Difference between revisions of "Barrier material"

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|- style="font-weight:bold; background-color:#FCE4D6;"
 
|- style="font-weight:bold; background-color:#FCE4D6;"
 
! Tradenames
 
! Tradenames
−
! Composition layers
+
! Description<br>Composition layers
 
! Thickness (mils)
 
! Thickness (mils)
−
! Water-vapor transmission gm/m2 per 24 hours
+
! Water-vapor transmission <br>gm/m2 per 24 hours
−
! Oxygen transmission cc/m2 per 24 hours
+
! Oxygen transmission<br>cc/m2 per 24 hours
 
! Recorded tests<br>Brand name: number (dates)<br>See note below.
 
! Recorded tests<br>Brand name: number (dates)<br>See note below.
 +
! Data sheet link
 
|-
 
|-
 
! [[Marvelseal]] 360
 
! [[Marvelseal]] 360
−
| [[nylon]]\[[polyethylene]]\[[Aluminum foil]]\[[polyethylene]]\LLDPE
+
| [[nylon]]\[[polyethylene|PE]]\[[Aluminum foil|Foil]]\[[polyethylene|PE]]\[[Low density polyethylene|LLDPE]]
 
| 5.2 Mils
 
| 5.2 Mils
 
| 0.009 (90% RH, 100°F)
 
| 0.009 (90% RH, 100°F)
 
| 0.009 (@ 0 RH, 73°F)
 
| 0.009 (@ 0 RH, 73°F)
 
| * Marvelseal 360: 1 (2018)
 
| * Marvelseal 360: 1 (2018)
 +
 
|-
 
|-
 
! [[Marvelseal]] 470
 
! [[Marvelseal]] 470
−
| [[polypropylene]]\[[polyethylene]]\[[Aluminum foil]]\[[polyethylene]]\LLDPE
+
| [[polypropylene|PP]]\[[polyethylene|PE]]\[[Aluminum foil|Foil]]\[[polyethylene]]\[[Low density polyethylene|LLDPE]]
 
| 5.0 Mils
 
| 5.0 Mils
 
| 0.009 (90% RH, 100°F)
 
| 0.009 (90% RH, 100°F)
 
| 0.009 (0 RH, 73°F)  
 
| 0.009 (0 RH, 73°F)  
 
| * Marvelseal 470: 1 (2019)
 
| * Marvelseal 470: 1 (2019)
 +
 
|-
 
|-
 
! Cadpak N  
 
! Cadpak N  
−
| Biax [[Nylon]]/[[Polyethylene]]/[[Aluminum foil]]/[[Polyethylene]]
+
| Biax [[Nylon]]/[[Polyethylene|PE]]/[[Aluminum foil|Foil]]/[[Polyethylene|PE]]
 
| 4.2 Mils   
 
| 4.2 Mils   
 
| 0.0005 (90% RH, 40°C)
 
| 0.0005 (90% RH, 40°C)
 
| 0.0005
 
| 0.0005
 
| Cad Pak N: 1 (2019)
 
| Cad Pak N: 1 (2019)
 +
 
|-
 
|-
 
! Cadpak 100 (Cepac 100)
 
! Cadpak 100 (Cepac 100)
−
| Biax [[Nylon]]/[[Polyethylene]]/[[Aluminum foil]]/[[Polyethylene]]/Heavy Duty Green Coex
+
| Biax [[Nylon]]/[[Polyethylene|PE]]/[[Aluminum foil|Foil]]/[[Polyethylene|PE]]/Heavy Duty Coex
 
| 7.9 Mils   
 
| 7.9 Mils   
 
| 0.0005 (90% RH, 40°C)
 
| 0.0005 (90% RH, 40°C)
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|-
 
|-
 
! Cadpak 200 (Cepac 200)
 
