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| | | MOULD | | |
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| | | Cross-linked polyurethane designed to produce models, prototypes, and moulds. Easy to handle in each form you need. Actually, the most popular products used for this kind of works are standard polyurethane or 600 Kg/m3 Obece wood. Making a fibreglass mould is relatively easy. But it's much harder to make it so that it maintains that high quality during use without showing serious defects. | | |
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| | | MOULD is environmentally friendly, is not waste disposal. | | |
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| | | MOULD differs from standard polyurethane because it's compact and uniform surface, non porous and easy to handle with the most common tools. Do not produce shaving effects or holes. Compatible with all kind of resins of the market. In relation with the wood, use MOULD let reduce handling process close to 50%. Use this kind of wood present also more inconveniences, due its heavier density (600 kg/m3) and the dust allergic generated when handling. | | |
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| | | MOULD is available in different densities: from 60 Kg/m3 to 160 Kg/m3. | | |
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| | | When making a mould usually we need: • Core material of required density: MOULD light densities for big moulds mean cheaper and lighter moulds for same performance. If we would make a figure using laser or precision tools, MOULD is the best option because its easy and quickly process. • High density resin (1100 or 3000 Kg/m3): once the figure is finished, we must cover the mould surface with a fine layer of high density resin (around 30 mm thickness). This layer would keep the surface though to resist impacts. • MOULD's fine cell avoid use sealing pastes to uniform surfaces, avoiding also handling costs. | | |
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| | | One of the most critical phases of the mould process is the heat transfer. Every material absorbs and conducts heat in a different way, and heat transfer depends mainly on the density of the material (the higher the density the faster the transfer). Making the surface of the mould by combining different materials means non uniform absorption and transfer of surface heat. The differing heat transfer speeds of the materials create superficial temperature gradients and differing hardening times. And this brings the risk of non homogeneous volumetric and linear shrinkage, which is the primary cause of surface defects. | | |
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| | | C/Muntaner, 525 08022 Barcelona(Spain) Tel.+34 934 18 29 29 Fax.+34 934 18 54 71 plasticel@plasticel.es 10 | | |
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