GY-MI-01 is supplied as a free-flowing crystalline white powder with excellent dispersibility,
ensuring uniform incorporation into polymer matrices without process disruption.
Properties
| GRADE | GY-MI-01 |
| Physical State | Crystalline powder |
| Color | White |
| Proportion | 0.5±0.1 |
| Flash point °C | >280 |
| Dispersibility | Excellent |
Flash point above 280 °C ensures safe operation at typical polymer processing temperatures.
Uniform distribution throughout the melt minimizes property variation across the finished part.
Flash point above 280 °C ensures safe operation at typical polymer processing temperatures.
Uniform distribution throughout the melt minimizes property variation across the finished part.
Directly and reliably increases the melt index of target polymers, providing formulators with precise control over melt flow without reformulation of the base resin.
Prevents the throughput losses and cycle time increases associated with low-MI materials in extrusion, injection molding, and blow molding processes.
Retains performance integrity at demanding processing temperatures, with a flash point exceeding 280 °C, ensuring consistent results across thermal profiles.
Improves melt uniformity and surface quality of finished parts, supporting tighter dimensional tolerances and reduced scrap rates.
Maintains consistent performance across varying batch compositions, including recycled content, colorant-loaded compounds, and multi-generation regrind.
Flash point above 280 °C ensures safe operation at typical polymer processing temperatures.
Uniform distribution throughout the melt minimizes property variation across the finished part.
Directly and reliably increases the melt index of target polymers, providing formulators with precise control over melt flow without reformulation of the base resin.
Prevents the throughput losses and cycle time increases associated with low-MI materials in extrusion, injection molding, and blow molding processes.
Retains performance integrity at demanding processing temperatures, with a flash point exceeding 280 °C, ensuring consistent results across thermal profiles.
Improves melt uniformity and surface quality of finished parts, supporting tighter dimensional tolerances and reduced scrap rates.
Maintains consistent performance across varying batch compositions, including recycled content, colorant-loaded compounds, and multi-generation regrind.
Flash point above 280 °C ensures safe operation at typical polymer processing temperatures.
Uniform distribution throughout the melt minimizes property variation across the finished part.
Directly and reliably increases the melt index of target polymers, providing formulators with precise control over melt flow without reformulation of the base resin.
Prevents the throughput losses and cycle time increases associated with low-MI materials in extrusion, injection molding, and blow molding processes.
Retains performance integrity at demanding processing temperatures, with a flash point exceeding 280 °C, ensuring consistent results across thermal profiles.
Improves melt uniformity and surface quality of finished parts, supporting tighter dimensional tolerances and reduced scrap rates.
Maintains consistent performance across varying batch compositions, including recycled content, colorant-loaded compounds, and multi-generation regrind.
GY-MI-01 is engineered for broad polymer compatibility, making it a versatile additive
across virtually every major resin platform in the plastics and elastomer industries.
PP, PE, HDPE, LDPE, EVA, POE — the workhorses of packaging, film, pipe, and automotive applications.
PVC and PS — widely used in construction, consumer goods, and packaging sectors.
ABS, PC, PET, PBT, PA6, PA66 — high-performance resins in automotive, electronics, and industrial components.
TPE, TPU, TPR, TPO — flexible systems requiring precise rheological control for consistent finished properties.
Below are representative application examples.

GY-MI-01 integrates seamlessly into the most common polymer conversion processes,
providing MI correction at the point of manufacture with no additional equipment required.
Suitable for single- and twin-screw extrusion of profiles, pipes, films, sheets, and compounding
lines where consistent melt viscosity is critical.
Improves fill characteristics and cycle times in injection molding of structural and precision
components across automotive, electronics, and consumer goods.
Optimizes parison formation and wall thickness uniformity in blow molding of bottles,
containers, and hollow parts.
Applied during pelletizing and compounding to normalize MI in masterbatch,
color concentrate, and recycled resin production.
The GYC Technical Department recommends an addition rate of 0.5% to 3.0% by weight.
Customers are advised to optimize the dosage based on specific material characteristics,
base resin MI, and target MI adjustment requirements.
For complex formulations or highly recycled-content compounds, pilot-scale trials are
recommended to confirm the optimal loading before full production runs.
