Difference between revisions of "Volara"

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[[File:Volara1.jpg|thumb|White Volara]]
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[[File:Volara1.jpg|thumb|White Volara <br>Credit: PACCIN]]
[[File:grey volara.jpg|thumb|Grey Volara]]
 
  
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== Description ==
  
== Description ==
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[Sekisui Voltek] A brand name for a closed-celled, irradiation cross-linked flexible [[polyethylene|polyethylene]] foam manufactured by [https://www.sekisuivoltek.com/products/volara-polyolefin-foams/ Sekisui Voltek].  Volara has a continuous, smooth surface that is resistant to water absorption, vapor transmission, thermal transmission and chemical reactions.  It is available in continuous rolls or laminated sheets that are used to line drawers and boxes. Volara foams have a soft texture with  chemical stability, consistent thickness/texture/density, high tensile strength, low water absorption and vapor transmission, good workability, and aesthetic appeal.  Volara is primarily used as carpet padding, gaskets and insulation for vehicles and machinery.
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== Synonyms and Related Terms ==
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Volara Foam; Volara type A; Voalara-A; XLPE Foam; X-linked PE Foam; Alveolit (EU); Softion (Japan, Australia); minicel
  
A brand name for a closed cell plastic foam made from [[polyethylene|polyethylene]].  Volara has a smooth surface that is resistant to water absorption and chemical reactions.  It is used to line drawers and boxes. Volara is the brand name of a polyolefin-based polyethylene foam from Sekisui Voltec LLC. It is irradiation crosslinked, producing a closed-cell foam with virtually microscopic cells. It has an extremely soft texture throughout, including that of cut surfaces where the tiny cells are presumably broken. Its other desirable qualities include chemical stability, consistent thickness/texture/density, high tensile strength, low water absorption and vapor transmission, workability, and aesthetic appeal, all serving to make it a highly versatile material.
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[[File:grey volara.jpg|thumb|Gray Volara <br>Credit Keith Lawrence]]
  
The surface tension of 2 pcf Volara when pressed with a finger is not unlike that of larger-celled foams with lower densities, such as 0.9 pcf polyethylene. It is very easily cut with a knife - but the blade must be quite sharp to avoid thin bits of "flashing" along the exit edges of the cut. A single slice with the blade will produce a smoother cut than a sawing motion, which can produce a somewhat shredded or faceted appearance. The natural color is a creamy, antique white, or ivory. One or both faces of 1/8" Volara in particular can sometimes have a subtle sheen which will wrinkle softly on the inside of a tight curve, and also display a random network of faint lines, increasing its passing resemblance to human skin. Being crosslinked, Volara is not recyclable. In addition to specialized packaging, Volara is primarily used as carpet padding, gaskets and insulation for vehicles and machinery.
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== Applications ==
 +
* Line boxes, display cases and shelves
 +
* Securing artifacts
 +
* Provide buffer between hard surfaces
 +
* Shim gaps for better fit
 +
* Vibation dampening gasket
  
== Synonyms and Related Terms ==
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== Personal Risks ==
Volara Foam; Volara type A; Voalara-A; XLPE Foam; X-linked PE Foam; Alveolit (EU); Softion (Japan, Australia)
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Volara is non-toxic and made without any CFC, HCFC, or hydrocarbon blowing agents.
  
 
[[File:1.20.05 10-Removing volara.jpg|thumb|Removing Volara]]
 
[[File:1.20.05 10-Removing volara.jpg|thumb|Removing Volara]]
  
== Properties ==
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== Collection Risks ==  
Volara is perhaps most commonly used as a surface material added to thicker foam cushions. Its silky/rubbery texture, pliability and softness at 2 pcf makes it a useful primary contact material for many unwrapped objects, whether the cushion is a flat surface or a contoured shape. It is also a handy material for shimming inexact foam contours for a better fit. Volara can be used alone when rigid support, such as wood or foam-board bracing, is desired close to the object. Then the main shock-absorption material can surround the exterior of the rigid securing structure. Likewise, Volara can sometimes be used as a vibration-dampening gasket between two hard surfaces, such as a cabinet and its hinged door, or a large object and the structural load spreader beneath it. Finally, Volara is often used as an effective liner for storage shelving and drawers. (Note: It has been known to compress and even stick slightly to the bottoms of glass objects left in place over a long period of time.)  
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Volara is easily soiled with dust and dirt, an once smudged is difficult to clean (PACCIN)
  