! Cadpak 200 (Cepac 200)
−
| Biax [[Nylon]]/[[Polyethylene]]/Cross-lam PE/[[Polyethylene]]/[[Aluminum foil]]/Heavy Duty Green Coex
+
| Biax [[Nylon]]/[[Polyethylene|PE]]/Cross-lam PE/[[Polyethylene|PE]]/[[Aluminum foil|Foil]]/Heavy Duty Coex
 
| 10.3 Mils   
 
| 10.3 Mils   
 
| 0.0005 (90% RH, 40°C)
 
| 0.0005 (90% RH, 40°C)
 
| 0.0005
 
| 0.0005
 
| * Cadpak Hd200: 1 (2018)
 
| * Cadpak Hd200: 1 (2018)
 +
 
|-
 
|-
 
! [[Aclar]] UltRx 6000
 
! [[Aclar]] UltRx 6000
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|-
 
|-
 
! Peralux
 
! Peralux
−
| [[Polyvinyl chloride]]\[[Aclar]]
+
| [[Polyvinyl chloride|PVC]]\[[Aclar]]
 
| 6.0 Mils   
 
| 6.0 Mils   
 
| 0.03 (90% RH, 100°F)
 
| 0.03 (90% RH, 100°F)
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|-
 
|-
 
! kp (Pentapharm)
 
! kp (Pentapharm)
−
| [[polyvinyl chloride]] (PVC)\[[Aclar]]\PVdC\PVC
+
| [[polyvinyl chloride|PVC]]\[[Aclar]]\PVdC\PVC
 
| 3.0 Mils   
 
| 3.0 Mils   
 
| 0.35 (90%RH, 38°C)
 
| 0.35 (90%RH, 38°C)
 
| 0.18
 
| 0.18
 
| * n/a
 
| * n/a
 +
 
|-
 
|-
 
! Filmpak 1193
 
! Filmpak 1193
−
| [[Polyester]]\[[polyethylene]]\[[Aclar]]\[[Polyethylene]]
+
| [[Polyester]]\[[polyethylene|PE]]\[[Aclar]]\[[Polyethylene|PE]]
 
| 4.9 Mils   
 
| 4.9 Mils   
 
| 0.03 (90% RH, 100°F)
 
| 0.03 (90% RH, 100°F)
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|-
 
|-
 
! [[Escal|ESCAL]]
 
! [[Escal|ESCAL]]
−
| [[polypropylene]]\Silica deposited [[polyvinyl alcohol]]\ LLDPE
+
| [[polypropylene|PP]]\Silica deposited [[polyvinyl alcohol]]\[[Low density polyethylene|LLDPE]]
 
| 114 microns
 
| 114 microns
 
| 0.01 (25°C 60%RH)
 
| 0.01 (25°C 60%RH)
 
| 0.05 (25°C 60%RH)
 
| 0.05 (25°C 60%RH)
 
| * n/a
 
| * n/a
 +
 
|-
 
|-
 
! EVOH/nylon barrier film
 
! EVOH/nylon barrier film
−
| [[EVOH]], [[nylon]]
+
| [[EVOH]]/[[nylon]]
 
| 3.0 Mils   
 
| 3.0 Mils   
 
|  
 
|  
 
| 2.3 cc/m2 per 24hr
 
| 2.3 cc/m2 per 24hr
 
| * n/a
 
| * n/a
 +
 +
|-
 +
! [[Marvelseal]] 585
 +
| [[Tyvek]]/[Polyethylene|PE]/[[aluminum foil|Foil]]/[[Polyethylene|PE]]
 +
|  8.5
 +
| <0.01
 +
|
 +
| * n/a
 +
| [https://docs.google.com/document/d/14m4ecFwVu1WNybolJ9421e4-Os_loh4Gbnaj62Od6ek/edit?tab=t.0 Data sheet]
 
|-
 
|-
 
|}
 
|}

Revision as of 10:50, 17 February 2025

Description

A material, such as plastic, paper or metal, that is impermeable to gas or liquid. Modern barrier materials are usually made from lightweight transparent plastic sheets whose goal is to reach the barrier properties of a metal or glass. Metal sheets, such as Aluminum foil have good barrier properties. They are often laminated with Polyethylene and/or Nylon film to provide tear and corrosion resistance. Some plastics also work well as vapor barriers (Polyvinylidene chloride, Polyester, rigid Polyvinyl chloride, Polychlorotrifluoroethylene, Polyvinyl fluoride) while others are best for moisture (Polyvinyl chloride, Regenerated cellulose, Polyethylene, Polypropylene, Polymethyl methacrylate (Hatchfield 2002). Multiple materials are laminated for optimized barrier properties. For anoxia treatments, films with low oxygen permeability are best.

