Typical Mechanical Properties

(a) Edge crush resistance (ECR) and flat crush resistance (FCR): PP sheet of straight flute and I-beam rib.
Item Test Method Unit 2 mm 3 mm 4 mm 5 mm 6 mm 8 mm 10 mm 13 mm
Unit Weight g/m2 490 600 750 1000 1400 1800 2000 2500
FCR TAPPI-825 lb/in2 190 90 170 170 230 140 140 280
ECR TAPPI-811, Method A(1) lb/in 20 40 55 70 100 NB(3) NB(3) NB(3)
ECR TAPPI-811, Method B(2) lb/in — — — — 25 55 80 115
(1) The test specimen is 2″ in width and 2″ in height.
(2) The test specimen is 8″ in width and 10″ in height.
(3) NB: no bending during the test
(b) Mullen Burst (TAPPI-810): no burst up to 1,000 psi for all thickness

Typical Physical Properties

(a) Thermal Expansion Coefficient (ASTM D 696):
from -30 to 0oC 6.5 x 10–5 oC-1
from 0 to 30oC 10.5 x 10–5 oC-1
from 30 to 60oC 14.0 x 10–5 oC-1
(b) Water Absorption at 24 hours immersion (ASTM D 648): 0.03%
(c) Melting Temperature (DSC method): ~ 165oC
(d) R-Value at 75oF Mean (ASTM C-177): 0.078 x l (thickness in mm)
(e) Water Vapor Transmission Rate (WVTR) at 23oC (ASTM C 209):
WVTR, g/(100 in2 x Day) = 1.3 x 10-6 x (p1 – p2) / l
Where p1 and p2 are the partial pressures of water vapor in Pascal at the two exposed
surfaces is the total thickness in millimeter of the two skin layers
(f) Sound Transmission Loss from 400 to 12,800 Hz (SAE J1400):
4mm , 154 lb/msf 9.6-12.8 dB
10 mm , 410 lb/msf 13.1-16.3 dB
(g) Coefficient of Friction, Static (COF, ASTM D 1894): ~ 0.30 along the flute direction.

Typical Chemical Properties

(a) FDA Status : The based resin material meets the requirements of the Food
and Drug Administration, 21 CFR 177.1520, for a resin that may be processed for use
involving contact with food.
(b) Chemical Resistance: PP profile sheet is resistant to acids, alkalis, salt solutions, solvents, alcohol, water, oil, fat and detergent at room temperature. PP profile sheet is not resistant to aromatic or chlorinated hydrocarbons such as benzene at elevated temperatures and strong oxidizing agents.
(c) pH value: PP profile sheet is inert and hydrophobic. Therefore, generally does not
affect the pH factor when it is in contact with an aqueous solution.
Recycle/ Safety
(a) PP profile sheet is produced from a high impact polypropylene copolymer and is fully
recyclable. The resin identification code (RIC) of polypropylene according to Society
of the Plastics Industry (SPI).
(b) If recycling is not possible, disposal to landfills or incineration in accordance with
governmental laws and regulations is considered safe.

Special Grades

(a) UltraSmooth : The surface roughness of 4 mm white boards were tested by a
Hommel T1000 surface roughness tester. The Ultrasmooth improves the surface
roughness, Ra value, of regular corrugated PP boards in the industry from about 300 x 10-6 to
80 x 10-6 inch in the cross flute direction!
(b) SuperClear: Regular natural color is milky and can not be seen through.
SuperClear substantially enhances the transparency of the board. SuperClear
of 10 mm thick has a contact clarity of 69% (ASTM D1746, specimen is in contact
with the sensor window) as compared to about 25% of regular corrugated PP boards of natural color. SuperClear tends to be more brittle as compare to regular natural, users are
strongly recommended to make their own tests and evaluation when converting works, such as cutting, slitting, etc., are necessary.
(c) Flame Retardant : 3 and 4 mm flame retardant sheet was tested according to
ASTM E-84 to have a flame spread of < 25 and smoke developed index of < 450. Therefore,
flame retardant sheet is classified as class A Interior Wall & Ceiling Finish according to
National Fire Association Life Safety Code 101, Section 6-5.3.
(d) Conductive : The surface resistance tested according to ASTM D 257 is 103 to 105 ohms /square. The static decay according to FTM 101C is less than 2 seconds. Only black color is available. The conductivity of the sheet is permanent.
(e) Ultra Outdoor Weather Resistant : White polypropylene of ultra outdoor weather resistance was tested in a weatherometer according to SAE J1960 for 2,500 hours,
which corresponds to 1 year in Miami, FL, without brittleness. The outdoor weather
resistance relates to the color, temperature, application environment, etc., users are strongly
recommended to make their own tests and evaluation. For extended outdoor exposure over
one year, it is recommended to use polyethylene material.
(f) Volatile Corrosive Inhibiting (VCI): VCI contains volatile corrosive inhibitor, which can settle on exposed metal in a package, to protect metal from corrosion and
extend the storage life. The protection of VCI relates to the temperature, humidity of
the environment, the design of the containers, etc., users are strongly recommended to make
their own tests and evaluation to determine feasibility.

Note: Please note that the above information is to the best of our knowledge and is made without guarantee. We can not anticipate all conditions under which this information and our product, or the products of other manufactures in combination with our products may be used. Users are advised to make their own test and evaluation to determine the safety and suitability for their own purposes. We accept no responsibility for results obtained by the application of the information or the safety and suitability of our products.

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