LDPE Ice Bag
| Color | transparent |
| Material | LDPE/LLDPE |
| Handle shape | PP string handle |
| Bottom shape | Flat bottom seal |
| Size | Customized |
| Thickness | 30-50mic |
| Surface dealing | Plain/Embossed |
| Printing | Customized |
| Payment term | T/T, L/C |
| Delivery terms | FOB/CIF/CNF |
| Sample | Available |
Ice bags play an essential role in today’s food preservation and cold-chain transportation industry. From seafood exporters and supermarkets to convenience stores and restaurants, reliable ice packaging helps maintain product freshness and hygiene during storage and delivery. At Vietpak, we specialize in manufacturing professional ice bags in Vietnam, offering durable, food-safe, and cost-effective solutions for both domestic and international markets.
Premium Ice Bags Made from 100% Virgin Material
Contents
Vietpak ice bags are produced using 100% virgin polyethylene (PE) material, ensuring outstanding strength, flexibility, and safety for food contact applications. Unlike recycled plastic bags that may become brittle under freezing conditions, virgin material provides superior performance when exposed to extremely low temperatures.
The use of virgin resin offers several important advantages:
- Excellent transparency for better product presentation
- Strong sealing performance to prevent leakage
- Higher tensile strength and puncture resistance
- Odor-free and hygienic packaging
- Compliance with food-contact safety requirements
Because ice bags are often used directly with consumable products, material quality is one of the most important factors. Vietpak prioritizes raw material consistency to ensure every bag meets strict quality standards.
Typical Temperature Range of Ice Bags
- Ice bags work best between -40°C and +60°C.
- They are mainly made for ice cubes, crushed ice, or frozen products.
- Standard freezer temperature (around -18°C) is completely safe.
- Do not pour boiling water into an ice bag because plastic may soften or leak
Why Do Some Ice Bags Crack in the Freezer?
Ice bags usually fail not because of temperature alone, but because of loss of flexibility at low temperatures.
1. Low-Quality or Recycled Material
The biggest reason is the use of high recycled content.
When recycled plastic is used:
- Polymer chains are shorter
- Flexibility decreases
- Plastic becomes brittle under freezing conditions
- At temperatures around -18°C to -25°C, recycled material may behave like glass and crack easily.
100% virgin LDPE material remains flexible, even in deep freezing environments.
2. Excessive CaCO₃ (Calcium Carbonate) Filler
Many factories add CaCO₃ to reduce cost.
However high filler percentage reduces elasticity and and impact resistance drops significantly. Besides, bags will be torn when ice expands or during handling
3. Thickness Too Thin for Ice Expansion
Water expands about 9% when freezing into ice.
If the bag is too thin, internal pressure will increases and seal areas become stressed. Therefore, micro-cracks appear during freezing
Thin bags may look strong at room temperature but fail inside freezers.
4. Poor Sealing Quality
Even when thickness is correct, weak sealing can cause failure.
Common sealing problems:
- Overheated seal: brittle line
- Under-heated seal: leakage
- Uneven seal pressure
Since the seal area carries most of the load, cracking often starts from the bottom seal.
Why Choosing Vietpak for Wholesale Ice Bags?
If you are looking for a reliable ice bag manufacturer in Vietnam, Vietpak offers high-quality products tailored to your business needs. Our professional ice bags made from 100% virgin material are designed to withstand temperatures down to -25°C, ensuring safe and efficient ice packaging under demanding conditions.
For quotations, customization, or technical consultation, please contact Vietpak today
Vietpak Company Limited
Website: www.vietpak.vn
Email: info@vietpak.vn
PRODUCT CATEGORIES
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What Is an LDPE Ice Bag?
March 5, 2026
LEADING MANUFACTURER
We are a premier plastic bag manufacturer based in Vietnam. Our dedicated team excels in crafting customized packaging solutions to precisely meet the needs of all customers
QUALITY CONTROL
We have a strict quality control system. Our bags are inspected before production, during production, and prior to loading into containers. Our priority is to minimize every defective goods before shipping to our customers
AMAZING SERVICE
Our enthusiastic customer service team always strives to respond to your emails as promptly as possible. We take pride in our ability to consistently deliver high-quality products on time, every time.