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Circulum® B-780p

Circulum® B-780p by BEWI is a recyclable, shock absorbing, expandable polystyrene (EPS) grade containing pentane as a blowing agent. It is cost-effective, environment friendly and safe to use. Available in the form of spherical beads with a bulk density of about 0.6g/cm3 in 1.1 ton octabins. It is free from any chlorofluorocarbon (CFC's) or hydro-chloro-fluoro carbon (HCFC's). It is suitable for processing by foaming. Circulum® B-780p is used for the production of shape-moulded products. It meets the food contact regulations in most countries.

Circulum® B-780p Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Pentane Content

5.5 - 6.5 %

Gas Chromatography

Monomer Level

< 0.1 %

Gas Chromatography

Main Bead Size Distribution

0.6 - 1.0 mm

Image Analyser

Foaming Properties

Value & Unit

Test Condition

Test Method

Pre-Foaming Temperature

100 - 110 °C

Conditioning Time

12 - 24 hr

Steam Pressure

< 2 bar

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Circulum® B-780p

Circulum® B-780p Properties

Physical Properties

Circulum® B-780p Processing Guidelines

Foaming Properties