20KGPer bag
280°CFlash Point
GY-MI-01 is engineered for broad polymer compatibility, making it a versatile additive across virtually every major resin platform in the plastics and elastomer industries.
PP, PE, HDPE, LDPE, EVA, POE — the workhorses of packaging, film, pipe, and automotive applications.
PVC and PS — widely used in construction, consumer goods, and packaging sectors.
ABS, PC, PET, PBT, PA6, PA66 — high-performance resins in automotive, electronics, and industrial components.
TPE, TPU, TPR, TPO — flexible systems requiring precise rheological control for consistent finished properties.
GY-MI-01 integrates seamlessly into the most common polymer conversion processes, providing MI correction at the point of manufacture with no additional equipment required.
Suitable for single- and twin-screw extrusion of profiles, pipes, films, sheets, and compounding lines where consistent melt viscosity is critical.
Improves fill characteristics and cycle times in injection molding of structural and precision components across automotive, electronics, and consumer goods.
Optimizes parison formation and wall thickness uniformity in blow molding of bottles, containers, and hollow parts.
Applied during pelletizing and compounding to normalize MI in masterbatch, color concentrate, and recycled resin production.
GY-MI-01 is engineered for broad polymer compatibility, making it a versatile additive across virtually every major resin platform in the plastics and elastomer industries.
PP, PE, HDPE, LDPE, EVA, POE — the workhorses of packaging, film, pipe, and automotive applications.
PVC and PS — widely used in construction, consumer goods, and packaging sectors.
ABS, PC, PET, PBT, PA6, PA66 — high-performance resins in automotive, electronics, and industrial components.
TPE, TPU, TPR, TPO — flexible systems requiring precise rheological control for consistent finished properties.
GY-MI-01 integrates seamlessly into the most common polymer conversion processes, providing MI correction at the point of manufacture with no additional equipment required.
Suitable for single- and twin-screw extrusion of profiles, pipes, films, sheets, and compounding lines where consistent melt viscosity is critical.
Improves fill characteristics and cycle times in injection molding of structural and precision components across automotive, electronics, and consumer goods.
Optimizes parison formation and wall thickness uniformity in blow molding of bottles, containers, and hollow parts.
Applied during pelletizing and compounding to normalize MI in masterbatch, color concentrate, and recycled resin production.
Suitable for single- and twin-screw extrusion of profiles, pipes, films, sheets, and compounding lines where consistent melt viscosity is critical.
GY-MI-01 integrates seamlessly into the most common polymer conversion processes, providing MI correction at the point of manufacture with no additional equipment required.
Suitable for single- and twin-screw extrusion of profiles, pipes, films, sheets, and compounding lines where consistent melt viscosity is critical.
Improves fill characteristics and cycle times in injection molding of structural and precision components across automotive, electronics, and consumer goods.
Optimizes parison formation and wall thickness uniformity in blow molding of bottles, containers, and hollow parts.
Applied during pelletizing and compounding to normalize MI in masterbatch, color concentrate, and recycled resin production.
Melt Flow Index (MFI) is a key parameter used to evaluate the flowability of thermoplastic polymers.
A higher MFI generally indicates better flow behavior during processing, which can improve production
efficiency and molding quality.
However, recycled materials, temperature variation, and filler addition may cause unstable melt index,
resulting in poor processing performance. Melt index modifiers such as GY-MI-01 provide a reliable
solution to control polymer flow characteristics.
GO YEN CHEMICAL INDUSTRIAL CO., LTD. (GYC GROUP) is a leading Asian manufacturer of specialty chemicals,
dedicated to delivering innovative products and technical solutions to customers worldwide.
The GY-MI Series represents GYC's commitment to solving real-world processing challenges
in the plastics and elastomer industries.
40+ years specialty chemical manufacturing
Stable quality and global supply
Technical support for polymer modification
Custom additive solutions
Contact us today for technical consultation or sample testing.
Supplying specialty chemical solutions to customers across international markets in plastics, elastomers, and polymer processing.
Dedicated R&D and technical support teams assist customers in formulation development, dosage optimization, and process troubleshooting.
GYC continuously develops additive solutions — including the full GY-MI Series — to address evolving needs in sustainable materials and circular economy applications.