S 28 F
S 28 F is a homopolymer for the production of biaxially oriented polypropylene ﬁlms.
The product is particularly suitable for metallization, both as monolayer ﬁlm and in coextruded structures.
S 28 F has been designed to provide a very stable extrusion on stenter lines and to give excellent thickness control, increased drawability and readiness to a two way orientation. S 28 F contains a reinforced processing stabilisation but does not contain any slip or antiblocking agents.
The product features low water carry-over properties and is therefore also suitable for tubular BOPP.
BOPP ﬁlms produced with S 28 F feature good mechanical properties, high impact strength and puncture resistance, even at low temperatures.
The ﬁlms form an excellent barrier against moisture, odours, oils, fats and oxidation and feature good optical properties. ‘Monolayer or coextruded ﬁlms made of S 28 F with a thickness ranging from 20 to 40 um are used for the packaging of foodstuffs, cosmetics and videocassettes. Metallized BOPP ﬁlms made with S 28 F are also suitable for lamination to other ﬂexible ﬁlms.
TYPICAL VALUE (a)
|Melt ﬂow rate (230 °C, 2.16 kg)
|dg / min
Tensile strength yield
Elongation at yield
Izod Impact Strength (notched) at 23°C
Hardness Shore D
ISO R 527
ISO R 527
|Vicat softening point (9.8 N)
H.D.T. (0.46 Mpa)
Accelerated oven ageing in air
(forced circulation) at 150 °C
S 28 F is suitable for food contact.
a) Values shown are averages and are not to be considered as product speciﬁcation These values may shift slightly as additional data are accumlsted.
b) ISO test methods are the lates under the societys current procedures. All specimens are prepared by injection moulding.