JGB M4 is the Glass beads kind conforming to JIS R 3301 Japanese Standard, used for road marking paint to increase the reflection of paint in both day and night. JGB M4 has the size smaller than 850 micron, high fineness, meet the requirements about reflection, roundness and bead sizes follow specific standards.

JGB M4 has 2 kinds:

JGB M41 conforms to JIS R 3301 1 Japanese Standard

JGB M42 conforms to JIS R 3301 2 Japanese Standard

Packing: 25 kg/bag

 

PARAMETERS

Property JGB M4 JIS R 3301 Standard
Spherical beads (%) ≥80 ≥ 80
Specific gravity (g/cm³) 2.46 2.4 – 4.3
Refractive index 1.50〈RI〈1.70 1.50 ≤ RI ≤1.70
Waterproof index 4.3 <10
Magnetic particle content 0.04 ≤ 0.1

Particle size of JGB M41 (conform to JIS R 3301 1 Standard):

Sieve (µm) Retained ratio (%)
JGB M41
>850 0
850 – 600 5 – 30
600 – 300 30 – 80
300– 106 10 – 40
<106 0 – 5

Particle size of JGB M42 (conform to JIS R 3301 2 Standard):

Sieve (µm) Retained ratio (%)
JGB M42
>600 0
600 – 300 40 – 90
300 – 150 5– 60
<150 0 – 5

 

* Customers could choose the available products or send specific requirements to our factory to do the products suitable with your demands.