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| ESCORENE ULTRA FL 00714 |
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| Ethylene vinyl acetate copolymer |
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FL 00714 is a high ethylene vinyl acetate (EVA) extrusion coating grade with excellent heat sealing characteristics and is therefore mostly used as heat seal layer, i.e. :
-high speed heat sealing
-low temperature heat sealing
-good seal through contamination
However, the high vinyl acetate content reduces the use of FL 00714 to mostly non-food applications or food applications with no direct food contact. If food applications are wanted, it is recommended to use FL 00909.
FL 00714 is often used as a transparent surface protection layer taking full advantage of its excellent optical properties.
FL 00714 is stabilised with antioxidant.
Typical applications of FL 00714:
-General extrusion coating
-Co-extrusion coating
-Extrusion lamination
-All industrial coating applications which justify the use of an EVA : coating on kraft paper, aluminium foil, flexible films (PET, cellulose films,...).
-Compounding
-Hot melt adhesive
-Injection moulding
-Recommended melt temperature : 240'C
-Maximum allowable temperature of the polymer : 250'C
-Barrel temperature profile : 180/200/220/240'C
-Minimum recommended air gap : 120 mm
-Recommended chill roll temperature : as low as possible (< 10 ЎЖC)
Due to the nature of EVA copolymers, a melt temperature of 250'C should not be exceeded when using FL 00714.
Before starting with FL 00714, reduce the homopolymer LDPE temperature to a maximum melt temperature of 260'C.
Prior to shut down of the extruder, all FL 00714 must be purged completely with LDPE homopolymer, with the deckles fully open. |
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Melt index g/10 min: 7.5
Vinyl acetate wt %: 14
Density g/cm: 0.935
Vicat softening point 'C: 62
Melting point 'C: 88
Neck-in (constant output) -50 m/min, 245'C cm: 8.8 -150 m/min, 245'C cm: 6.6
Minimum coating weight (constant output, 245 ЎЖC set) g/m: 15 |
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