User Guide

16
BONDING
TAPES
PERFORMANCE
LABEL
MATERIALS
COMMERCIAL
GRAPHICS
RELEASE
LINERS AND
PRINTABLE
FILMS
SINGLE COATED
TAPES
RECLOSABLE
FASTENERS
SPECIALTY
PRODUCTS
FLEXOGRAPHIC
MOUNTING
Liner Reference Chart
3M offers paper and film release liners in a number of
different constructions and weights to meet various process
requirements.
1. Paper liners include polycoated kraft (PCK) for moisture
stability to resist wrinkling and curling; and densified
kraft (DK) to reduce the edge burr on metal plates and
for rotary processing. Extended DK liners (XL) are also
available on selected tapes. With the liner wider than the
adhesive, you can more easily grip the liner edge for removal.
2. Film liners add strength in high speed processing and
dispensing, and are available for clean room processing.
They also offer high clarity for graphic inspection.
Paper Liners
43# Densified Kraft (DK) – 2.5 mils
• Silicone treated on one side for use as a second liner
to protect adhesive during selective die-cutting.
• Printable.
55# Densified Kraft (DK) – 3.2 mils
• Caliper-controlled hard liner for consistent base in
rotary printing and die-cutting of labels.
58# Polycoated Kraft (PCK) – 4.2 mils
• 3M standard for performance.
• Moisture stability and economical edge burr during
hard tool die-cutting.
60# Densified Kraft (DK) – 3.5 mils
• Hard dense liner reduces edge burr in hand tool
processing of metal plates.
62# Densified Kraft (DK) – 3.7 mils
• Heavier version of 60#.
78# Extensible Polycoated Kraft (EK) – 6.0 mils
• Extra tough liner for tear resistance.
• Conformable for EMI/RFI shielding applications.
83# Polycoated Kraft (PCK) – 6.2 mils
• Excellent moisture stability for lay-flat
processing.
• Thicker caliper for kiss-cutting and steel rule
die-cutting.
94# Polycoated Kraft (PCK) – 7.0 mils
• Excellent liner for lay-flat processing.
Film Liners
Clear Polyester (PET) – 2.0, 3.0, 4.0 mils
• High strength reduces breakage during
die-cutting and dispensing.
Clear High Density Polyethylene (HDPE) – 3.0 mils
• Silicone treated for easy release.
• Clarity for see-through applications.
Clear Low Density Polyethylene (LDPE) – 4.0 mils
• Designed for embossing or thermal forming
applications.
• One piece removal.
White Low Density Polyethylene (LDPE) – 4.0 mils
• Designed for label gun embossing tapes.
• White for enhanced label appearance.
White Polypropylene (PP) – 3.5 mils
• Excellent moisture stability.
• Die-cutting properties similar to paper.
• Tough for piggy-back adhesive constructions.
High
Tensile Humidity Rotary Kiss Steel
Liner Type Strength Resistance Processing Cutting Rule
Film
Densified Kraft
Polycoated Kraft
Extensible Kraft
Liner Selection Chart