Solutions · Resin & Wax Storage
Resins and waxes are supplied as pellets, flakes, and fine powders – each with its own flow behavior and safety requirements. PW Silo Systems designs aluminum and stainless steel silos for resins, waxes, and powder coatings, with explosion protection and discharge planned for your product.
Resin & Wax Storage at a Glance
A resin or wax silo stores polyester resin, wax pellets, acrylic powder, melamine, or powder coatings between delivery and production. It protects the material from contamination and feeds it reliably to dosing, compounding, or processing.
Fine resin powders release combustible dust, and some waxes are sensitive to temperature. PW Silo Systems plans explosion protection, dust collection, discharge, and storage conditions around your product.
Why Resins & Waxes Are Demanding
Dust, flow behavior, and product separation decide how a resin and wax silo system is built.
Fine resin powders and powder coatings are combustible. Filling and conveying release dust.
Fine powders can bridge and stop flowing out of the silo.
Some waxes soften at elevated temperatures and can stick together.
Different resin grades and colors must not be mixed by accident.
In coated carbon steel silos, flaking paint and rust particles can end up in the resin.
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 resin silo depends on your product, your process, and your site. We review it with you.
Your Resin 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 moreResins & Waxes
Products marked “Tested in our lab” are on our list of bulk materials. The others we review with you based on your material data before designing the silo.
Tested in our lab
Polyester resin
Polyester resin is on our list of bulk materials tested in our lab.
Tested in our lab
Wax pellets
Wax pellets are on our tested list. Storage conditions are reviewed with you.
Tested in our lab
Acrylic powder
Acrylic powder is on our tested list. Dust and explosion protection are planned with you.
Tested in our lab
Melamine
Melamine is on our tested list.
Tested in our lab
Powder coating
Powder coating is on our tested list. Explosion protection and dust collection are planned with you.
Review with us
Solid epoxy resin
Solid epoxy resins we review with you based on your material data.
Review with us
PE wax, polyolefin wax
PE wax we review with you based on your material data.
Review with us
Hot-melt adhesive pellets
Hot-melt pellets we review with you based on your material data.
Also tested in our lab:
Send us your material data and we will review the right solution with you:
Material Check
Type in your 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 resin 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 resins and waxes in silos.
These products are on our list of bulk materials tested in our lab:
Epoxy and phenolic resins, PE wax, paraffin, and hot-melt pellets we review with you based on your material data.
Fine resin powders and powder coatings are combustible. For combustible bulk solids we supply explosion-protected silos designed in accordance with applicable codes and regulations. Venting devices – rupture discs or explosion vents – are selected for your silo, your product, and your application.
Yes. Wax pellets are on our tested list. Because some waxes soften at elevated temperatures, we review storage conditions and discharge with you for your product and your site.
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 resin 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.
Very likely. Our silo systems are designed for nearly all free-flowing, granular, and powdered bulk solids. Send us your material details – kernel size, moisture, and how the product is filled and discharged – and we will review the right storage solution with you.
Tell us about your resin 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 resin 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.
