Product Information

Silberline Start


SD-021 Aluminium Paste


-Non-leafing aluminium flake pigment

-Medium particle size ‘Silver Dollar’ type


SD 021 is a medium particle size, non-leafing, silver dollar aluminium pigment paste. It is intended for use mainly in solvent based industrial finishes where it provides very effective cost in use.


Screen Analysis (Max Retained)

99.7% minimum (400 mesh)

Non-Volatile By Weight (Target)

64.0% (minimum)

Particle Size-Microns (Target)

21 (by Malvern Mastersizer)

Specific Gravity


Mineral Spirits

15.0% (max)

Aromatic solvents

21.0% (max)

Moisture Content

0.15% (max)


The paste should be soaked in about its own weight of solvent, ideally for one to eight hours. If using solvent alone is not feasible, the liquid coating medium can be substituted, but the dispersion time may be extended. Dispersion is best achieved by low energy stirring, using a slow speed blade capable of moving the whole mass. Further solvent or medium may be added at this stage. When a smooth consistency, free of soft aggregates has been obtained, the balance of the formulation may be slowly added. High shear should be avoided as it bends and breaks the flakes, reducing their brightness.


Aluminum pigment should be stored in the original shipping container and kept tightly sealed. Store containers in a cool, dry, well-ventilated, and properly rated area. Avoid any conditions that will suspend or float the particles in the air, creating a dust cloud. Avoid all possible sources of ignition. For additional information, please refer to the Safety Data Sheet (SDS) for this product, available from Silberline upon request. An SDS is supplied with all samples of this grade.

All statements, information and data presented herein are believed to be accurate and reliable but are not to be taken as a guarantee, express warranty or implied warranty of merchantability or fitness for a particular purpose, or representation, express or implied, for which seller assumes legal responsibility, and they are offered solely for your consideration, investigation and verification. Statements or suggestions concerning possible use of this product are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe on any patent. Copyright 2023 Silberline Manufacturing Co., Inc. All Rights Reserved.