Circuit Films

CF-T1/PD NEW QUALITY

Heat stabilized polyester film. Ink receptive coating for conductive and insulating pastes on both sides.

Material is available with thicknesses of 0.13 mm, 0.18 mm or 0.25 mm. Available in sheets and rolls. Sheets available in standard packing unit or on demand. All sheets are equipped with interleaving paper as standard.

Cut sheets

Art. Number	Nominal thickness (mm)	Packing quantity
4863x.130.xxxxx	0.13	100
4863x.180.xxxxx	0.18	100
4863x.250.xxxxx	0.25	100

Rolls

Art. Number	Length (m)	Nominal thickness (mm)
4863x.130.xxxxx	100	0.13
4863x.180.xxxxx	100	0.18
4863x.250.xxxxx	100	0.25

Technical data

Characteristic

Ink receptive coating
Suitable for silver and graphite pastes
Suitable for textured laquers

Thermostabilized PET-Film

Properties

Property	Test Method	Value
Optical
Haze	ASTM D1003-77	< 1%
Total luminous transmission	ASTM D1003-77	> 90%
Mechanical
Embossing	Folex method	possible
Tensile strength at break	ASTM D 882	170 N/mm²
Switch life	Folex method according to DIN 42115	> 5 Mio. flexes
Chemical
Chemical stability	Folex method	partly resistant
Electrical
Dielectric strength¹	ASTM D149-81	120 kV/mm (125 µm)
Dielectric constant ¹	ASTM D150, 1 kHz	3,25 (23my)
Surface resistivity	ASTM D257-83	10¹³ Ohm/sq.
Thermal
Shrinkage TD	130°C 30 min Folex method	< 0,3%
Shrinkage MD	130°C 30 min Folex method	< 0,2%
Maximum processing temperature		120°C
Melting temperature¹	ASTM E794-85	255°C
Surface
Roughness Ra	EN ISO 4287, ASME B46.1	0,2 - 0,4 µm
Scratch resistance	Folex method	partly resistant
Surface tension front side	DIN 53364, ASTM D2578	38 - 41 mN/m
Surface tension reverse side	DIN 53364, ASTM D2578	38 - 41 mN/m

¹ Data derived from base film Polyester manufacturer's literature with base film

Specifications

Nominal thickness (mil)	5.2
Nominal thickness (mm)	0.13
Base Material	Polyester
Packing quantity	100

Product Applications

Suitable for Membrane Switches, sign production as well as for production of labels

Storage

Once packaging is opened, store at a room temperature of 15 - 25°C and at a humidity of 30 - 60 %
Shelf life 1 year after delivery (under recommended storage conditions)

Downloads (PDF)

Catalogues

FILMS FOR INPUT SYSTEMS (EN) (PDF)
FILMS FOR INPUT SYSTEMS (DE) (PDF)
FILMS FOR INPUT SYSTEMS (IT) (PDF)