Sheets & Films

Polycarbonate Resin Panlite® Sheet & Film

Introduction and Features

Polycarbonate resin "Panlite®" sheets and films, which have excellent characteristics such as heat resistance, impact resistance, and high transmittance, are used for automobile parts, electrical and electronic parts, printing nameplates, etc.

Features

Abounding in Line up

Panlite® sheet/film have various lineups from thin films to thick sheets, including improved pencil hardness and hard coating.

Main grades

  PC-1151
PC-2151 *1
PC-710A
PC-813A *2
PC-D101 PC-HA51 PC-JA53
Composition
Pencil hardness
(load 750g)
2B HB/2B 2H/2B 4H/HB 2H/HB
Characteristic General grade
Good workability
  1. *1PC-2151 is 0.3 and thinner
Coating on both side
Scratch resistance
  1. *2PC-813A is One-side coat
High hardness
Good workability
Coating on both sides
Pencil hardness
Coating on PC side
Scratch resistance

Grade Lists

Standard grades

Grade Form Thickness (mm)
0.125 0.18 0.2 0.25 0.3 0.4 0.5 0.7 0.8 1 1.2 1.5 2
PC-2151 Clear Roll                
Sheet                      
PC-1151          
  • *Contact us for thickness more than 2.0mm.

Propeties of standard grades

Property Unit Measurement method Measurement condition typical value
Total light transmittance % ISO 13468-1 0.3mm
(thickness)
90
Refractive index - ASTM D542 - 1.585
Density kg/m3 ISO 1183 - 1,200
Load deflection temperature ISO 75-1
and
ISO 75-2
1.80MPa 129
0.45MPa 142
Continuous heat resistance temperature - - 120
Thermal conductivity w/mK laser flash method - 0.2
Specific heat cal/℃・g(RT) - - 0.3
Tensile modulus MPa ISO 527-1
and
ISO 527-2
1mm/min 2,400
Tensile yield stress MPa 50mm/min 61
Tensile yield distortion % 50mm/min 6
Tensile fracture designatlon distortion % 50mm/min >50
Water absorption rate % ISO 62 after immersion in water at 23℃ for 24 hours 0.2
Flexural modulus MPa ISO 178 2mm/min 2300
Flexural strength MPa 2mm/min 91
Charpy impact strength kJ/m2 ISO 179 Notched 76
Vlcat softening temperature ISO 306 50℃/h 50N 149
Coefficient of linear expansion ×10-4/℃ ISO 11359-2 - 0.7
Specific Inductive capacity - IEC 60250 100Hz 3.1
1MHz 3
Dielectric loss tangent 100Hz 10
1MHz 90
Volume resistivity Ω・m IEC 60093 - >1×1013
Surface resistivity Ω - >1×1015
Withstand voltage MV/m IEC 60243-1 Short time test 30
Tracking resistance - IEC 60112 - 250
Sunshine weathering test total light transmittance of PC-1151 1.0mm
Sunshine weathering test total light transmittance PC-1151 1.0mm

Engineering Service

Secondary Processing

Machining
  • Cutting

    Electric circular power saws can be used, however, air bubbles may arise on the cut surface due to frictional heat when the sheet is thick. To avoid air bubbles, slower cutting speed or cooling process are required. Thinner sheets at 3 mm or less can be cut by shearings, and extremely thin sheets at 1 mm or less can be cut with scribers or scissors. See the following table for the compatibilities between cutting tools and sheet thicknesses.

Tool Scissors Hand cutting Shearing Jigsaw Scriber
Thickness
(mm)
1 or less
2 ×
3 × ×
4 or over

○= Suitable △= Allowable but the surface would be tough ×= Unsuitable

  • Lathing

    Standard tools for steel cutting can be used. Adjust revolution rates depending on required surface conditions and heaing states.

    • NotePut on protectors since fragments might fly during processing.
Forming
  • Forming method

    Panlite® sheet can be used vacuum molding, high pressure molding and press molding.
    Optimum temperatures are between 180 and 190℃, however, air bubbles might be generated when sheets are moistened. In such a case, predrying is required.
    Predrying must be carried out at a temperature between 120 and 125℃ and the time ranges for predrying are shown in the following table.

Sheet thickness Time
1mm 2 hrs or longer
2mm 4 hrs or longer
3mm 7 hrs or longer
4mm 10 hrs or longer
5mm 13 hrs or longer
6mm 15 hrs or longer

Form the sheets as soon as you put them out from the dryer. When Panlite® sheet is left in the air after drying, they will absorb moisture again in about an hour, which may cause air bubbles during forming. Optimum temperatures for forming are between 90 to 110 ℃. Draft angle must be 3% or more.

Painting and printing

Acrylic, vinyl chloride-vinyl acetate copolymer-type, phenolic, and chlorinated rubber-type inks are generally applicable to both painting and printing.

Bonding Panlite® sheet / Adhesive agents suitable for Panlite®
Use inks or solvents specified by their manufacturers for polycarbonate. Also, conduct preliminary tests before use.

Bonding

Panlite® sheet can be bonded by adhesive agents, solvents, supersonic waves, etc.

  • Bonding by adhesive agents or solvents

    As pretreatment, clean the bonding surface by neutral detergents or alcohol then roughen the surface by surface-roughing materials such as sandpapers. The table below shows bonding examples with commonly used adhesive agents and solvents. Most adhesive agents have low critical stress levels; When much strain remains, anneal the sheets before bonding.

Type Adhesive agent Manufactuer Tensile shear strength
(MPa)
Critical stress
23℃×24h
(MPa)
Remarks
Epoxy-type Cemedine 1500 Cemedine 4.4 61.8 over Cure agent : Polyamid
Pot life : 60min(20℃)
Bond E Set M Konishi 3.4 61.8 over Cure agent : Modified Polyamid
Pot life : 60min(20℃)
Bond Quick Set Konishi 2.0 61.8 over Cure agent : Modified Polyamid
Pot life : 4min(20℃)
Urethane-type Bond KU-661/KU-662 Konishi 3.9 21.6 KU-661 : Polyester polyol
KU-662 : polyisocyanate
α-cyanoacrylate-type
  (Instant adhesive)
Aron alpha #201 Toagosei 10.8 6.9 Viscosity : 2~6 (CPS)
Three Bond 1770 Threebond 9.8 6.9 Viscosity : 2~5 (CPS)
Cemedine 3000 Cemedine 8.3 6.9 Viscosity : 2~5 (CPS)
Loctite 495 Japan Loctite 10.8 6.9 Viscosity : 40 (CPS)
Solvent-type Bond VP-2000 konishi 10.3 7.8 Main component : Acrylics,
Solvent : MEK
Solvent Methylene chloride - 10.8 -  

Chemicals Resistance of Panlite®