, and they have such a strong odor that I've quit using them. We put tiles on a glass bottle once and the smell lingered for literally weeks. I haven't heard of this problem from anyone else so maybe it's just me, but that would be odd since I don't have a very good sense of smell to begin with. Anyway, I'd try smearing some Goop on a small board or something and see if the smell is objectionable after a few days before I went ahead and used it on a large scale. Ditto for epoxies, as someone suggested, although once they cure the smell drops off quickly. - S Richardson St Louis MO "Mike Firth" wrote in message ... Look at E-6000 and the related Goop products, most of which are clear. E-6000 is self leveling, very strong, and clear and harder when set that silicone. If exposed to UV it will gradually turn brownish and loose grip. UV-6800 is more resistant and is supposed to be clear, I haven't seen it. Marine Goop is clear, more pasty than E-6000 and supposed to be more UV resistant. On the web site http://eclecticproducts.com/goop/adhesives.asp by carefully examining the various descriptions you can detect flow and UV resistance. I thought there was a table but didn't find it. By the way, E-6000 is VERY stinky, do not use it in the house unless you have superb ventilation and a strong nose. While GE Silicone adhesive is pasty, GE RTV (Room Temperature Vulcanizing) is much more liquid and can be used for making flexible detailed casting molds that will cast at molten lead temps for several uses. It is normally a commercial product. Look at glass industry suppliers like CRL and Somaca here in the states. Because of the difference in expansion, I question whether resin (hi expansion) will work with glass (lower expansion) or will pull away from the edges. The silicone products are flexible. -- Mike Firth Hot Glass Bits Furnace Working Website http://users.ticnet.com/mikefirth/hotbit47.htm Latest notes "rasmus andersson" wrote in message ups.com... I am looking for a Glass Clear material that can be used as a grout/joint(?) for a mosaic. The mosaic is made of small glass tiles so the material has to adhere to glass,(and wood). I have tried with an acrylic paste but it does not adhere very well to the glass, and during evaporation it looses to much volume, and it looks pretty yellowish and not transparent enough. Does anyone here knows of a good tranparent product that might be a solution. (if available in europe, that would be a help too) Thanks alot, rasmus |
#16
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One of the things that people don't notice about Goop and E-6000 is that it
says right on the package that it is a contact cement. Because of the way it looks, people, including me, use it like silicone adhesive - thick and stick it in place a leave it there. But that traps the solvent and it takes a longer time to cure and stinks longer. But if you apply the stuff, push the piece into place and lift it off for 20 seconds or so, and push it back, it sticks instantly (don't try to shift it) and the odor disappears faster. As I said below, E-6000 really stinks. I have found Goop variations to be not so bad, but then I use them in my shop or outdoors when I can. -- Mike Firth Hot Glass Bits Furnace Working Website http://users.ticnet.com/mikefirth/hotbit47.htm Latest notes "Steve Richardson" wrote in message m... I know this is an old thread, but for the record: I've used Goop products many times for mosaics, and they have such a strong odor that I've quit using them. We put tiles on a glass bottle once and the smell lingered for literally weeks. I haven't heard of this problem from anyone else so maybe it's just me, but that would be odd since I don't have a very good sense of smell to begin with. Anyway, I'd try smearing some Goop on a small board or something and see if the smell is objectionable after a few days before I went ahead and used it on a large scale. Ditto for epoxies, as someone suggested, although once they cure the smell drops off quickly. - S Richardson St Louis MO "Mike Firth" wrote in message ... Look at E-6000 and the related Goop products, most of which are clear. E-6000 is self leveling, very strong, and clear and harder when set that silicone. If exposed to UV it will gradually turn brownish and loose grip. UV-6800 is more resistant and is supposed to be clear, I haven't seen it. Marine Goop is clear, more pasty than E-6000 and supposed to be more UV resistant. On the web site http://eclecticproducts.com/goop/adhesives.asp by carefully examining the various descriptions you can detect flow and UV resistance. I thought there was a table but didn't find it. By the way, E-6000 is VERY stinky, do not use it in the house unless you have superb ventilation and a strong nose. While GE Silicone adhesive is pasty, GE RTV (Room Temperature Vulcanizing) is much more liquid and can be used for making flexible detailed casting molds that will cast at molten lead temps for several uses. It is normally a commercial product. Look at glass industry suppliers like CRL and Somaca here in the states. Because of the difference in expansion, I question whether resin (hi expansion) will work with glass (lower expansion) or will pull away from the edges. The silicone products are flexible. -- Mike Firth Hot Glass Bits Furnace Working Website http://users.ticnet.com/mikefirth/hotbit47.htm Latest notes "rasmus andersson" wrote in message ups.com... I am looking for a Glass Clear material that can be used as a grout/joint(?) for a mosaic. The mosaic is made of small glass tiles so the material has to adhere to glass,(and wood). I have tried with an acrylic paste but it does not adhere very well to the glass, and during evaporation it looses to much volume, and it looks pretty yellowish and not transparent enough. Does anyone here knows of a good tranparent product that might be a solution. (if available in europe, that would be a help too) Thanks alot, rasmus |
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