Benefits of Reusable Corrugated Plastic Boxes
CoolSeal's lightweight boxes are 100% recyclable and environmentally friendly.
We heat seal the edges in order to increase strength, improve insulation, eliminate potential contamination in open flutes, and to provide easy and efficient storage and transportation.
The strong, fiber-free packing boxes have an easy-to-erect design that ships flat, and compared to EPS they have similar internal volume with much smaller outer dimensions. The result is more pounds of product per pallet.
CoolSeal boxes are made of corrugated polypropylene (PP5) and are completely recyclable, making them a fiber-free, environmentally friendly alternative to expanded polystyrene (EPS) and waxed corrugated boxes.
CoolSeal containers are a cost effective solution for meeting the expectations of customers seeking to reduce waste created by non-recyclable packaging materials.
CoolSeal packaging has been widely used in Europe for many years to accommodate the mandate for the elimination of non-recyclable packaging materials.
As the expectation for fully recyclable packaging materials grows in the United States, look to CoolSeal as a replacement for EPS and waxed corrugated packaging.
Our patented Sealed Edge Technology is used to seal the edges to provide a strong, hygienic box that is virtually unbreakable. This feature:
- Eliminates the potential for contaminants to enter open flutes
- Improves the strength of the box
- Improves the insulating properties by trapping the cold air inside the walls of the box
The strong, fiber-free packing boxes have an easy-to-erect design that ships flat, and compared to EPS they have similar internal volume with much smaller outer dimensions. The result is more pounds of product per pallet.
Trapped air is the key. Air is trapped in the flutes with our Heat Sealing Technology, this manufacturing process allows us to seal the material and trap the cool air inside, making it a stronger, leakproof package with improved insulating properties.
The plastic polypropylene corrugated material we use is lightweight and is strengthened through the process of heat sealing the edges.
This trapped air in the tray and the lid improves the insulating properties of the package by restricting the flow of temperature. Each CoolSeal box surrounds it's contents with a wall of trapped air for insulation and strength.
We manufacture standard leakproof boxes ranging in size from 5lb (3kg) to 50lb. Our standard leakproof box base has a ‘fold-over-end’ design making it completely watertight. An added benefit to a completely waterproof material with sealed edges that eliminates the risk of bacterial contamination in open flutes.
Certified for air freight you can be sure your product will reach its destination by the fastest means possible in excellent condition. Your freight provider will no longer need to be concerned with leakage from your packages. Popular with any retailer interested in reducing waste disposal cost and supporting their Green initiative.
Frequently Asked Questions
What are CoolSeal boxes made of?
CoolSeal boxes are made of corrugated polypropylene (PP5), a plastic that does not absorb water. The edges are heat-sealed, and the plastic, glues, and inks are all recyclable. The boxes ship flat, fold by hand, and can be printed with your branding.
Benefits of reusable corrugated plastic boxes
What is sealed edge technology?
Sealed edge technology means CoolSeal heat-seals the open flutes (the hollow channels inside corrugated plastic) along every cut edge. The seal keeps water, dirt, dust, and oils out of the board, makes the box easier to clean and reuse, and adds strength.
Benefits of reusable corrugated plastic boxes
Are CoolSeal boxes food safe?
Yes. CoolSeal boxes comply with FDA food contact regulations (21 CFR 177.1520), and CoolSeal USA provides a written FDA letter of guarantee. The sealed edge also closes the open flutes, so dirt and moisture cannot collect inside the board.
Technical information and downloads
How do CoolSeal boxes compare with waxed corrugated and Styrofoam?
CoolSeal boxes are reusable, keep their strength when wet, and ship flat. Waxed corrugated softens when wet, and Styrofoam can crack and shed beads. Traditional wax-coated boxes are also generally not accepted in standard cardboard recycling, and Alaska Airlines does not accept Styrofoam for seafood checked as baggage.
| Feature | CoolSeal (PP5) | Traditional Waxed Corrugated | Styrofoam (EPS) |
|---|---|---|---|
| Strength when wet | Holds its shape | Softens | Can crack |
| Ships flat | Yes | Yes | No |
| Liner needed | No | Yes for air freight: 4-mil polyethylene (Alaska Air Cargo) | Varies by carrier |
| Recycling | PP5 recyclable | Generally not accepted | Limited |
Fresh seafood boxes | Alaska Air Cargo, Alaska Airlines baggage rules, Earth911 on waxed cardboard
Are CoolSeal boxes recyclable?
Yes. CoolSeal boxes are PP5 (polypropylene, resin code 5), and the plastic, glues, and inks are all recyclable. Recyclers that process PP5 purify used polypropylene into resin that manufacturers can extrude into new plastic. Local acceptance varies, so ask your recycler before you drop boxes off.
Benefits of reusable corrugated plastic boxes
What does closed-loop mean at CoolSeal?
At CoolSeal, closed-loop means the plant takes scrap from extruded plastic, regrinds it on site, and uses it to make new plastic. It does not mean CoolSeal takes back used boxes. CoolSeal does not take boxes back, so send used boxes to a recycler that accepts PP5.
