CALIBRE™ 603-6 is a tinted branched polycarbonate resin specially designed for multi-wall sheet extrusion. CALIBRE 603-6 offers a high melt strength for effective calibration of a wide range of multi-wall sheet structures from low to high complexity. CALIBRE 603-6 offers a wider processing window than CALIBRE 503-5 and is likewise specially designed to give excellent sheet surface quality at high line speeds with a reduced tendency to display chatter marks. CALIBRE 603-6 is UV stabilized but sheets for outdoor applications require a protective UV-absorbing cap layer. It is recommended to coextrude a 50 micron thick cap layer from CALIBRE 320UV.

Govt. and Industry Standards:

• Underwriters Laboratory, Inc. (UL)

Main Characteristics:

• Wide processing window

• High surface quality

• Minimizes chatter marks

Applications:

• Low to high complexity multi-wall sheets