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Different Fillings for Ice Packs: Types and Uses

Oct 10th,2023

Ice packs play a crucial role in our daily lives, offering versatile solutions for various cooling needs.

They are employed in diverse scenarios, from preserving perishables to providing relief from injuries.

Delve into the world of ice pack fillings, exploring their types and applications.

Ice Packs Types

Gel Ice Packs: ICE PACK

Gel ice packs contain a gel-like substance that remains flexible even when frozen. They are often used for injuries because they can conform to the shape of the body and provide cold therapy to reduce swelling and pain.

Reusable Ice Packs:

These ice packs are designed to be frozen and reused multiple times. They typically consist of a plastic or fabric pouch filled with a gel or liquid that freezes when placed in the freezer. Reusable ice packs are commonly used in lunchboxes, coolers, and for minor injuries.

Instant Cold Packs: 

Instant cold packs are single-use packs that contain chemicals that react when activated. When you squeeze or break the pack, it becomes cold within seconds. They are convenient for immediate cold therapy in emergency situations.

Ice Bags:

Sodium Polyacrylate for Ice Packing

Ice bags are simple, traditional ice packs made of rubber or plastic. They are filled with ice cubes or crushed ice and then sealed. These are often wrapped in a cloth or towel before applying to the skin to prevent frostbite.

Cooler Packs: 

Cooler packs are specifically designed for use in coolers or insulated bags to keep food and beverages cold. They are usually made of a durable plastic and contain a gel or liquid that stays cold for an extended period, helping to maintain a lower temperature inside the cooler.

Cryo Cuffs: 

Cryo cuffs are specialized ice packs designed for post-surgery or injury rehabilitation. They consist of a cuff that wraps around the affected area and a connected cooler that continuously circulates cold water to provide targeted cold therapy.

Ice Packs for Sports: 

These ice packs are often shaped to fit specific body parts, such as the knee, shoulder, or back. They are designed for athletes and individuals involved in sports activities to provide targeted cold therapy for muscle soreness and injuries.

Thermal Ice Packs: 

Thermal ice packs can be used for both hot and cold therapy. They can be heated in the microwave or cooled in the freezer, making them versatile for addressing a range of ailments. 

Disposable Ice Bags: 

These are similar to ice bags but are intended for single-use applications. They are commonly used in healthcare settings for short-term cold therapy.

Commercial Ice Packs: 

These ice packs are designed for industrial and commercial purposes, such as shipping and transporting perishable goods. They are typically larger and more durable than standard ice packs.

Different Fillings for Ice Packs

Fillings for Gel Ice Packs

Water-Based Gel: 

This is one of the most common fillings for gel ice packs. It consists of water mixed with a gelling agent, such as cellulose gum or sodium polyacrylate. Water-based gels are non-toxic and safe for use on the skin.

Propylene Glycol-Based Gel:

Some gel ice packs use a mixture of water and propylene glycol as the gel filling. Propylene glycol is a food-grade substance commonly used in various products, including food, cosmetics, and pharmaceuticals. It has a lower freezing point than water, which allows the gel to remain flexible at lower temperatures.

Ethylene Glycol-Based Gel: 

Ethylene glycol-based gels are similar to propylene glycol-based gels but use ethylene glycol instead. Ethylene glycol has a lower freezing point than water and is also used in antifreeze solutions. While it's generally safe when enclosed in the ice pack, it's essential to avoid any leakage or ingestion.

Silica Gel: 1df204331ce806e8_20231010133205_1920x0

Some gel ice packs contain silica gel, a moisture-absorbing substance often found in packets within packaging to prevent moisture damage. Silica gel can be used in combination with water or other liquids to create a gel-like consistency for cold therapy.

Clay-Based Gel: 

Clay-based gels use clay particles suspended in a liquid solution to create a pliable gel. These gels are often used for heat and cold therapy because they can maintain temperature effectively.

Polyacrylate Beads:

Polyacrylate beads are superabsorbent polymer beads that can absorb and hold a significant amount of water or other liquids. These beads can be used to create a gel-like consistency for gel ice packs.

Gel ice packs offer several benefits that make them a popular choice for cold therapy and other applications:


Gel-filled ice packs remain flexible even when frozen. This flexibility allows them to conform to the shape of the body, allowing them to be used comfortably on various parts of the body, including joints and muscles.

Cools longer: 

Gel ice packs stay cold longer than traditional ice packs filled with plain water. This prolonged cooling effect helps relieve pain and reduce inflammation.


Gel ice packs are designed to minimize the risk of leaks, ensuring the gel remains inside the pack even after thawing. This feature makes them a more practical choice in medical and therapeutic settings.


Many gel ice packs are designed to be reusable, allowing you to use them multiple times. After use, just refreeze it for next use, which is economical and environmentally friendly.


The gel inside these ice packs has a smooth, soft texture that feels more comfortable on the skin than solid ice or frozen water. This comfort is especially important when using cold therapy on sensitive areas.

Targeted relief: Gel ice packs can be molded and positioned to provide targeted relief to specific areas of the body, such as the neck, shoulders, or lower back. This makes them effective in treating localized pain and discomfort.

Reusable First Aid: 

Gel ice packs are often used in first aid kits because they are reusable and easy to use. In the event of an injury such as a sprain, strain or scrape, they can be activated quickly for immediate cooling.

Safe materials: 

Many gel ice packs are made of non-toxic and degradable polymer water-absorbent materials to ensure their safety in skin contact. This is especially important when using them on sensitive or injured skin.

QINGDAO SOCO NEW MATERIAL CO.,LTD specializes in manufacturing and selling super absorbent polymer(SAP). The main products include industrial SAP, agricultural SAP, and other SAP-related products.  

Our products have won many certificates and patents and passed multiple severe tests. For many years, we have been dedicating to providing better quality and better service, creating better solutions for our clients.


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