Volara bonds well with itself and with non-crosslinked PE foams, like Ethafoam and PolyPlank, by heat-welding. With practice, large flat surfaces can be heat-welded without overheating the larger-cell PE foam, which can melt under the heat gun and produce dips in the plane. The thinner forms of Volara are pliable enough to heat-weld onto convoluted surfaces, including custom cavities carved into other PE foams. Volara bonds well with hot glue, but it takes care to ensure that beads of glue do not show through the thin material. Volara also bonds very well with 0.003" double-sided PVC film tape. This tape is useful for attaching Volara to hard, flat materials like foam boards or MDO, where beads of hot glue are more likely to partially dry before lamination and show ridges.
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'''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''
 
 
On the downside, Volara is easily soiled with dust and dirt, and once smudged it is pretty much impossible to clean. When removing the material from a shop to use on site, it is recommended to wrap it in poly or transport it in a plastic bag. Volara claims excellent thermal insulation, though it is not typically used in art handling with a thickness and coverage comparable to polyurethane or non-crosslinked polyethylene insulates.
 
== Handling and Workability ==
 
Volara claims excellent thermal insulation, though it is not typically used in art handling with a thickness and coverage comparable to polyurethane or non-crosslinked polyethylene insulates. Volara is chemically stable, and widely considered an archival material suitable for preventative conservation. It is appropriate for use in long-term storage containers, but care must still be taken to ensure that nothing touches any object surfaces that may become unstable in the storage environment. Volara will not prevent damage to an inherently unstable object in an unregulated environment, should the object's glaze or other surface treatment become re-activated in excessive heat or moisture.
 
  
Safety
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* Voltek [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0007 Volara] tested in 2016
Volara is non-toxic, and it contains no CFC, HCFC, or hydrocarbon blowing agent
 
== Forms and Sizes ==
 
In the art handling field Volara is most commonly stocked in one or two forms; 1/4" sheeting in a 60" x 300' roll, and 1/8" sheeting in a 60" x 600' roll. The lightest density available - 2 pcf - is the most useful for securing art objects, whether as a smooth laminate on 2.2 pcf PE foams, or as a buffer between harder surfaces. The natural color is white (ivory).
 
  
Other specs are available from the manufacturer however. The density range of the standard formulation is 2 pcf - 20 pcf. Thickness for rolled sheet can be 0.01" - 0.42", and thickness for laminated forms can be 0.5" to 2". Width of rolls can be up to 88". It is also available in 40 colors.
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* black [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0006 Volara] tested in 2016
  
The standard formulation of Volara used in art handling is called Type A. Other formulations created for special purposes include:
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* black [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0005 Volara] tested in 2013
AF = with fire-retardent properties
 
AS = with deep-draw vacuum forming capabilities
 
EO = with increased flexibility/resiliency/adhesive anchorage
 
G = with further increase in EO qualities
 
LM = with superior heat stability
 
M = with compression-molding capabilities and increased stiffness
 
TS = for industrial tapes and gaskets
 
RSH = for low pressure molding applications.
 
Note that only A, AF, AS, and M are made from polyethylene. The other specialized Volaras are made from alternate polymers.
 
== Applications for Storage Exhibit and transport ==
 
  
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* [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0004 Volara] tested in 2013
  
== Additional Information ==
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* 10 year old [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0003 Volara] tested in 2013
  
'''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''
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* achesive backed [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0002 Volara] tested in 2013
  
° Voltek [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0007 Volara] tested in 2016
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* [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0001 Volara] tested in 2008
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== Environmental Risks ==
 +
== Physical and Chemical Properties ==
 +
== Working Properties ==
 +
Volara has a silky/rubbery texture, pliability and softness at 2 pcf that makes it a useful primary contact material for many unwrapped objectsregardless of whether the surface is flat or curved. Volara can be used alone when rigid support, is desired close to the object, with the main shock-absorption material surrounding the exterior of the rigid securing structure. Note: It has been known to compress and even stick slightly to the bottoms of glass objects left in place over a long period of time.(PACCIN)
  
