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The corflute sheets (also called corrugated plastic sheets, fluted
plastic sheets, coroplast sheets etc.) are extruded from the PP
(polypropylene ) or PE (polyethylene, or called polythene) resin.
The sheet has a similar corrugated structure as the paper
cardboard, but its flutes are rectangular. The density of the
polypropylene is about 0.9 g/cm3 which is one of the lightest plastic material. With this hollow
construction plus the light material, the sheet has a very
important feature of light-weight.
The general physical characteristics of the fluted plastic sheets
are as follows.
Thickness | 2mm | 3mm | 4mm | 5mm | 6mm | 7mm | |
Density GSM | 300-600 | 350-800 | 600-1300 | 800-1500 | 900-1800 | 1000-2000 | |
Color | any color available | any color available | any color available | any color available | any color available | any color available | |
Surface Tension *(dyne/cm) | 35 | 35 | 35 | 35 | 35 | 35 | |
breaking strength | along the flutes | >160 N | >170 N | >190 N | >200 N | >210 N | >220 N |
across the flutes | >140 N | >150 N | >160 N | >170 N | >180 N | >190 N | |
ultimate elongation | along the flutes | 150% | 150% | 150% | 190% | 190% | 190% |
across the flutes | 40% | 40% | 40% | 50% | 50% | 50% |
* for polypropylene material
The corflute sheet has the inert chemical property with a neutral
PH value of 7. The material of PP or PE is non-toxic, odorless.
These characteristics let the corflute sheets be the perfect
material to make plastic boxes to store foods like fruits,
vegetables.
Unlike the paper cardboard which loses its rigidity when absorbing
the water, the fluted plastic sheets are water and moist repellent
which is suitable for the applications which need against the wet
environment, such as fruit & vegetable plastic boxes which need
put into refrigerated storage house, the greenhouse roofing, etc..
The fluted plastic sheets are not only repellent to the water, but
also resistant to oils, almost all organic solvents at room
temperature. This property lets them be the protection material
widely used in many industries, such as automobile manufacture,
machinery manufacture. For example, The plastic boxes below are
made of corflute sheets with dividers to storage the automobile or
machine components.
The boxes which are made of corflute sheets can be washed up for
reusing many times. Even the broken boxes can be re-melted for
recycling usage. The corflute sheets are the environment-friendly
material.
Our factory can offer customized corflute sheets according to your
needs. We can provide the corflute sheets with the specific size,
thickness, and weight. We can die-cut the corflute sheets according
to your design. Or we make the final coflute sheets boxes to you.
Welcome to send your requirements to us, and enjoy our professional
services