Product Information

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01SILVET® 620-20-E

SILVET® 620-20-E Aluminum Pigment


SILVET 620-20-E is a medium particle size aluminum pigment produced in pellet form to reduce the potential for generating airborne pigment particles and to improve ease of handling. The pellets are composed of 80% aluminum pigment carried in 20% polyolefin. SILVET grades with an “E” suffix are more economical than SILVET “E1” grades and have similar ease of handling, but have slightly duller metallic effects and require more aggressive processing conditions for complete dispersion. SILVET 620-20-E is suitable for use in both plastics and powder coatings applications.

-Reflective flake grade



-Medium particle size, cornflake


SILVET E grades are economical aluminum pigments provided in pellet form for easy handling and incorporation. They are compatible with a variety of polymers, particularly polyolefins. They are typically used to make concentrates or compounds for use in final processing by injection molding, extrusion, blow molding or blown film processes. Because of their high aluminum pigment concentration and highly compacted form, they are recommended for use in masterbatch or compounding processes where enough shear exists to completely disperse the aluminum pigment. They are not recommended for use directly in end-use processing.

Additionally, SILVET E grades can be employed in co-extruded powder coating applications.



80% (+/- 2%) Al flake


20% (+/- 2%) carrier

Particle Size-Microns (Target)


Specific Gravity

ca 1.93


PE Wax

Carrier Percentage


Non-Volatile By Weight (Target)

98.5 minimum by weight


Plastic Application – It is normally sufficient to tumble blend the pellets with the base resin and any additional colorants or additives before processing. Incorporation techniques should not subject the flakes to high shear forces.

Co-Extruded Powder Application – When using SILVET products for manufacturing powder coatings, care must be taken to maintain the aesthetics of the flake and to allow for safe incorporation. The blending of the SILVET with the powder coating resins should be carried out in a low intensity mixer. If this cannot be accomplished, the SILVET pellets should be added at the very end of a high intensity mixer cycle. The objective of mixing is only to distribute the SILVET throughout the batch and not to reduce the pellets to fine particles. When discharging the batch from the mixer to the extruder, the vessels should be bonded to the same electrical potential to prevent static electricity build up. Single or twin-screw extruders can then be used to provide proper dispersion of the Silvet® into the powder coating resin. The metallic blend should be extruded below the curing temperature of the resin and then micronized to the proper size. Excessive shear at any point in this process can cause flakes to become folded or broken, thus creating a large number of smaller flakes. This will result in a reduced reflectivity of the flakes and a graying in color.


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 2024 Silberline Manufacturing Co., Inc. All Rights Reserved.