High Water Absorption Capacity Sodium Polyacrylate Ice Pack with Long-Lasting

Product Specification

Product Introduction

Environmentally Safe High-Capacity Water-Absorbing Ice Packs – Sodium Polyacrylate Formula
This ice pack is a high-performance cooling solution designed using sodium polyacrylate super absorbent polymer (SAP). Once hydrated, it forms a gel that locks in large amounts of water and maintains a cooling effect for long durations. Compared with traditional ice, this product is lightweight, reusable (depending on type), leak-proof, and far more efficient at retaining cold temperature.

Engineered with environmental safety in mind, this sodium polyacrylate-based ice pack is suitable for cold-chain logistics, food delivery, pharmaceuticals, medical transportation, outdoor sports, and daily cooling needs.

 Key Features

High Water Absorption Capacity
Each pack rapidly absorbs water and converts it into a gel capable of holding up to 200–500 times its weight (depending on grade).

Long-Lasting Cooling Performance
The gel structure retains cold temperature for hours, outlasting conventional ice in many applications.

Environmentally Safe & Non-Toxic
Made using harmless SAP material; safe for contact and disposal. Optional biodegradable formulation available.

Lightweight & Portable
Easy to carry and store—hydration occurs only before use, which greatly reduces shipping and storage cost.

Leak-Proof Gel Structure
Once hydrated, liquid becomes an immobilized gel, preventing leakage even under pressure.

Customizable Formulations & Sizes
Packaging, sheet size, SAP content, cooling duration, biodegradable version, and water-absorbing capacity can be tailored according to client needs.

Typical Applications

• Pharmaceutical cold-chain logistics & vaccine cooling

• Fresh food, seafood, fruit, and meat shipping

• Meal delivery and grocery transport

• Outdoor sports, first-aid cooling, camping, lunch box cooling

• Temperature-sensitive chemical samples or biological agents

 FAQ

Q1: What material is used inside the ice pack?

A: The internal material is sodium polyacrylate SAP, a super absorbent polymer that forms gel after absorbing water.

Q2: Is this ice pack toxic? Is it safe if damaged?

A: It is non-toxic and environmentally safe. If the pack is punctured, simply rinse away the gel; it does not release harmful chemicals.

Q3: How long does the cooling effect last?

A: Cooling duration varies by model and environment. Many packs can remain cool for 4–12 hours, while premium grades can last longer.

Q4: Can it be reused?

A: Some models are reusable (rehydrate-refreeze), while others are single-use for logistics. Custom types can be supplied per requirements.

Q5: How to activate the ice pack before use?

A: Soak the pack in clean water for 3–5 minutes, allow swelling and water absorption, then place it in a freezer for chilling before use.

Q6: Is it biodegradable?

A: Standard SAP is not naturally biodegradable. A biodegradable, eco-friendly version can be manufactured upon request.

Q7: Can it absorb liquids other than water?

A: It is optimized for water absorption. Salt-water or alcohol solutions reduce absorption performance but special custom formulations are available.