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FAQ

Most frequent questions and answers

Our main product is Polypropylene corrugated sheets, which is also known as coroplast or corflute. Find more in applications for this products relevant to your needs.

We are also manufacture of PP Corrugated sheet and PP Honeycomb Bubble Guard production lines.

We are Chinese manufacture located in Suzhou City, about two hour’s drive from Shanghai.

We can offer sheet samples in A4 size for free. Just tell us your requests.

Special requests for samples like box, special shape or printing. Please tell us more details first.

We will deal it for you.

Contact us by phone, Email or Whatsapp. You can find contact information in the bottom of each page. Our sales work will reply you in time.

Feel free to contact us please!

We have 5 productions lines which work 24/7, all year long. It will ensure our products can be finished in two weeks after order confirmed. MOQ is 500KGS.

We can store the products in our warehouse and send you the products separately as your plan.

Technical Data Sheet
Physical Qualifications 
Qualifications Method Unit Polypropylene *
special PP weight ISO 1183gr/cm³0.907
water absorbtion ISO 62%0.02
Thermal Specialities 
Speciality Method  Unit Polypropylene*
Air indexASTM D696mm/m°C0.18
Special temparatureDSCJ/g°C1.68
Thermic inflexion temp. ISO 75°C78
Thermic inflexion temp.ISO 75°C52
vicat softening temp. ISO 306°C148
vicat softening temp.ISO 306°C78
Mechanic Qualifications  - 1
qualifications Method  Unit Polypropylene*
drawing resistance ISO 527MPa38
split point ISO 527%800
stretch index ISO 178MPa1250
impact resistance ISO 180kJ/m²80
Shore hardnessISO 868-66
Mechanic Qualifications  - 2
qualifications Method  Unit Polypropylene*
comparasion of maximum 2,1mm/350grN/cm²Min. 3,7
tension 2,0mm/400grN/cm²Min. 1,4
3,0mm/650grN/cm²Min. 5,5
4,5mm/1000grN/cm²Min. 14,4
Optical Characteristics 
Specialities MethodUnitcorrugated sheet 
light transmissivity 2,0mm/400gr%58
2,5mm/450gr%53
3,0mm/500gr%51
4,0mm/1000gr%37
Electrical Characterictics 
qualifications  MethodUnitcorrugated sheet 
surface resistanceASTMD 257ΩCa. 1013
Electric static ( at 1MHz’)ASTMD 150--2,25
Division rate  (at  tg δ 1 MHz )ASTMD 150--‹ 5×10-4
Electric resistance  ( 500 V/sec)ASTMD 149kV/mm70

Contact Us

Contact us for a fast quote or the catalogue

Email:

sales@coropak.com

Phone:

+ 86 186 6221 7067

WhatsApp: +86 186 6221 7067

Email: sales@coropak.com

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