MICA POWDER

Introduction of YAMAGUCHI MICA POWDER (Calcined Mica Powder for friction materials)

It is generally believed that calcined mica is more effective than non-calcined mica when it is used as friction material for brakes. It will improve the physical properties of brakes substantionally. Yamaguchi's "NCF-932" calcined mica, has been top of the line product for more than ten years on the primary market with our superior technical knowledge and quality control.

SPECIFICATION SHEET

ITEM UNIT MICA POWDER
NCF-932 JC-093
LOSS ON DRYING wt% 1.0 max 1.0 max
pH - 7.0 ~ 9.5 7.0 ~ 9.5
BULK DENSITY g/ml 0.16 ~ 0.25 0.10 ~ 0.17
OIL ABSORPTION ㎖/100g 95 ~ 115 95 ~ 125
LOSS ON IGNITION wt% 2.0 max 2.0 max
PARTICLE DISTRIBUTION wt% 42Mesh+ : 18~38
100Mesh + : 26~27
200Mesh + : 8 ~20
200Mesh – : 5 ~15
42Mesh+ : 5 ~21
100Mesh+ : 15~55
200Mesh+ :15~35
200Mesh– : 15~35

PURPOSE OF USE

Markets Effectiveness
Plastics High rigidity, Low warpage, Little molding shrinkage(TD,MD) Increase in heat resistance, Anti-vibration, etc.
Paints Corrosion-proof, Water-poof, Superior heat resistance, Little paint film shrinkage, Anti-vibration, etc.
Ceramics Superior heat resistance and little molding shrinkage for building material board, Excellent pottery mold release agent, etc.
Rubbers Increase in hardness, Superior heat resistance, Superior mold release agent and Anti-tacking, Anti-vibration.etc
Cosmetics Brilliant texture, Grant of luster, Anti-caking for foundation, etc.
(others) Excellent base for pearl mica, granulates pigments for cultured marble and pottery / glass.

GRADE

YAMAGUCHI ORIGINAL METHOD - WET GROUND GRADE

Trade
Name
Average Particle Size
*(um)
Bulk Density
(g/ml)
Loss on Drying
(%)
Aspect Ratio
(ref.)
Country of
Origin
Remarks
A-11 3 0.11 1.0 - JAPAN Super extra fine mica powder,
100Mesh
A-21S 22 0.13 0.5 70 JAPAN All-purpose mica, 325Mesh
AB-25S 24 0.17 0.4 80 JAPAN Rid A-21S of fine particle, 325Mesh
A-41S 47 0.26 0.2 80 JAPAN All-purpose mica, 200Mesh

(The average particle diameter indicates its dimension average diameter measured by laser diffractometry)

MEDIA MILL METHOD - WET GROUND GRADE

Trade
Name
Average Particle Size
*(um)
Bulk Density
(g/ml)
Loss on Drying
(%)
Aspect Ratio
(ref.)
Country of
Origin
Remarks
SYA-21R 27 0.21 0.5 90 INDIA Global all-purpose mica, 325Mesh

(The average particle diameter indicates its dimension average diameter measured by laser diffractimetry)

DRY GROUND GRADE

Trade
Name
Average Particle Size
*(um)
Bulk Density
(g/ml)
Loss on Drying
(%)
Aspect Ratio
(ref.)
Country of
Origin
Remarks
B-82 180 0.25 0.2 100 JAPAN Japanese product, 32Mesh
SB-061R 130 0.27 0.4 - INDIA Indian product, 60Mesh

(The average particle diameter indicates its dimension average diameter measured by laser diffractimetry)

HYDRID GROUND METHOD-EXTRA FINE GRADE

Trade
Name
Average Particle Size
*(um)
Bulk Density
(g/ml)
Loss on Drying
(%)
Aspect Ratio
(ref.)
Country of
Origin
Remarks
SJ-005 5 0.17 1.0 - JAPAN All-purpose extra fine mica powder, 1000Mesh
SJ-010 10 0.14 1.0 - JAPAN All-purpose extra fine mica powder, 500Mesh

(The average particle diameter indicates its dimension average diameter measured by laser diffractimetry)