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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:
| + | Any black mixture used for darkening stoves or shoes. Blacking usually contained a carbon black pigment such as [[lampblack]]. |
| − | * [[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)
| + | blackening; Zebrite |
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| − | For comparison with alternates, see [[PVC Boards]].
| + | ==Resources and Citations== |
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| − | ==Applications==
| + | * Tom Rowland, Noel Riley, ''A-Z Guide to Cleaning, Conserving and Repairing Antiques'', Constable and Co., Ltd., London, 1981 |
| − | * digital printing; screen printing; signage; lettering | |
| − | * 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==
| + | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 |
| − | * 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.
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| − | * Hazardous thermal decomposition products: Hydrochloric acid (HCl), Carbon dioxide (CO2), Carbon monoxide (CO)
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| − | * SDS sheet [https://pdf.joergkueper.de/forex_safety%20data%20sheet%202016.pdf link]
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| − | ==Collection Risks==
| + | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 |
| − | 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 ==
| + | [[Category:Materials database]] |
| − | 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 ==
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| − | *[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]
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| − | * 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]
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| − | * 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]] | |