Manufacturing facilities can generate substantial amounts of plastic that never reach the consumer.
Injection molding runners, rejected parts, plastic purge, excess resin, damaged totes, pallets, film and off-spec materials can accumulate quickly. For some businesses, these materials are simply another waste-management expense.
But certain industrial plastics can have value in the recycling market.
Instead of paying to dispose of usable material, manufacturers may be able to sell plastic scrap to an industrial plastic buyer. The challenge is determining what buyers actually want and providing enough information for them to evaluate the material.
For businesses considering selling their plastic scrap, understanding the process can make finding the right recycling partner considerably easier.
Why Manufacturers Sell Their Plastic Scrap
Industrial plastic scrap is different from typical household recycling.
Manufacturers can generate large quantities of relatively consistent material. A production facility, for example, might produce thousands of pounds of polypropylene runners every month from the same manufacturing process.
Other common sources include:
- Injection molding operations
- Blow molding facilities
- Automotive manufacturers and suppliers
- Packaging manufacturers
- Warehouses and distribution centers
- Plastics manufacturers
- Construction product manufacturers
- Retail distribution operations
When these businesses generate sufficient quantities of recyclable material, an industrial recycler may be able to purchase and process it.
This can potentially turn a disposal problem into a recoverable material stream while reducing the amount of usable plastic being sent to landfills.
What Types of Industrial Plastic Scrap Can Be Sold?
The first factor is the resin.
Industrial plastic buyers typically specialize in particular polymers because each material has different processing requirements and end markets.
Common industrial plastics that may have recycling markets include:
- Polypropylene (PP)
- High-density polyethylene (HDPE)
- High-molecular-weight polyethylene (HMW)
- Low-density polyethylene (LDPE)
- Linear low-density polyethylene (LLDPE)
- ABS
- PET
- Polycarbonate
- Nylon
- PMMA/acrylic
- TPO
Knowing the resin is important because simply describing something as “plastic scrap” doesn’t give a buyer enough information.
If you’re unsure what material your facility generates, look at resin identification codes, supplier records, material specifications or production documentation.
The Form of the Scrap Matters Too
Two businesses can have exactly the same polymer but very different scrap streams.
One manufacturer might generate clean PP runners while another produces large rejected PP parts.
Common forms of industrial plastic scrap include:
- Sprues and runners
- Injection-molded parts
- Blow-molded parts
- Plastic purge
- Regrind
- Pellets
- Off-spec resin
- Plastic pallets
- Totes
- Crates
- Buckets
- Baled bottles
- Film
- Production trim
- Rejected products
Buyers need this information because the material’s form affects handling, transportation and processing.
A gaylord containing dense plastic regrind, for example, can have very different transportation economics than the same container filled with bulky molded parts.
Quantity Can Determine Whether a Buyer Is Interested
One of the most important considerations in industrial plastic recycling is volume.
Processing and transporting commercial plastic requires equipment, labor and freight. Small quantities may cost more to transport than the material is worth.
That’s why businesses should estimate the amount of scrap available before contacting a buyer.
Instead of saying:
“We have several containers of HDPE.”
Try:
“We currently have approximately 12,000 pounds of clean HDPE production scrap.”
The second description gives the buyer considerably more useful information.
It’s also important to explain whether the material represents a one-time opportunity or an ongoing manufacturing stream.
A facility generating several thousand pounds every month may be able to establish a recurring recycling program rather than arranging individual transactions whenever scrap begins accumulating.
Recurring Scrap Can Be Particularly Valuable to a Recycling Program
Consistency matters in industrial recycling.
Suppose a manufacturer generates the same polypropylene scrap every month.
The resin remains the same. The manufacturing process remains the same. The scrap is stored the same way, and approximately the same quantity is produced.
Once the recycler understands that material stream, future loads can become much easier to manage.
Businesses looking to improve their recycling programs should therefore consider tracking monthly scrap generation.
Record:
- Resin
- Quantity
- Source
- Color
- Form
- Storage method
- Frequency
After several months, a manufacturer may discover that what appeared to be miscellaneous waste is actually a predictable industrial material stream.
Contamination Can Reduce the Value of Plastic Scrap
One of the biggest mistakes businesses make is mixing recyclable plastic with other materials.
Imagine a container filled with clean HDPE production parts.
Now imagine that same container also contains cardboard, metal, gloves, food waste, labels and several unidentified plastics.
The second load requires significantly more sorting and creates a greater risk of contamination.
