Coroplast® is an excellent material for reusable packaging. It can be converted into boxes, bins, totes, dividers. It is ideal for indoor and outdoor applications.
Specifications
Coroplast® strength and durability have no direct relationship to corrugated fiberboard. The figures provided are offered as a guide and may vary with resin batch and production quality of the finished container. The USAF has established a specification MIL-P-83668 (USAF) for plastic corrugated packaging applications.
Packaging sheets have a 2,500 ft2 minimum per thickness, color, size and must run together.
Basic Colors for Packaging:
White, Light Blue and Black
Standard Colors for Packaging:
Natural and Gray
Premium Colors for Packaging:
Yellow, Green, Red, Orange, Silver, Purple, Brown, Medium Blue and Navy Blue
Advantages of Coroplast® Containers
- Lightweight
- Usually designed to ship flat when empty
- Inert to nearly all acids, chemicals, detergents, grease & oils
- Withstands temperature extremes from -17F to 230F
- Decreases product damage better than corrugated paper
- Greatly reduces shipping costs
- Sanitary & maintenance free durability
- Maintains near new appearance for years
- 100% recyclable & environmentally friendly
Coroplast® Sleeve Packs
Sleeve packs made from the patented IntePro® TITAN structural double-layer diamond core are the premier choice for returnable packaging and material handling systems. With their extreme durability, weight reduction, long lifecycle and return ratio of up to 10:1, IntePro® TITAN sleeves are the perfect upgrade over conventional paper sleeve and molded plastic shipping systems
An IntePro® TITAN Sleeve Pack provides the industry-leading returnable shipping solution for clients looking to enhance the efficiency and recyclability in their logistical operations.
Features & Benefits
- Upgrade the sustainability in logistics operations
- Reduce material waste using returnable solutions
- 10-year life expectancy
- M-Fold sleeves
- 100% recyclable
- Printable
- Exceedingly long life cycle
- Ready for custom dividers
Stacking
Actual stacking loads on corrugated fiberboard cases are normally recommended to be the compression strength divided by a factor of 1.5 to 4.5, depending on the intended storage conditions. Tests on Coroplast® would indicate that a factor of 1.5 – 3.5 will probably be adequate over normal temperature ranges.
Extreme high temperatures will certainly have a negative effect on the stacking strength of Coroplast® boxes while very cool temperatures will increase the strength. Humidity will not cause any change in Coroplast® performance.
With corrugated fiberboard, the drop off in strength as humidity increases is dramatic.
A major performance test series has not yet been performed on Coroplast® boxes. Some independent preliminary test results are offered as a point of reference.
Compression of Other Weights/Densities of Coroplast® 10”x10”x10” Taped RSC
| Thickness | Weight | Compression Average of 6 |
|---|---|---|
| 4.0 mm | 600gm Black | 496 lb. sq. in. |
| 4.0 mm | 775gm Natural | 598 lb. sq. in. |
| 4.0 mm | 800gm White | 786 lb. sq. in. |
| 4.0 mm | 800gm Natural | 694 lb. sq. in. |
| 4.0 mm | 1000gm Natural | 1040 lb. sq. in. |
| 5.0 mm | 1000gm Natural | 1272 lb. sq. in. |
| 5.0 mm | 1000gm Blue | 1567 lb. sq. in. |
Rough Handling
The rough handling characteristic of Coroplast® compares well against fiberboard. Tests have shown that Coroplast® has significantly higher burst, puncture and edge and flat crush properties than B flute fiberboard.
Bursting Strength
Coroplast® will not burst on the Mullen tester.
Puncture
Test show puncture (Beach Impact) 3 – 4 times higher than corrugated fiberboard of similar stacking ability.
Impact Strength (lbs.sq.in.)
| Degrees F | 2.0mm / 400gm | 4.0mm / 700gm | 4.0mm / 775gm | 5.0mm / 1000gm |
|---|---|---|---|---|
| 74 | 5302 | 90.7 | 97.9 | 126.5 |
| 32 | 5 | 88.5 | 100.3 | 129.4 |
| -4 | 37.8 | 62.7 | 69.4 | 89.6 |
Cushioning
Cushioning test show that prior to complete crushing of the Coroplast® flutes; the peak decelerations are in the range of 150 – 400 grams. The acceleration time pulses show that even when fully crushed on the preceding crop, the Coroplast® fluting still resists subsequent compression and provides cushioning Coroplast® is easily compressed under both static and dynamic conditions than fiberboard. A higher stress is needed to crush the flutes and a higher energy is absorbed. The would indicate that Coroplast® will cushion slightly heavier weights from higher drops.
Corrugated Comparison Test
The tests were conducted at 72 degrees Fahrenheit with 50% relative humidity. The test samples were standard 4mm (150lb) polypropylene corrugate and 250lb c-flute corrugated paperboard. No additives were the in samples tested.
| Properties | Coroplast® | Paper Corrugate |
|---|---|---|
| Weight for test | 0.15 lbs./ sq ft. | 0.15 lbs. / sq. ft. |
| Water Absorption in 24 hours | 0.02% | 75% |
| Edge Crush | 45 lbs. sq. ft. | 5 lbs. sq. ft. |
| Flat Crush | 80 lbs. / sq. inch | 3 lbs. / sq. inch |
| Tear Strength | 1,700 grams | 10 grams |
| Tensile Strength | 4,000 lbs. / sq. inch | 200 lbs. / sq. inch |
| Impact Dart | 320 inches / lb. | 32 inches / lb. |
| Heat Deflection load @ 66 lbs. per sq. inch | 174 degrees | Not Applicable |
| Living Hinge | 21,000 cycles | 1,000 cycles |
The test results of same weight equivalent materials indicated that Coroplast® performance exceeds, in every area, the corrugate paper performance. This is especially true in the areas of the heat deflection load at 66 lbs. / sq. inch.
All strength test properties areas indicate a minimum ten-fold advantage (edge crush) with Coroplast® over the paper corrugate. In some instances, Coroplast® has a 3,750 fold (water absorption) advantage. It is also important to remember that comparison does not test contamination issues of the paper corrugate versus Coroplast® inert properties associated with chemicals, acids, detergents, greases and oil.
However, the result of water absorption test does give a hint of the expected test result of absorption of acids, chemicals, greases and oils. Thermal and hinge tests are an area that have unique properties addressed on by Coroplast®.
Overall, the end result is Coroplast® packaging protects your products better than corrugated paper.
Find a Coroplast® Dealer
Coroplast® has trusted distributors in the United States and Canada. Use our locator tool to find your neighborhood distributor.
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