CRYSTALADD® HM-664
HM-664 is an additive concentrate containing Milliken's Hyperform® HPN-210M nucleator. This masterbatch compound is designed to reduce cycle time in injection molded polyethylene parts, improve stiffness and HDT, and reduce or improve warpage challenges during processing.
Key Features:
- Designed to be added to injection molded polyethylene parts
- Improved stiffness, HDT and part uniformity
- Uniform concentration of additives in concentrate form.
- Masterbatch pellet form for ease of addition and feeding into extrusion equipment
Directions for Use:
- HM-664 is added to HDPE or LLDPE at 2.5% to 5% to achieve faster cooling, higher crystallization temperature and a higher crystallization rate. Parts are ejected from the mold with at a higher overall temperature but will have more completed crystal formation, allowing for a reduced overall cycle time.
FDA Compliance:
- This product is not approved for use in food contact applications at this time, but will be updated once regulatory tests are completed.
General Properties
Access the complete datasheet details for CRYSTALADD® HM-664 when you create your free account with Prospector. You’ll find complete information on physical, mechanical and hardness specs.
Technical Datasheet (English)
Download DocumentProcessing
Find specific processing information for CRYSTALADD® Nucleator Masterbatch as well as general information for the Polyethylene, High Density generic family. Register or Sign In for more information.
Where To Buy
You can purchase CRYSTALADD® HM-664 from 4 distributors or manufacturers. Register or Sign In for more information.
Find UL Yellow Cards

UL's Yellow Cards are a globally recognized safety and quality guarantee, a certified demonstration of how plastics have met a specific set of performance credentials.
PROSPECTOR
Find solutions, not just materials.
When you join Prospector, you leverage the dynamic tools and features to find solutions fast.
Register Today