Whenever possible, manufacturers should separate plastic scrap at the point where it’s generated.
Dedicated containers can be established for individual materials such as:
PP ONLY
HDPE ONLY
ABS ONLY
NYLON ONLY
Simple procedures like these can help employees prevent cross-contamination before it occurs.
The cleaner and more consistent the stream, the easier it becomes for a recycler to determine whether the material can be processed.
Don’t Mix Different Plastics Just Because They Look Similar
Different polymers can look nearly identical.
A black polypropylene part and a black HDPE part, for example, may look similar to someone sorting scrap on a production floor.
That doesn’t mean they should be recycled together.
Mixing incompatible polymers can create processing problems and reduce the usefulness of the resulting recycled material.
Manufacturers should therefore identify scrap based on production records and resin information rather than appearance alone.
What Determines Industrial Plastic Scrap Prices?
Businesses naturally want to know what their plastic scrap is worth.
Unfortunately, there isn’t a universal price per pound for industrial plastic.
Several factors influence the economics of a particular load.
Resin
Different polymers have different recycling markets and demand.
Quantity
Larger commercial quantities may provide better transportation and processing economics.
Contamination
Clean material generally requires less sorting and preparation than contaminated material.
Color
Natural, single-color and mixed-color materials can have different potential end uses.
Form
Purge, regrind, film, parts and pellets can require different handling and processing.
Location
Freight can represent a significant portion of the cost of recycling bulky plastic.
Consistency
A known recurring material stream can be easier to evaluate than an unidentified one-time load.
These factors explain why buyers often need detailed information before providing a quote.
Freight Is Part of the Equation
Businesses sometimes focus entirely on the price of the plastic without considering transportation.
Industrial recycling doesn’t happen in isolation. The material has to move from the manufacturing or warehouse facility to somewhere it can be processed.
Distance matters.
Packaging matters.
Density matters.
Loading capabilities matter.
A buyer may therefore ask questions such as:
- Where is the material located?
- Is there a loading dock?
- Is a forklift available?
- Is the material palletized?
- How many gaylords are available?
- Is the material baled?
- What does the shipment weigh?
Providing this information early can make evaluating a load much easier.
Should Manufacturers Grind Plastic Before Selling It?
Grinding isn’t automatically necessary.
Companies sometimes assume that purchasing a grinder will make their plastic significantly more valuable. That isn’t always the case.
Size reduction can make some materials easier to store and transport, but grinding also introduces another manufacturing step and another opportunity for contamination.
If a facility isn’t currently grinding its scrap, it can make sense to speak with industrial plastic buyers before investing in additional equipment.
A recycler may already have the equipment necessary to process the material.
What Should You Send a Plastic Scrap Buyer?
Businesses can make the quoting process considerably easier by preparing a basic material profile.
Before contacting a buyer, collect:
- Resin type
- Scrap form
- Approximate weight
- Color
- Condition
- Known contamination
- Packaging method
- Facility location
- Photographs
- Available quantity
- Expected monthly quantity
For example:
“Our manufacturing facility generates approximately 10,000 pounds of clean polypropylene injection molding runners every six weeks. The material is black, stored in gaylords and located in Tennessee. We can provide photographs and resin specifications.”
That gives a buyer substantially more information than simply asking for the current price of polypropylene.
Choosing an Industrial Plastic Scrap Buyer
Businesses should also distinguish between general waste companies and companies that specialize in industrial plastic recycling.
An industrial plastic buyer should understand the requirements involved with commercial quantities of manufacturing scrap, including material identification, freight, storage and processing.
For companies generating qualifying commercial quantities, Seraphim Plastics works with manufacturers and other businesses looking to sell industrial plastic scrap, including materials such as PP, HDPE, HMW and other industrial polymers.
The goal isn’t simply to remove plastic from a facility.
A well-designed program should identify usable materials, keep them separated and move them back into recycling channels where they can potentially become feedstock for future applications.
From Manufacturing Waste to a Managed Material Stream
Industrial plastic recycling works best when businesses stop viewing every leftover piece of plastic as generic waste.
Start by identifying exactly what’s being generated.
Separate materials by resin. Keep contaminants out. Track how much material accumulates each month. Store the scrap consistently and document it with photographs.
Then approach a qualified industrial plastic scrap buyer with the information necessary to evaluate the material.
For manufacturers generating substantial volumes of recyclable plastic, these relatively simple operational changes can turn an inconsistent disposal problem into a structured recycling program—and potentially create value from material that might otherwise have been discarded.