Barrier Films Comparison

Single layer barrier films, such as used for short term applications include cling wrap (polyvinylidene) shrink wrap (polyethylene) and nylon (polyamide) films. Double-layer films made by thermoforming one material to another provide a better balance of impermeability to both moisture and oxygen, thus providing protection for longer durations. Multi-layer films provide the best protection and usually include combinations of the following: Ethylene-Vinyl alcohol (EVOH), aluminum foil, metallized polyester, nylon, and polyvinylidene chloride. Polyethylene and/or polypropylene are often used to adhere layers together. Some commercial brands form barrier films include:

Tradenames Description
Composition layers 		Thickness (mils) Water-vapor transmission
gm/m2 per 24 hours 		Oxygen transmission
cc/m2 per 24 hours 		Recorded tests
Brand name: number (dates)
See note below. 		Data sheet link
Marvelseal 360 Nylon\PE\Foil\PE\LLDPE 5.2 Mils 0.009 (90% RH, 100°F) 0.009 (@ 0 RH, 73°F) * Marvelseal 360: 1 (2018)
Marvelseal 470 PP\PE\Foil\Polyethylene\LLDPE 5.0 Mils 0.009 (90% RH, 100°F) 0.009 (0 RH, 73°F) * Marvelseal 470: 1 (2019)
Cadpak N Biax Nylon/PE/Foil/PE 4.2 Mils 0.0005 (90% RH, 40°C) 0.0005 Cad Pak N: 1 (2019)
Cadpak 100 (Cepac 100) Biax Nylon/PE/Foil/PE/Heavy Duty Coex 7.9 Mils 0.0005 (90% RH, 40°C) 0.0005 * Cadpak Hd100: 1 (2018)
* Cepac Hd100: 3 (2015)
Cadpak 200 (Cepac 200) Biax Nylon/PE/Cross-lam PE/PE/Foil/Heavy Duty Coex 10.3 Mils 0.0005 (90% RH, 40°C) 0.0005 * Cadpak Hd200: 1 (2018)
Aclar UltRx 6000 Polychlorotrifluoroethylene 6.0 Mils 0.0047 27.9 * n/a
Peralux PVC\Aclar 6.0 Mils 0.03 (90% RH, 100°F) 14.8 * n/a
kp (Pentapharm) PVC\Aclar\PVdC\PVC 3.0 Mils 0.35 (90%RH, 38°C) 0.18 * n/a
Filmpak 1193 Polyester\PE\Aclar\PE 4.9 Mils 0.03 (90% RH, 100°F) 0.05 * n/a
ESCAL PP\Silica deposited Polyvinyl alcohol\LLDPE 114 microns 0.01 (25°C 60%RH) 0.05 (25°C 60%RH) * n/a
EVOH/nylon barrier film EVOH/Nylon 3.0 Mils 2.3 cc/m2 per 24hr * n/a
Marvelseal 585 Tyvek/[Polyethylene|PE]/Foil/PE 8.5 <0.01 * n/a Data sheet

Synonyms and Related Terms

barrier plastic; barrier film; barrier board; vapor barrier; vapour barrier; air barrier; air infiltration barrier; Marvelseal® 360; Marvelseal® 470; Aclar® [AlliedSignal]; Filmpak 1193; Film O-Rap [Bell Fibre]; ESCAL; EVOH/nylon; Sperrschichtmaterial (Deut.); matériau barrière (Fr.); barreira (Port.)

Resources and Citations

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