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− | ==Description== | + | == Description == |
− | [3A Composites, Airex AG, Switzerland] A series of white rigid foamboards made of [[polyvinyl chloride]] (PVC). The FOREX® product range has lightweight, stable sheet materials for a wide range of indoor and outdoor uses. The boards can be worked with methods and tools used for wood. The boards may be coated with optional [[polyethylene]] (PE) protective film (none, one sided, or two sided PE coating available). One-sided PE is standard for Forex Classic.
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− | Four grades of FOREX® are available:
| + | Colorless crystals. Titanium potassium oxalate is used as a mordant in dyeing [[cotton|cotton]] and [[leather|leather]]. It is also used as a sensitizer of aluminum for photography (Lewis 1993). |
− | * [[Forex Classic|FOREX® Classic]]: white, lightweight (density=0.7); standard product; PE film on one side
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− | * FOREX® Print: white, economical (30% cheaper); less rigid and resistant (density=0.5); PE film on one side
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− | * FOREX® Color: Tinted (9 colors); density=0.6; cannot be used outdoors; PE film on one side
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− | * FOREX® Smart: PVC-free version made from polystyrene; density=0.2; available as white or black
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| == Synonyms and Related Terms == | | == Synonyms and Related Terms == |
− | FOREX®; Forex®; PVC Board
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− | Similar products include [[Sintra]] (3A Composites), [[Komacel]] (Kommerling), [[Komatex]] (Kommerling)
| + | T.P.O. |
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− | For comparison with alternates, see [[PVC Boards]].
| + | ==Risks== |
− | | + | * Toxic |
− | ==Applications==
| + | * Neoprene gloves and goggles are recommended |
− | * digital printing; screen printing; signage; lettering
| + | * Loba Chem: [https://www.lobachemie.com/lab-chemical-msds/MSDS-POTASSIUM-TITANIUM-OXALATE-CASNO-14402-67-05461-EN.aspx SDS] |
− | * displays; exhibition design
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− | * interior design; partitions/cladding; furniture
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− | * shop design/shop fitting
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− | ==Personal Risks== | |
− | * Harmful to health when inhaling or ingesting dust and vapors during unpacking, sawing, grinding and thermoforming. | |
− | * Ensure good ventilation and dust extraction on processing machines and at other places where dust may develop. | |
− | * Hazardous thermal decomposition products: Hydrochloric acid (HCl), Carbon dioxide (CO2), Carbon monoxide (CO) | |
− | * SDS sheet [https://pdf.joergkueper.de/forex_safety%20data%20sheet%202016.pdf link]
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− | ==Collection Risks==
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− | Research by Greg Smith and Michael Samide report that some rigid, unplasticized PVC construction boards give off a sulfur containing heat stabilizer (2-ethylhexyl thioglycolate [2-EHTG]) that can tarnish silver [1]. However, they also reported finding several specific brands of PVC construction board, namely Komacel (Kommerling) and e-PVC (3A Composites) are safe for use in exhibition casework as they do not contain 2-EHTG.
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− | '''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''
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− | ° Forex Classic [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials AIC Wiki for Oddy tests] Tested in 2013 (British Museum -pass for permanent use)
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| == Physical and Chemical Properties == | | == Physical and Chemical Properties == |
− | Stable in normal conditions. Avoid temperatures > 180 °C.
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− | * Insoluble in: Water, sea water, acids and bases, aliphatic hydrocarbons.
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− | * Soluble in: Aromatic hydrocarbons,ketones, chlorinated hydrocarbons.
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− | * Softening temperature: > 80 °C
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− | * Thermal decomposition: > 180 °C
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− | * Ignition temperature: > 450 °C
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− | * Apparent density: 430 – 700 kg/m3
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− | ==Working Properties==
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− | Simple mechanical processing with standard tools for working with wood and plastic
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− | Three dimensional forming using cold/hot bending and thermoforming.
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− | Sheet can be used for structural applications
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− | Store away from immediate and dangerous sources of ignition.
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− | Danger of electrostatic charges when stored in very dry areas.
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− | == Resources and Citations == | + | * Soluble in water. |
− | *[1] Assessing the Suitability of Unplasticized Poly(Vinyl Chloride) for Museum Showcase Construction, Michael J. Samide and Greg Smith, 2020 [https://www.tandfonline.com/doi/full/10.1080/01971360.2020.1765122 Link] | + | * Composition = K2TiC2O5 - 2H2O |
− | * CCI Technical Bulletin 32 - Products Used in Preventive Conservation [https://www.canada.ca/en/conservation-institute/services/conservation-preservation-publications/technical-bulletins/products-used-preventive-conservation.html Link]
| + | * Loba Chem: [https://www.lobachemie.com/lab-chemical-msds/MSDS-POTASSIUM-TITANIUM-OXALATE-CASNO-14402-67-05461-EN.aspx SDS] |
− | * FOREX®: [https://www.display.3acomposites.com/forex.html website]
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− | * FOREX®: [http://media.alucobond.com/pdf/forex/FOREX_Product_Range_EN.pdf Technical sheet]
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− | [[Category:Materials database]][[Category:MWG]][[Category: Board/Panel, Plastic]] | + | [[Category:Materials database]] |