Short answer: The right packaging material depends on what you are protecting. Use PE for flexible, everyday bags; PP/OPP for clarity and stiffness; PET for strength and a barrier layer; EVA/CPE for a soft, frosted feel; kraft for a natural look; aluminum-foil laminates for a high barrier; and PLA/PBAT when you need compostable packaging. This guide compares each material so you can match it to your product.

Packaging materials at a glance

Material	Key properties	Best for
PE (LDPE/HDPE)	Flexible, sealable, low cost	Zipper bags, mailers, liners, garment bags
PP / BOPP / OPP	Clear, glossy, stiff	Retail display bags, header bags, wraps
PET	Strong, heat-resistant, good barrier layer	Laminated pouches, stand-up pouches
EVA / CPE	Soft, frosted, matte hand-feel	Apparel, cosmetics, premium slider bags
Kraft paper	Natural look, printable, recyclable	Eco retail bags, food-safe liners inside
Aluminum-foil laminate	High barrier to light, oxygen, moisture	Coffee, tea, supplements, long shelf life
PLA / PBAT	Compostable, plant-based or degradable	Brands needing sustainable packaging

Each material, explained

PE (polyethylene)

The workhorse of flexible packaging. LDPE is soft and clear; HDPE is stiffer and hazier. PE is easy to seal and print, low cost, and used for everything from zipper & ziplock bags to garment and courier bags.

PP, BOPP and OPP

Polypropylene films are clearer and stiffer than PE, giving a crisp, glossy look that suits retail display. OPP/BOPP is popular for header bags and product overwraps where shelf appeal matters.

PET (polyester)

PET adds strength and heat resistance and is often the outer layer of laminated stand-up pouches. Combined with foil or PE, it builds a durable, high-barrier structure.

EVA and CPE

These give a soft, frosted, matte hand-feel that reads as premium — a favorite for apparel and cosmetics slider bags. See our comparison of frosted vs clear vs foil packaging.

Kraft paper

Kraft delivers a natural, recyclable look and prints well. It is often paired with a food-safe inner liner for products that need both an eco image and protection.

Aluminum-foil laminates

When shelf life is critical, a foil layer blocks light, oxygen and moisture almost completely — essential for coffee, tea, supplements and other sensitive goods.

PLA and PBAT

For sustainability goals, PLA (plant-based) and PBAT (degradable) offer compostable alternatives. Read our PLA/PBAT biodegradable packaging guide for how they compare to conventional plastic.

How to choose material by product type

Food products — food-grade PE or foil laminates; see food-grade packaging bags.
Apparel & cosmetics — frosted EVA/CPE or clear OPP for shelf appeal.
Coffee, tea & supplements — foil-laminated pouches for barrier and freshness.
Shipping & e-commerce — co-extruded PE mailers, or foil/opaque for security.
Eco-focused brands — kraft, recyclable mono-material PE, or compostable PLA/PBAT.

About Bowen New Material

Bowen New Material (Dongguan) Co., Ltd. is an OEM/ODM custom packaging manufacturer. We help brands match the right material, thickness and structure to each product, then produce it with ISO 9001 quality control and 100% pre-shipment inspection. Explore our product range or custom packaging service.

Frequently asked questions

What is the most common plastic used for packaging bags?

Polyethylene (PE) is the most widely used, because it is flexible, easy to seal and print, and cost-effective for bags, mailers and liners.

What is the difference between PE and PP bags?

PE is softer and more flexible; PP (including OPP/BOPP) is clearer and stiffer with a glossier finish, which suits retail display packaging.

Which packaging material has the best barrier for food freshness?

Aluminum-foil laminates offer the highest barrier to light, oxygen and moisture, which is why they are used for coffee, tea and supplements.

What is a food-grade packaging material?

A food-grade material is made and certified for direct food contact using approved resins and inks. Always request food-grade documentation for food or cosmetic products.

Are there biodegradable packaging materials?

Yes. PLA is plant-based and compostable under the right conditions, and PBAT is a degradable polymer; both can replace conventional plastic where sustainability is a priority.

Not sure which material fits your product? Send us a sample or spec and we will recommend the material and structure, then quote with MOQ and lead time. Request a custom quote.