Polypropylene (PP) Corrugated Sheet – is an extruded twin wall hollow fluted plastic sheets consisting of two flat walls connected by vertical ribs. It is mainly manufactured from a high impact co-polymer polypropylene which is recyclable, durable, washable and reusable.

  • Polypropylene hollow fluted plastic boards was proved that it is suitable in the uses of packaging, advertising, construction.
  • Also known Polyflute sheet, Coroplast sheet, FlutePlast sheet, IntePro sheet, Proplex sheet, Correx sheet, Twinplast sheet, Corriflute sheet.

▋ Specification

Product Name PP Corrugated sheet
Raw Material 1.100% virgin polypropylene resin
2.Recycled polypropylene resin
Features 1. Light weight and easy processed
2. Moisture resistance and heat resistance
3. Aging resistance and high tensile strength
4. Chemical resistant and non-toxic
5. Easy to clean and maintain
Options 1.Flame Retardant
2.Corona treatment
5.Ultra-violet inhibiting
6.FDA approved resins
Width Width:2.2m(Max.)
Length Customized
HS code 3920999090
Country of origin China
Thickness (2mm-6mm) 2mm 3mm 4mm 5mm 6mm
Density (gsm) (2mm-6mm) 250-450 300-600 600-900 800-1200 900-1600
Skin Thickness (2mm-6mm) 0.0065″ 0.008″ 0.009″ 0.013″ 0.018″
Flute Thickness (2mm-6mm) 0.0065″ 0.008″ 0.009″ 0.013″ 0.018″
Thickness (8mm-12mm) 8mm 9mm 10mm 11mm 12mm
Density (gsm) (8mm-12mm) 1400-2000 1600-2000 1600-2200 2200-2400 2400-2600
Skin Thickness (8mm-12mm) 0.030″ 0.040″ 0.051″ 0.067″ 0.086″
Flute Thickness (8mm-12mm) 0.030″ 0.040″ 0.051″ 0.067″ 0.086″
Color Transparent, Blue, Yellow, Red, White, Black, Green or Customized
Application  Packaging: Bottles pad,Turnover Box,Display case,Components carton,Dustbin,  Fruits&vegetable tray.
 Advertising: Political signs, Activity signs,AD board,Real estate signs, Lawn decoration, Garden signs
 Protections: Wall protetion,Decoration,Floor guards.
Temperature Material can be used in -40~240°C.
Advantage Light Weight, Durable, Waterproof,Recyclable, Environment-Friendly, Non-Toxic, Non-Taste, Ageing Resistant And Corrosion Resistant
Type&Grade Common, Extruded, Fire Retardant, Corona Treated, Anti-Static, Conductive, UV Stabilized, etc.
Properties 1.Unaffected by water.
2.Stronger and more durable than corrugated fiberboard.
3.Extremely lightweight.
4.Won’t rust, rot, mildew or corrode like metal or wood.
5.Can be printed on easily and clearly.
6.Tear, puncture and impact-resistant.
7.Can be scored, creased, stapled, nailed, stitched, folded & drilled
8.Can be made for die-cut.
9.Can be sonic or heat welded.
10.Resists a wide range of chemicals, grease and dirt.
11.Can be produced with a non-skid coating on one side.
Packing PE Film and corner protectors, Plastic Pallets, Wooden Pallets,etc.
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▋ Production Video

▋ Production Line

  • 4 production lines for polypropylene corrugated sheet,
  • 2 sets of three-color printing presses,
  • 3 ultrasonic welding machines,
  • 3 sets of pallet sealing side machine,
  • Multiple cutting equipment.

▋ Application


Polypropylene hollow fluted plastic boards can easily be die-cut, folded and glued (Corona treatment requested). Ultrasound or hot welding allow for making highly sophisticated boxes.


  • Beam formwork
  • Fencing, construction panel
  • Floor, wall and window protection


  • Pallet upper/bottom protection sheets
  • Steel roll packing board
  • Roller packing board


Polypropylene hollow sheets accentuate the photo rendering of your print with its mat silk touch and make your prints stand out from the rest.

▋ Production Process

New PP material → Mixing raw material → Extrusion molding → Heating Coronation → Refrigerating → Cutting → Semi-finished products → Die cutting

▋ Quality Test

weighing test

water-proof test

thickness test

softness test

gravity test

flame retardant test

corona treatment

anti-static test

▋ Package & Transport

Packing and loading way:

  • Both sides with PE film ,on the outside with tape
  • Use plastic pallets at the bottom
  • Outside with pp or paper carton
  • According customer’s require

For instance:

  • 20’GP 3MM*1220*2440(96”*48”)3000 pieces
  • 40’GP 3MM*1220*2440(96”*48”) 6000 pieces
  • 40’HQ 3MM*1220*2440(96”*48”) 7200 pieces

▋ Get Quote