° black [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0006 Volara] tested in 2016
+
Volara bonds well with itself and with non-crosslinked PE foams, like Ethafoam and PolyPlank, by heat-welding. With practice, large flat surfaces can be heat-welded without overheating the larger-cell PE foam, which can melt under the heat gun and produce dips in the plane. The thinner forms of Volara are pliable enough to heat-weld onto convoluted surfaces, including custom cavities carved into other PE foams. Volara bonds well with hot glue, but it takes care to ensure that beads of glue do not show through the thin material. Volara also bonds very well with 0.003" double-sided PVC film tape. This tape is useful for attaching Volara to hard, flat materials like foam boards or MDO, where beads of hot glue are more likely to partially dry before lamination and show ridges. Volara is easily cut with a knife - but the blade must be quite sharp to avoid thin bits of "flashing" along the exit edges of the cut. A single slice with the blade will produce a smoother cut than a sawing motion, which can produce a somewhat shredded or faceted appearance. (PACCIN)
  
° black [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0005 Volara] tested in 2013
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== Forms/Sizes ==
 +
Typically sold in rolls of 60" width: 1/4" sheeting = 300' length; 1/8" sheeting = 600' length, but thicknesses can range from .01" - 0.42" and width of rolls can be up to 88".
  
° [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0004 Volara] tested in 2013
+
The natural color is white (ivory), but it is also available in 40 colors, including black and grey.
  
° 10 year old [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0003 Volara] tested in 2013
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Formulations created for special purposes include:  
 +
* A = The standard formulation used in art handling
 +
* AF = with fire-retardent properties
 +
* AS = with deep-draw vacuum forming capabilities
 +
* EO = with increased flexibility/resiliency/adhesive anchorage
 +
* G = with further increase in EO qualities
 +
* LM = with superior heat stability
 +
* M = with compression-molding capabilities and increased stiffness
 +
* TS = for industrial tapes and gaskets
 +
* RSH = for low pressure molding applications.  
 +
* Note that only A, AF, AS, and M are made from polyethylene. The other specialized Volaras are made from alternate polymers.
  
° achesive backed [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0002 Volara] tested in 2013
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== Resources and Citations ==
  
° [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Case_Construction_Materials#Volara0001 Volara] tested in 2008
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* Sekisui Voltek: [[https://www.sekisuivoltek.com/products/volara-polyolefin-foams/ Website]]
[[[Slider gallery|aaiPOLEFIN_FOAM.jpg~FTIR]]]
 
  
== Sources Checked for Data in Record ==
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* Rachael Perkins Arenstein, Lisa Goldberg, and Eugenie Milroy, ‘Support and Rehousing for Collection Storage’ In ‘Preventive Conservation: Collection Storage’ Lisa Elkin and Christopher A. Norris (eds.), Society for the Preservation of Natural History Collections, New York. 2019.
  
 
* Preparation, Art Handling, Collections Care Information Network [http://www.paccin.org/content.php?62-Materials (PACCIN)]
 
* Preparation, Art Handling, Collections Care Information Network [http://www.paccin.org/content.php?62-Materials (PACCIN)]
 +
 +
* National Park System, Conserv O Gram, Number 8/2, 'Safe Plastic & Fabrics for Display & Storage': [https://www.nps.gov/museum/publications/conserveogram/18-02.pdf Link]
  
 
* Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002
 
* Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002
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[[Category:Materials database]] [[Category:PACCIN]] [[Category:MWG]]
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[[Category:Materials database]] [[Category:MWG]] [[Category:PACCIN]]

Latest revision as of 09:28, 21 July 2020

White Volara
Credit: PACCIN

Description

[Sekisui Voltek] A brand name for a closed-celled, irradiation cross-linked flexible Polyethylene foam manufactured by Sekisui Voltek.  Volara has a continuous, smooth surface that is resistant to water absorption, vapor transmission, thermal transmission and chemical reactions.  It is available in continuous rolls or laminated sheets that are used to line drawers and boxes. Volara foams have a soft texture with chemical stability, consistent thickness/texture/density, high tensile strength, low water absorption and vapor transmission, good workability, and aesthetic appeal. Volara is primarily used as carpet padding, gaskets and insulation for vehicles and machinery.

