Color Contamination
A few pellets of the wrong color are visible in the end product.
- Our solution
- Dedicated silos or PW StoreLine multi-compartment silos for each color.
- Your benefit
- Clean colors and fewer rejects.
Solutions · Masterbatch Storage
Masterbatch is dosed in small quantities but determines the color and properties of the end product – one wrong pellet shows. PW Silo Systems designs aluminum and stainless steel silos for masterbatch and its raw materials, with dedicated storage and clear product separation.
Masterbatch Storage at a Glance
A masterbatch silo stores color, white, black, or additive masterbatch – or its raw materials such as pigments, carbon black, and fillers – close to compounding or processing. It protects the pellets from contamination and feeds them reliably to dosing.
Masterbatch producers and processors handle many colors and recipes side by side. Pellets of one color must never end up in another product. PW Silo Systems designs storage and product separation around your masterbatch portfolio.
Why Masterbatch Is Demanding
Color accuracy and product separation decide how a masterbatch silo system is built.
A few pellets of the wrong color are visible in the end product.
Masterbatch portfolios include many colors and additive recipes.
Frequent changes between colors and recipes require clean equipment.
Pigments, carbon black, titanium dioxide, and fillers are fine powders that can bridge.
In coated carbon steel silos, flaking paint and rust particles can end up in the masterbatch.
Production lots differ, and a silo filled in batches forms layers of different quality.
Silo Materials
We build silos exclusively in aluminum and stainless steel. Both materials offer high corrosion resistance and a long service life – without a coating as the only protection against corrosion.
Which of our two materials fits your masterbatch silo depends on your product, your process, and your site. We review it with you.
Your Masterbatch Silo System
Storage silos, panel silos, blending silos, process silos, filtration, and safety equipment are engineered as one system. That means fewer interfaces for your team.
Storage
Concentric mass-flow discharge without asymmetric flow zones – as standard, site-assembled, indoor, or multi-compartment silos.
Learn moreLarge Volumes
Seal-welded panel silos up to 53,000 ft³ for petrochemicals, plastics, and recycling.
Learn moreBlending
Blending and homogenizing of polymer pellets with PW PipeBlend and PW CentralPipeBlend.
Learn moreProcess
Process silos for deodorizing, degassing, and drying.
Learn moreFiltration
Dust separation during filling and conveying.
Learn moreSafety & Monitoring
Rupture discs or explosion vents for combustible dust, level measurement for reliable monitoring of the silo content.
Learn moreMasterbatch & Raw Materials
Masterbatch itself is not on our tested list yet – we review your product with you. Many raw materials are on our list of bulk materials tested in our lab.
Review with us
Color masterbatch, color concentrate
Color masterbatch requires strict separation by color. We review your product range with you.
Review with us
White masterbatch, TiO₂ masterbatch
White masterbatch is based on titanium dioxide. We review your product with you.
Review with us
Black masterbatch, carbon black masterbatch
Black masterbatch is based on carbon black. We review your product with you.
Review with us
Additive masterbatch, UV and antistatic masterbatch
Additive masterbatches carry functional additives. We review your product with you.
Tested in our lab
Carbon black
Carbon black is on our list of bulk materials tested in our lab.
Tested in our lab
Titanium dioxide, TiO₂
Titanium dioxide is on our tested list.
Tested in our lab
Plastic additives
Plastic additives are on our tested list.
Tested in our lab
Wax pellets
Wax pellets are on our tested list. They are used as carriers and processing aids.
Also tested in our lab:
Send us your material data and we will review the right solution with you:
Material Check
Type in your raw material or any other bulk material to see whether it has already been tested in our lab. The list covers 287 bulk materials.
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Service in the U.S.
With more than 40 years of experience in silo engineering, we support your masterbatch silo project from the first design discussion to commissioning. We deliver to every U.S. state and install with our own qualified personnel.
FAQ
Answers to the questions plant managers, engineers, and buyers ask most often about storing masterbatch in silos.
Yes. Masterbatch itself is not on our tested list yet – we review your product with you based on your material data. These raw materials are on our list of bulk materials tested in our lab:
We recommend a dedicated silo per color – or PW StoreLine multi-compartment silos that keep several products separate in one silo. For frequent product changes, the PW ConeBlend blending silo has a hopper that is quick and easy to clean.
PW FlowLine adds tailored discharge solutions for poorly flowing bulk solids – such as PW SpeedBlow air fluidization and bin activators.
Both are possible. Which material fits your masterbatch silo depends on your product, your process, and your site. We review the options with you.
Yes. We deliver to every U.S. state and support your project with silo transport, field assembly, silo installation and supervision, and site relocation of existing systems.
Tell us about your masterbatch grades, required storage capacity, how the silo is filled and discharged, and your site conditions. Based on this, we work out the material, silo type, and configuration with you and send you a detailed quote.
Your Project
Whether you need a single masterbatch silo, a large panel silo, or a complete system with blending and process silos, tell us about your requirements. We'll develop a solution that fits your product, your process, and your site.
Send a Request NowWhat Happens Next
Tell us about your bulk material, your process, and your site conditions.
We work with you on material, silo type, and configuration – based on a bulk material analysis if needed.
You receive a custom-engineered solution with a detailed quote.