[Volek] A registered trademark for a cross-linked Polyethylene foam manufactured by Sekisui Voltek, LLC. Like polyethylene foams, cross-linked polyethylene foams are durable and chemically stable, but are typically finer celled.  Minicel is a closed cell foam. It is an extremely fine-celled bun foam that has a smooth, consistent surface. Minicel has a tough and firm, yet elastic feel.  Minicel has good thermal insulation, strength and shock absorption. It is impervious to mildew, mold, rot, and bacteria, as well as chemical resistance. Standard colors are natural-white and black. Minicel is very buoyant and is commonly used in water recreation devices such as kayaks. 
Synonyms and Related Terms
Polyethylene foam; crosslinked polyethylene foam; XLPE foam; X-linked PE foam; Volara
- Art handling
- Transport: shock absorption and cushioning
Sekisui Voltek: SDS
All Minicel products are non-toxic and contain no CFC, HCFC, or hydrocarbon blowing agents. 
Stable. Minnesota Historical Society says, “Can be used” (MWG 2020).
Physical and Chemical Properties
|Form||Solid, in various forms|
|Melting Point||PE foam: 90-115°C|
|Solubility in/miscibility with water||Insoluble|
Forms and Sizes
Produced in molded bun form.
Density range: 2, 3, 3.8, 6, 8, 12 and 22 pcf.
- 2, 3, 3.8 pcf: 4 x 48 x 72”
- 6 pcf: 3 x 48 x 72”
- 8 pcf: 1.78 x 32 x 67”
- 12pcf: 1.50 x 28 x 59”
- 22 pcf: 1.2 x 24 x 49”
Minicel L200 and LF200 Foam sheets :
- 72 x 48” sheets (sold in 2/3, ½, and 1/3 sheets)
- ¼, 3.8, ½, ¾, 1, 1.5, 2, 3, and 4” thick
Resources and Citations
- Kaela Nurmi, contributed information, MWG group, 2020.