Difference between revisions of "Parafilm M"

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== Description ==
 
== Description ==
  
[American Can Co.] A registered trademark for a stretchable plastic film. Parafilm M is composed primarily of [[polyolefin|polyolefins]] and [[paraffin|wax paraffin wax]] without any added plasticizers. It is a self-sealing, moldable, film that is permeable to [[oxygen|oxygen]] and [[carbon|dioxide carbon dioxide]]. Parafilm M is used as a liquid and moisture barrier film for short term storage. It has also been used as a temporary supporting strip for ivory (Weisser 1978).
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[American Can Co.] A registered trademark for a stretchable plastic film. Parafil®m M is composed primarily of [[polyolefin|polyolefins]] and [[paraffin|wax paraffin wax]] without any added plasticizers. It is a self-sealing, moldable, film that is permeable to [[oxygen|oxygen]] and [[carbon|dioxide carbon dioxide]]. Parafilm® M is used as a liquid and moisture barrier film for short term storage. It has also been used as a temporary supporting strip for ivory (Weisser 1978).
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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Parafilm M (sp)
 
Parafilm M (sp)
  
== Other Properties ==
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== Applications ==
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== Personal Risk ==
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== Collection Risks ==
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== Physical and Chemical Properties ==
  
 
Slightly soluble in carbon tetrachloride.  Insoluble in ethanol, water. Unaffected by acids, alkalis for up to 48 hours.   
 
Slightly soluble in carbon tetrachloride.  Insoluble in ethanol, water. Unaffected by acids, alkalis for up to 48 hours.   
  
For a 1 mil film: Oxygen transmission = 150 ml/m2d; Water vapor transmission = 3-4 g/m2d
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For a 1 mil film:  
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*Oxygen transmission = 150 ml/m2d
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*Water vapor transmission = 3-4 g/m2d
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*Melting Point=60 C
  
{| class="wikitable"
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Sigma: [[https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma/Product_Information_Sheet/1/p7543pis.pdf| Technical Data Sheet]]
|-
 
! scope="row"| Melting Point
 
| 60
 
|}
 
  
 
== Additional Information ==
 
== Additional Information ==

Latest revision as of 13:21, 18 May 2020

Parafilm 'M'

Description

[American Can Co.] A registered trademark for a stretchable plastic film. Parafil®m M is composed primarily of polyolefins and wax paraffin wax without any added plasticizers. It is a self-sealing, moldable, film that is permeable to Oxygen and dioxide carbon dioxide. Parafilm® M is used as a liquid and moisture barrier film for short term storage. It has also been used as a temporary supporting strip for ivory (Weisser 1978).

Synonyms and Related Terms

Parafilm M (sp)

Applications

Personal Risk

Collection Risks

Physical and Chemical Properties

Slightly soluble in carbon tetrachloride. Insoluble in ethanol, water. Unaffected by acids, alkalis for up to 48 hours.

For a 1 mil film:

  • Oxygen transmission = 150 ml/m2d
  • Water vapor transmission = 3-4 g/m2d
  • Melting Point=60 C

Sigma: [Technical Data Sheet]

Additional Information

T. Drayman Weisser, "A Method for Reinforcing Fragile Ivory" JAIC 17(2): 44-47, 1978: Link

Sources Checked for Data in Record

  • Website address 1 Comment: www.probes.com/probes/legal/html
  • Teri Hensick, contributed information, 1998