advancell EM


Advancell EM is thermal expandable microsphere with thermoplastic cell containing low boiling point liquid hydrocarbon. When heated, Advancell EM microspheres expands greatly in size; the heat boils hydrocarbon while softens the thermoplastic shell and expands the shell.
Because it is hollow balloon, it creates closed cell structure. By selecting the appropriate grade, you can optimize the expansion starting temperature or degree of expansion.

Before ExpansionAfter Expansion
Average size15~40µm40~150µm

Application & Process


APPLICATION: It can be used in weight reduction and appearance improvement purpose for thermoplastics, inks, and coatings.

Structural Foam (EVA-EM, PVC, PP, PE, Epoxy, Rubber, Silicon, etc,), Wall Paper, Sound Damping Coating, Clay, Shoes, and functional filler. It can be used as mating agent as well.


It can be used in extrusion molding, injection molding, coating, and various other processes such as Press Molding, Blow Molding, and etc.


Characteristics of Thermal Expandable Microspheres

Characteristics of Thermal Expandable Microspheres After expansion, it creates very low density micro-balloons with the following characteristics.

 Cross SectionSurface
.Small and uniform Cell size
.Smooth Surface
Chemical Blowing Agents
.Large cell size
.Open-cell structure
.Surface pinholes

Appearance / SEM

Basic Properties

Average Diameter (before expansion)15~40µm
Amount of Hydrocarbon (before expansion)~25%
True Density (before expansion)1.00~1.20g/cm3
Bulk Density (before expansion)0.30~0.50g/cm3
Water Content (before expansion)0.8~3.0%
True Density after Expansion0.02~0.04g/cm3

Particle Size Distribution

Sharp Distrubution enables uniform expansion
  • Uniform cell structure
  • Excellent Expansion Efficiency (possible to reduce the dosage)
  • Excellent surface appearance with Uniform Expansion
  • Starting Expansion Temperature can be controlled

Distribution is broad and which will result uneven expansion
  • Expansion loss caused by unexpanded particles
  • Uneven expansion leads to physical properties and appearance loss
  • Difficult to control the starting expansion temperature



 General Grades

Grade Diameter Start Exp Temp Max Exp Temp TMA-density Application Processing Temp
EML101 14~20µm 120℃~130℃ 160℃~170℃ <21

Wall Paper, leather, expandable ink, etc

EMH204 38~44µm 115℃~125℃ 165℃~175℃ <12
EHM301 22~28µm 130℃~140℃ 160℃~170℃ <18

Wallpaper, gloss reduction additives, molding additives, etc

EHM302 18~24µm 130℃~140℃ 160℃~170℃ <23
EHM303 26~34µm 130℃~140℃ 160℃~170℃ <16
EM304 23~29µm 135℃~150℃ 170℃~185℃ <20
EHM401 26~34µm 140℃~150℃ 180℃~190℃ <11

 Foamed Plastic Grades

Grade Diameter Start Exp Temp Max Exp Temp TMA-density 成型温度
EHM401 26~34µm 140℃~150℃ 180℃~190℃ <11 160℃~190℃
EM403 26~34µm 150℃~170℃ 200℃~220℃ <7 180℃~210℃
EM501 22~28µm 160℃~180℃ 210℃~230℃ <14 190℃~220℃
P403M1 25~35µm 150℃~170℃ 200℃~220℃   180℃~210℃
P501M1 22~28µm 160℃~180℃ 210℃~230℃   190℃~220℃
P501E1 22~28µm 160℃~180℃ 210℃~230℃   190℃~220℃

Expansion Behavior

Expansion behavior with set heating speed


All values shown in the table mentioned above are not guranteed specification limit.

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