Synonyms and Related Terms

Volara Foam; Volara type A; Voalara-A; XLPE Foam; X-linked PE Foam; Alveolit (EU); Softion (Japan, Australia); minicel

Gray Volara
Credit Keith Lawrence

Applications

  • Line boxes, display cases and shelves
  • Securing artifacts
  • Provide buffer between hard surfaces
  • Shim gaps for better fit
  • Vibation dampening gasket

Personal Risks

Volara is non-toxic and made without any CFC, HCFC, or hydrocarbon blowing agents.

Removing Volara

Collection Risks

Volara is easily soiled with dust and dirt, an once smudged is difficult to clean (PACCIN)

Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below

  • Voltek Volara tested in 2016
  • 10 year old Volara tested in 2013
  • achesive backed Volara tested in 2013

Environmental Risks

Physical and Chemical Properties

Working Properties

Volara has a silky/rubbery texture, pliability and softness at 2 pcf that makes it a useful primary contact material for many unwrapped objectsregardless of whether the surface is flat or curved. Volara can be used alone when rigid support, is desired close to the object, with the main shock-absorption material surrounding the exterior of the rigid securing structure. Note: It has been known to compress and even stick slightly to the bottoms of glass objects left in place over a long period of time.(PACCIN)

Volara bonds well with itself and with non-crosslinked PE foams, like Ethafoam and PolyPlank, by heat-welding. With practice, large flat surfaces can be heat-welded without overheating the larger-cell PE foam, which can melt under the heat gun and produce dips in the plane. The thinner forms of Volara are pliable enough to heat-weld onto convoluted surfaces, including custom cavities carved into other PE foams. Volara bonds well with hot glue, but it takes care to ensure that beads of glue do not show through the thin material. Volara also bonds very well with 0.003" double-sided PVC film tape. This tape is useful for attaching Volara to hard, flat materials like foam boards or MDO, where beads of hot glue are more likely to partially dry before lamination and show ridges. Volara is easily cut with a knife - but the blade must be quite sharp to avoid thin bits of "flashing" along the exit edges of the cut. A single slice with the blade will produce a smoother cut than a sawing motion, which can produce a somewhat shredded or faceted appearance. (PACCIN)

Forms/Sizes

Typically sold in rolls of 60" width: 1/4" sheeting = 300' length; 1/8" sheeting = 600' length, but thicknesses can range from .01" - 0.42" and width of rolls can be up to 88".

The natural color is white (ivory), but it is also available in 40 colors, including black and grey.

Formulations created for special purposes include:

  • A = The standard formulation used in art handling
  • AF = with fire-retardent properties
  • AS = with deep-draw vacuum forming capabilities
  • EO = with increased flexibility/resiliency/adhesive anchorage
  • G = with further increase in EO qualities
  • LM = with superior heat stability
  • M = with compression-molding capabilities and increased stiffness
  • TS = for industrial tapes and gaskets
  • RSH = for low pressure molding applications.
  • Note that only A, AF, AS, and M are made from polyethylene. The other specialized Volaras are made from alternate polymers.

Resources and Citations

  • Rachael Perkins Arenstein, Lisa Goldberg, and Eugenie Milroy, ‘Support and Rehousing for Collection Storage’ In ‘Preventive Conservation: Collection Storage’ Lisa Elkin and Christopher A. Norris (eds.), Society for the Preservation of Natural History Collections, New York. 2019.
  • Preparation, Art Handling, Collections Care Information Network (PACCIN)
  • National Park System, Conserv O Gram, Number 8/2, 'Safe Plastic & Fabrics for Display & Storage': Link
  • Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
  • Marie Svoboda, Conservation Survey Index, unpublished, 1997
  • Gordon Hanlon, contributed information, 1998
  • Conservation Support Systems, Catalog, 1997