Difference between revisions of "Sintra"
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[3A Composites USA] A registered trademark for a lightweight rigid, expanded [[polyvinyl chloride]] board. Sintra® was introduced to North America in 1980. It has been used for the construction of signs and exhibits, for screen painting, and as a substrate for mounting photographs. | [3A Composites USA] A registered trademark for a lightweight rigid, expanded [[polyvinyl chloride]] board. Sintra® was introduced to North America in 1980. It has been used for the construction of signs and exhibits, for screen painting, and as a substrate for mounting photographs. | ||
| − | + | Four grades of Sintra® are available: | |
| − | + | * Sintra: standard product; Bright white, lightweight, low gloss, printable on both sides | |
| − | Sintra | + | * Sintra Eclipse: two layer: Bright white face over black; both with same characteristics as standard Sintra |
| − | + | * Sintra Vers (formerly called ePVC): lighter weight, general purpose, low-gloss finish | |
| − | + | * Sintra Construct: Designed for machinability with extra rigidity and screw retention | |
== Applications == | == Applications == | ||
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==Collection Risks == | ==Collection Risks == | ||
| − | 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. | + | 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 (now renamed as Sintra Vers, 3A Composites) are safe for use in exhibition casework as they do not contain 2-EHTG. |
'''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''<br> | '''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''<br> | ||
Revision as of 10:34, 9 December 2020
Description
[3A Composites USA] A registered trademark for a lightweight rigid, expanded Polyvinyl chloride board. Sintra® was introduced to North America in 1980. It has been used for the construction of signs and exhibits, for screen painting, and as a substrate for mounting photographs.
Four grades of Sintra® are available:
- Sintra: standard product; Bright white, lightweight, low gloss, printable on both sides
- Sintra Eclipse: two layer: Bright white face over black; both with same characteristics as standard Sintra
- Sintra Vers (formerly called ePVC): lighter weight, general purpose, low-gloss finish
- Sintra Construct: Designed for machinability with extra rigidity and screw retention
Applications
Personal Risks
Sintra: [Safety Data Sheet]
Collection Risks
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 (now renamed as Sintra Vers, 3A Composites) are safe for use in exhibition casework as they do not contain 2-EHTG.
Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below
See also Polyvinyl chloride for additional test result information
° 3A Sintra Tested in 2016
° 3A Composites or Vycom Sintra or Celtec tested in 2014
° 3A Composites Sintra tested in 2012
° White Sintra tested in 2012
° 3/4" Sintra tested in 2012
° Laird Plastics 6mm "Sintra" tested in 2011
° Laird Plastics PVC tested in 2009
Resources and Citations
- [1] Assessing the Suitability of Unplasticized Poly(Vinyl Chloride) for Museum Showcase Construction, Michael J. Samide and Greg Smith, 2020 Link
- Sintra Material website
- CCI Technical Bulletin 32 - Products Used in Preventive Conservation Link