Dried Concentrates (Moisture-Absorbing Masterbatch Granules)
As the name suggests, dried concentrates are advanced functional materials developed to solve moisture-related issues. A desiccant is a substance designed to eliminate moisture and enhance extrusion and injection molding processes. It provides a complete solution for processors to reduce or remove unwanted moisture.
Moisture can be found in raw materials such as hygroscopic polymers, fillers, and pigments. These concentrates are used to remove moisture from raw and recycled materials such as HM, LDPE, LLDPE, and PP.
Dried concentrates are suitable for blown film extrusion, injection molding, and blow molding processes. They are directly used by homogeneously mixing the concentrates with moist plastic materials.
Moisture-absorbing masterbatch granules are available in pellet form, with a high concentration of active agents and excellent dispersion in the final product. The benefits of using this product include preventing processing issues such as coating bubbles, holes, and cracks.
Why Use Dried Concentrates?
Dried concentrates address issues caused by moisture during plastic processing and prevent moisture absorption during transportation.
Moisture can exist in raw materials like hygroscopic polymers, fillers, and pigments. Reprocessed polymers may also contain high moisture levels, which can lead to porosity, gaps, reduced tensile strength in final materials, or defects in extruded/blown sheets. In film applications, high moisture levels can cause film bubbles to burst.
How Do Dried Concentrates Work?
Dried concentrates chemically bond with moisture during processing, allowing higher levels of reprocessed polymers and fillers.
They help to reduce:
Coating bubbles
Gaps in films
Silver streaks in molding processes
Advantages of Dried Concentrates:
Increases filler addition levels
Maintains durability
Resolves moisture-related defects: bubbles, holes, streaks, and surface imperfections
Enhances mechanical properties
Eliminates moisture issues caused by additives/pigments
Reduces metal corrosion in extrusion machines
Eliminates the need for drying hygroscopic polymers
Zero energy consumption
No investment in drying machines
No factory space required
High moisture absorption capacity
Instantly solves moisture issues without production stoppage
Eliminates the need to dry waste before reuse
Applications of Dried Concentrates (Moisture-Absorbing Masterbatch Granules):
Plastic bags
Agricultural plastic films
Plastic-like paper products
Garbage bags
Recycled polymer processing
Cylinders and barrels
Woven bag processing
Injection molding
Double-wall sheets
Thermoformed sheets
Corrugated pipes
Why Choose Dried Concentrates from Pure Polymers?
Pure Polymers’ dried concentrates are highly recommended as additives, not only for converting recycled polymers (especially post-consumer materials) but also for raw polymers (due to storage issues or hygroscopic properties) that require costly and slow drying processes.
These concentrates chemically react with water molecules during plastic processing, effectively removing them. They are particularly useful for products made with hygroscopic materials where moisture-related defects (e.g., coating bubbles) are common.
Recommended Dosage:
Average dosage: 1-3%.
Storage & Usage:
Highly moisture-absorbent
Use within 16–24 hours after opening
Keep the original packaging sealed
Pre-drying may be required
Avoid excessive heat
Packaging: 5 kg bags
Special Features:
Increases plastic value
Prevents or reduces moisture
Improves quality
Cost-effective and economical
Environmentally friendly and non-toxic
Dried Concentrates for Polyethylene (DES01)
Removes moisture from HDPE, LLDPE, LDPE, and starch-based bio-materials.
Replaces drying equipment, reducing energy and production costs
Mixed with HDPE, LLDPE, LDPE granules
Prevents weight loss from polymer drying
Non-toxic and eco-friendly
Product Description:
Recycled polyethylene and polypropylene often contain residual moisture. If not removed, this moisture can cause bubbles or leakage marks in finished products.
Moisture-absorbing plastic masterbatch is a new type of masterbatch specifically designed to remove moisture from polyethylene and polypropylene recycling processes. It simplifies drying, making it easy to use while improving production efficiency and reducing energy consumption.
Applications:
Widely used in recycled PE and PP materials
Suitable for plastic molding, injection, and film blowing
Shelf Life:
8 to 84 hours when exposed to air
6 to 12 months when well-packed
Use quickly for best results
If the granules turn completely white, do not use them
Handling & Storage:
Store in a dry, well-ventilated place away from sunlight and rain
Handle gently to prevent damage
Use appropriate transportation and storage methods
Additional Information:
Works like color masterbatch
Do not heat during mixing
Safe, non-toxic, and SGS-compliant
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