for: industrial spray paints/aerosols - detailed information 
| Quality |
Particle size
distribution * |
Optical
characteristics |
| |
D10 (µm) |
D50 (µm) |
D90 (µm) |
|
| Brilliant 2500/WS/85-15 ** |
16 |
42 |
78 |
Coarse/very brilliant |
| Fine 36/WS/85-15 |
10 |
28 |
58 |
Coarse/very brilliant |
| Fine 4000/WS/85-15 |
6 |
19 |
43 |
Fine/brilliant |
| Extra Fine 5000/WS/85-15 |
5 |
15 |
37 |
Fine/brilliant |
| Super Fine 6000/WS/85-15 |
3 |
12 |
25 |
Fine/brilliant |
| 9000/WS/85-15 |
3 |
9 |
20 |
Fine/brilliant |
| 13000/WS/85-15 |
2 |
7 |
16 |
Very fine/high coverage |
| Ultra Fine FT/WS/85-15 |
1 |
3 |
7 |
Very fine /high coverage |
* Values of particle size distribution are based on powder analysis.
| ** e.g. :Brilliant 2500/WS/85-15 |
Brilliant 2500 |
Pigment quality |
| |
WS: White spirit (1) |
Solvent Type |
| |
85: |
85% solids |
| |
15: |
15% liquids |
(1) Also available in SA : Solvent naphta & BG : Butylglycol. Other solid / liquid ratios available on request.
NOTES
Please note that these pastes are prepared with mineral spirit.
Other solvents or pasting agents are available on request (ie solvent naphta, butylglycol, other alcohols,…)
The combination of fine bronze grades with coarse bronze grades (i.e. ratio 80-20) will provide a sparkling effect.
The diameter of the spray nozzle should be at least three times larger than the dimension of the largest particles, this to avoid the clogging of the nozzle.
Indicative formulation:
Bronze +/- 5%
Binder(incl.solvent) +/- 95%
Suggestion:
Suggested binder: paraloid B66 acrylic binder (Rohm&Haas) in butylacetate ratio 30/70.
How to use:
1/ Mix a small quantity of solvent to the bronze powder to obtain a homogeneous predispersion.
2/ Add predispersion gradually to binder using a slow rotation mixer (50 rpm)
3/ Spray formulation at 20 seconds Zahn 2 or Ford 4.
Note:
The diameter of the spraynozzle should be at least three times larger than the dimension of the largest particles.
Evaluation of stability
for aerosol paints
The stability of the formulation is normally tested at 50°C (in an oven) for the period of minimum one month.